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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                                   FORM 10-KSB

                Annual Report Pursuant to Section 13 or 15(d) of
                       the Securities Exchange Act of 1934

For the Fiscal Year Ended                          (Commission File No. 0-23047)
December 31, 2003

                             SIGA Technologies, Inc.
             (Exact name of registrant as specified in its charter)

                Delaware                                        13-3864870
     (State or other jurisdiction of                      (IRS Employer Id. No.)
     incorporation or organization)

     420 Lexington Avenue, Suite 601                              10170
              New York, NY                                      (zip code)
(Address of principal executive offices)

       Registrant's telephone number, including area code: (212) 672-9100

          Securities registered pursuant to Section 12(b) of the Act:

                                      None
                                (Title of Class)

          Securities registered pursuant to Section 12(g) of the Act:

                         common stock, $.0001 par value
                                (Title of Class)

Indicate by check mark whether the registrant (1) has filed all reports required
to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during
the preceding 12 months (or for such shorter period that the registrant was
required to file such reports), and (2) has been subject to such filing
requirements for the past 90 days. Yes |X| No |_|.

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405
of Regulation S-B is not contained herein, and will not be contained, to the
best of registrant's knowledge, in definitive proxy or information statements
incorporated by reference in Part III of this Form 10-KSB or any amendment to
this Form 10-KSB. |_|.

The aggregate market value of the voting stock held by non-affiliates of the
registrant, based upon the closing sale price of the common stock on March 22,
2004 as reported on the Nasdaq SmallCap Market was approximately $33,573,348. As
of March 22, 2004 the registrant had outstanding 23,427,264 shares of common
stock. For the year ended December 31, 2003 SIGA had revenues of $731,743.

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SIGA Technologies, Inc. Form 10-KSB Table of Contents Page No. PART I Item 1. Business ................................................................................... 2 Item 2. Properties ................................................................................. 15 Item 3. Legal Proceedings .......................................................................... 15 Item 4. Submission of Matters to a Vote of Security Holders ........................................ 15 PART II Item 5. Market For Registrant's Common Equity and Related Stockholder Matters ...................... 17 Item 6. Management's Discussion and Analysis of Financial Condition and Results of Operations ...... 18 Item 7. Financial Statements and Supplementary Data ................................................ 35 Item 8. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure ....... 35 Item 8A. Controls and Procedures..................................................................... 35 PART III Item 9. Directors and Executive Officers of the Registrant ......................................... 36 Item 10. Executive Compensation ..................................................................... 39 Item 11. Security Ownership of Certain Beneficial Owners and Management and Related Stockholders Matters .................................................................................... 42 Item 12. Certain Relationships and Related Transactions ............................................. 44 PART IV Item 13. Exhibits, Material Agreements and Reports on Form 8-K ...................................... 45 Item 14. Principal Accountant Fees and Services ..................................................... 48 SIGNATURES ........................................................................................... 50 1

Item 1. Business Certain statements in this Annual Report on Form 10-KSB, including certain statements contained in "Business" and "Management's Discussion and Analysis of Financial Condition and Results of Operations," constitute "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended, and Section 21E of the Securities Exchange Act of 1934, as amended. The words or phrases "can be," "expects," "may affect," "may depend," "believes," "estimate," "project" and similar words and phrases are intended to identify such forward-looking statements. Such forward-looking statements are subject to various known and unknown risks and uncertainties and SIGA cautions you that any forward-looking information provided by or on behalf of SIGA is not a guarantee of future performance. SIGA's actual results could differ materially from those anticipated by such forward-looking statements due to a number of factors, some of which are beyond SIGA's control, including (i) the volatile and competitive nature of the biotechnology industry, (ii) changes in domestic and foreign economic and market conditions, and (iii) the effect of federal, state and foreign regulation on SIGA's businesses. All such forward-looking statements are current only as of the date on which such statements were made. SIGA does not undertake any obligation to publicly update any forward-looking statement to reflect events or circumstances after the date on which any such statement is made or to reflect the occurrence of unanticipated events. SIGA Technologies, Inc. is referred to throughout this report as "SIGA," "the Company," "we" or "us." Introduction SIGA is a biotechnology company incorporated in Delaware on December 9, 1996. We aim to discover, develop and commercialize novel anti-infectives, antibiotics and vaccines for serious infectious diseases, including products for use in defense against biological warfare agents such as Smallpox. We are developing a technology for the mucosal delivery of our vaccines which may allow the vaccines to activate the immune system at the mucus lined surfaces of the body -- the mouth, the nose, the lungs and the gastrointestinal and urogenital tracts -- the sites of entry for most infectious agents. Our anti-infectives program are aimed at the increasingly serious problem of drug resistance. These programs are designed to block the ability of bacteria to attach to human tissue, the first step in the infection process. Technology Anti-Infectives Technology: Prevention of Attachment and Infectivity The bacterial infectious process generally includes three steps: colonization, invasion and disease. The adherence of bacteria to a host's surface is crucial to establishing colonization. Bacteria adhere through a number of mechanisms, but generally by using highly specialized surface structures which, in turn, bind to specific structures or molecules on the host's cells or, as discussed below, to inanimate objects residing in the host. Once adhered, many bacteria will invade the host's cells and either establish residence or continue invasion into deeper tissues. During any of these stages, the invading bacteria can cause the outward manifestations of disease, in some cases through the production and release of toxin molecules. The severity of disease, while dependent on a large combination of factors, is often the result of the ability of the bacteria to persist in the host. These bacteria accomplish this persistence by using surface molecules which can alter the host's nonspecific mechanisms or its highly specific immune responses to clear or destroy the organisms. Unlike conventional antibiotics, our anti-infectives approaches aim to block the ability of pathogenic bacteria to attach to and colonize human tissue, thereby preventing infection at its earliest stage. Our scientific strategy is to inhibit the expression of bacterial surface proteins required for bacterial infectivity. We believe that this approach has promise in the areas of hospital-acquired drug-resistant infections and a broad range of other diseases caused by bacteria. Many special surface proteins used by bacteria to infect the host are anchored in the bacterial cell wall. Scientists at The Rockefeller University ("Rockefeller") have identified an amino acid sequence and related enzyme, a selective protease, that are essential for anchoring proteins to the surface of most Gram-positive bacteria. 2

Published information indicates that this amino acid sequence is shared by more than 50 different surface proteins found on a variety of Gram-positive bacteria. This commonality suggests that this protease represents a promising target for the development of a new class of antibiotic products for the treatment of a wide range of infectious diseases. Experiments by our founding scientists have shown that without this sequence, proteins cannot become anchored to the bacterial surface and thus the bacteria are no longer capable of attachment, colonization or infection. Such "disarmed" bacteria should be readily cleared by the body's immune system. Our drug discovery strategy is to use a combination of structure-based drug design and high throughput screening procedures to identify compounds that inhibit the protease, thereby blocking the anchoring process. If successful, this strategy should provide relief from many Gram-positive bacterial infections, but may prove particularly important in combating diseases caused by the emerging antibiotic resistance of the Gram-positive organisms S. aureus, Streptococcus pneumoniae, and the enterococci. In contrast to the above program, which focuses on Gram-positive bacteria, our pilicide program, based upon initial research performed at Washington University in St. Louis ("Washington University"), focuses on a number of new and novel targets all of which impact on the ability of Gram-negative bacteria to assemble adhesive pili on their surfaces. Pili are proteins on the surfaces of Gram-negative bacteria -- such as E. coli, salmonella, and shigella -- that are required for the attachment of the bacteria to human tissue, the first step in the infection process. This research program is based upon the well-characterized interaction between a periplasmic protein -- a chaperone -- and the protein subunits required to form pili. In addition to describing the process by which chaperones and pili subunits interact, we have developed the assay systems necessary to screen for potential therapeutic compounds, and have provided an initial basis for selecting novel antibiotics that work by interfering with the pili adhesion mechanism. Vaccine Technologies: Mucosal Immunity and Vaccine Delivery Using proprietary technology licensed from Rockefeller, SIGA is developing certain commensal bacteria ("commensals") as a means to deliver mucosal vaccines. Commensals are harmless bacteria that naturally inhabit the body's surfaces with different commensals inhabiting different surfaces, particularly the mucosal surfaces. Our vaccine candidates use genetically engineered commensals to deliver antigens for a variety of pathogens to the mucosal immune system. When administered, the genetically engineered commensals colonize the mucosal surface and replicate. By activating a local mucosal immune response, our vaccine candidates are designed to prevent infection and disease at the earliest possible stage. By comparison, most conventional vaccines are designed to act after infection has already occurred. Our commensal vaccine candidates use Gram-positive bacteria. Rockefeller scientists have identified a protein region that is used by Gram-positive bacteria to anchor proteins to their surfaces. We are using the proprietary technology licensed from Rockefeller to combine antigens from a wide range of infectious organisms, both viral and bacterial, with the surface protein anchor region of a variety of commensal organisms. By combining a specific antigen with a specific commensal, vaccines may be tailored to both the target pathogen and its mucosal point of entry. To target an immune response to a particular mucosal surface, a commensal vaccine would employ a commensal organism that naturally inhabits that surface. For example, vaccines targeting sexually transmitted diseases might employ Lactobacillus acidophilus, a commensal colonizing the female urogenital tract. Vaccines targeting gastrointestinal diseases could employ Lactobacillus casei, a commensal colonizing the gastrointestinal tract. We have conducted initial experiments using Streptococcus gordonii ("S. gordonii"), a commensal that colonizes the oral cavity and which may be used in vaccines targeting pathogens that enter through the upper respiratory tract, such as the influenza virus. By using an antigen unique to a given pathogen, the technology may potentially be applied to any infectious agent that enters the body through a mucosal surface. Our founding scientists have expressed and anchored a variety of viral and bacterial antigens on the outside of S. gordonii, including the M6 protein from group A streptococcus, a group of organisms that causes a range of diseases, including strep throat, necrotizing fasciitis, impetigo and scarlet fever. In addition, proteins from other infectious agents, such as HIV and human papilloma virus have also been expressed using this system. We believe this technology will enable the expression of most antigens regardless of size or shape. In animal studies, we have shown that the administration of a genetically 3

engineered S. gordonii vaccine prototype induces both a local mucosal immune response and a systemic immune response. We believe that mucosal vaccines developed using our proprietary commensal delivery technology could provide a number of advantages, including: o More complete protection than conventional vaccines: Mucosal vaccines in general may be more effective than conventional parenteral vaccines, due to mucosal vaccines' ability to produce both a systemic and local (mucosal) immune response. o Safety advantage over other live vectors: A number of bacterial pathogens have been genetically rendered less infectious, or attenuated, for use as live vaccine vectors. Commensals, by virtue of their substantially harmless nature, may offer a safer delivery vehicle without fear of genetic reversion to the infectious state inherent in attenuated pathogens. o Non-injection administration: Oral, nasal, rectal or vaginal administration of the vaccine eliminates the need for painful injections with their potential adverse reactions. o Potential for combined vaccine delivery: The Children's Vaccine Initiative, a worldwide effort to improve vaccination of children sponsored by the World Health Organization (WHO), has called for the development of combined vaccines, specifically to reduce the number of needle sticks per child, by combining several vaccines into one injection, thereby increasing compliance and decreasing disease. We believe our commensal delivery technology can be an effective method of delivery of multi-component vaccines within a single commensal organism that address multiple diseases or diseases caused by multiple strains of an infectious agent. o Eliminating need for refrigeration: One of the problems confronting the effective delivery of parenteral vaccines is the need for refrigeration at all stages prior to injection. The stability of the commensal organisms in a freeze-dried state would, for the most part, eliminate the need for special climate conditions, a critical consideration, especially for the delivery of vaccines in developing countries. o Low cost production: By using a live bacterial vector, extensive downstream processing is eliminated, leading to considerable cost savings in the production of the vaccine. The potential for eliminating the need for refrigeration would add considerably to these savings by reducing the costs inherent in refrigeration for vaccine delivery. Surface Protein Expression System ("SPEX") The ability to overproduce many bacterial and human proteins has been made possible through the use of recombinant DNA technology. The introduction of DNA molecules into E. coli has been the method of choice to express a variety of gene products, because of this bacteria's rapid reproduction and well-understood genetics. Yet despite the development of many efficient E. coli-based gene expression systems, the most important concern continues to be associated with subsequent purification of the product. Recombinant proteins produced in this manner do not readily cross E. coli's outer membrane, and as a result, proteins must be purified from the bacterial cytoplasm or periplasmic space. Purification of proteins from these cellular compartments can be very difficult. Frequently encountered problems include low product yields, contamination with potentially toxic cellular material (i.e., endotoxin) and the formation of large amounts of partially folded polypeptide chains in non-active aggregates termed inclusion bodies. To overcome these problems, we have taken advantage of our knowledge of Gram-positive bacterial protein expression and anchoring pathways. This pathway has evolved to handle the transport of surface proteins that vary widely in size, structure and function. Modifying the approach used to create commensal mucosal vaccines, we have developed methods which, instead of anchoring the foreign protein to the surface of the recombinant Gram-positive bacteria, result in it being secreted into the surrounding medium in a manner which is readily amenable to simple batch purification. We believe the advantages of this approach include the ease and 4

lower cost of Gram-positive bacterial growth, the likelihood that secreted recombinant proteins will be folded properly, and the ability to purify recombinant proteins from the culture medium without having to disrupt the bacterial cells and liberating cellular contaminants. Gram-positive bacteria may be grown simply in scales from those required for laboratory research up to commercial mass production. Product Candidates and Market Potential Biological Defense Program. The U.S. government's proposed budget for the Department of Homeland Security (the "DHS") for the fiscal year beginning October 1, 2005 includes $2.5 billion of federal spending on Project BioShield. In addition to contributing funds to the DHS, the Department of Defense will be looking for innovative approaches to the prevention and treatment of biological warfare agents. One of the major concerns is Smallpox -- although declared extinct in 1980 by the World Health Organization, there is a threat that a rogue nation or a terrorist group may have an illegal inventory of the virus that causes Smallpox. The only legal inventories of the virus are held under extremely tight security at the Centers for Disease Control and Prevention (the "Centers for Disease Control") in Atlanta, Georgia and at a laboratory in Russia. As a result of this threat, the U.S. government has announced its intent to make significant expenditures on finding a way to counteract the virus if turned loose by terrorists or on a battlefield. The Congressional Budget Office (the "CBO") reported that the DHS projects the acquisition of 60 million doses of new Smallpox vaccines over a three year period, commencing 2005. At an estimated $15 per dose, the cost would be approximately $900 million. Further the CBO reports that the DHS will spend an additional $1 billion to replace expired stocks in the 2007-2013 period. The FDA has amended its regulations, effective June 30, 2002, so that certain new drug and biological products used to reduce or prevent the toxicity of chemical, biological, radiological, or nuclear substances may be approved for use in humans based on evidence of effectiveness derived only from appropriate animal studies and any additional supporting data. We believe that this change could make it possible for us to have potential products in animal models approved for sale within a relatively short time frame if our programs are successful. Our Chief Scientific Officer, Dennis Hruby, has over 20 years experience working on Smallpox-related research and has been leading a SIGA/Oregon State University consortium working on an antiviral drug development project for the past two years. SIGA Biological Warfare Defense Product Portfolio Bacterial Commensal Vectors: Our scientists have developed methods that allow essentially any gene sequence to be expressed in GRAS gram-positive bacteria, with the foreign protein being displayed on the surface of the live recombinant organisms. Since these organisms are inexpensive to grow and are very stable, this technology affords the possibility of rapidly producing live recombinant vaccines against any variety of biological agents that might be encountered, such as Bacillus anthracis (anthrax) or Smallpox. Surface Protein Expression (SPEX) System: Our scientists have harnessed the protein expression pathways of gram-positive bacteria and turned them into protein productions factories. Using our proprietary SPEX system, we can produce foreign proteins at high levels in the laboratory for use in subunit vaccine formulations. Furthermore, we can envision engineering these bacteria to colonize the mucosal surfaces of soldiers and/or civilians and secrete anti-toxins that protect against aerosolized botulism toxin. Antibiotics: To combat the problems associated with emerging antibiotic resistance, our scientists are developing drugs designed to hit a new target - the bacterial adhesion organelles. Specifically, by using novel enzymes required for the transport and/or assembly of the proteins and structures that bacteria require for adhesion or colonization, we are developing new classes of broad spectrum antibiotics. This may prove invaluable in providing prompt treatment to individuals encountering an unknown bacterial pathogen in the air or food supply. Anti-Smallpox Drugs: While deliberate introduction of any pathogenic agent would be devastating, we believe the one that holds the greatest potential for harming the general U.S. population is Smallpox. At present there is no effective drug with which to treat or prevent Smallpox infections. To address this serious risk, our scientists have identified two key Smallpox proteinases and are using their expertise in the design of proteinase inhibitors to attempt to develop an effective antiviral drug that could treat a Smallpox infection. 5

The market potential for our biological warfare defense products has not been quantified as yet beyond the potential to obtain a share of the approximately $9 billion the federal government is committing to support research in the coming year. The government's purchase of approximately $800 million worth of Smallpox vaccines to have an inventory on hand if needed is evidence of such market potential. Anti-Infectives Our anti-infectives program is targeted principally toward drug-resistant bacteria and hospital-acquired infections. According to estimates from the Centers for Disease Control, approximately two million hospital-acquired infections occur each year in the United States. Our anti-infectives approaches aim to block the ability of bacteria to attach to and colonize human tissue, thereby blocking infection at the first stage in the infection process. By comparison, antibiotics available today act by interfering with either the structure or the metabolism of a bacterial cell, affecting its ability to survive and to reproduce. No currently available antibiotics target the attachment of a bacterium to its target tissue. We believe that, by preventing attachment, the bacteria should be readily cleared by the body's immune system. Gram-Positive Antibiotic Technology. Our lead anti-infectives program is based on a novel target for antibiotic therapy. Our founding scientists have identified an enzyme, a selective protease, used by most Gram-positive bacteria to anchor certain proteins to the bacterial cell wall. These surface proteins are the means by which certain bacteria recognize, adhere to and colonize specific tissue. Our strategy is to develop protease inhibitors as novel antibiotics. We believe protease inhibitors will have wide applicability to Gram-positive bacteria in general, including antibiotic resistant staphylococcus and a broad range of serious infectious diseases including meningitis and respiratory tract infections. In 1997, we entered into a collaborative research and license agreement with Wyeth to identify and develop protease inhibitors as novel antibiotics. In the first quarter of 2001, we received a milestone payment from Wyeth for delivery of the first quantities of protease for screening, and high-throughput screening for protease inhibitors was initiated. In connection with our effort on this program we have entered into a license agreement with the University of California at Los Angeles for certain technology that may be incorporated into our development of products for Wyeth. High throughput screening of compound libraries has been completed and lead compounds are currently being evaluated in the laboratory and in animals. Gram-Negative Antibiotic Technology. In 1998, we entered into a set of technology transfer and related agreements with MedImmune, Inc., Astra AB and Washington University, pursuant to which we acquired rights to certain Gram-negative antibiotic targets, products, screens and services developed at Washington University. In February 2000, we ended our collaborative research and development relationship with Washington University on this technology. (See "Collaborative Research and Licenses"). We maintain a non-exclusive license to technology acquired through these related agreements. We are using this technology in the development of antibiotics against Gram-negative pathogens. As described above, these bacteria use structures called pili to adhere to target tissue, and we plan to exploit the assembly and export of these essential infective structures as novel anti-infective targets. We continue to work on enhancing the intellectual property that we jointly share with Washington University. Broad-Spectrum Antibiotic Technology. An initial host response to pathogen invasion is the release of oxygen radicals, such as superoxide anions and hydrogen peroxide. The DegP protease is a first-line defense against these toxic compounds, which are lethal to invading pathogens, and is a demonstrated virulence factor for several important Gram-negative pathogens: Salmonella typhimurium, Salmonella typhi, Brucella melitensis and Yersinia enterocolitica. In all of these pathogens it was demonstrated that organisms lacking a functional DegP protease were compromised for virulence and showed an increased sensitivity to oxidative stress. It was also recently demonstrated that in Pseudomonas aeruginosa conversion to mucoidy, the so-called CF phenotype involves two DegP homologues. Our scientists recently demonstrated that the DegP protease is conserved in Gram-positive pathogens, including S. pyogenes, S. pneumoniae, S. mutans and S. aureus. Moreover, our investigators have shown a conservation of function of this important protease in Gram-positive pathogens and believe that DegP represents a true broad-spectrum anti-infective development target. Our research has uncovered a virulence-associated target of the DegP protease that will be used to design an assay for high-throughput screening for the identification of lead inhibitors of this potentially important anti-infective target. 6

There are currently more than 100 million prescriptions written for antibiotics annually in the U.S. and we estimate the worldwide market for antibiotics to be more than $26 billion. Although our products are too early in development to make accurate assessments of how well they might compete, if successfully developed and marketed against other products currently existing or in development at this time, the successful capture of even a relatively small global market share could lead to a large dollar volume of sales. One application of our technology is the development of live vaccines that are delivered to a specific mucosal niche where they can colonize and thereby present antigens to the immune system and produce local immunity at the site where the corresponding pathogen may attempt to enter. Since the proprietary expression pathway that we use is conserved in essentially all Gram-positive bacteria, this should allow the same strategy to be employed in the development of veterinary vaccines. A commensal bacterium can be isolated from the mucosa of the target species, engineered to express a desired antigen and then reintroduced to the species in order to produce immunity against subsequent infection by the corresponding pathogen. Examples of potential targets for this technology in the area of animal health include prevention of salmonid aquaculture disease problems or canine papilloma virus infections. Mucosal Vaccines Development of our mucosal vaccine candidates involves: (i) identifying a suitable immunizing antigen from a pathogen; (ii) selecting a commensal that naturally colonizes the mucosal point of entry for that pathogen; and (iii) genetically engineering the commensal to express the antigen on its surface for subsequent delivery to the target population. Strep Throat Vaccine Candidate. Until the age of 15, many children suffer from recurrent strep throat infections. Up to three percent of ineffectively treated strep throat cases progress to rheumatic fever, a debilitating heart disease, which worsens with each succeeding streptococcal infection. Since the advent of penicillin therapy, rheumatic fever in the United States has experienced a dramatic decline. However, in the last two decades, rheumatic fever has experienced a resurgence in the United States. Part of the reason for this is the latent presence of this organism in children who do not display symptoms of a sore throat, and, therefore, remain untreated and at risk for development of rheumatic fever. Based on data from the Centers for Disease Control and Prevention, there are five to 10 million cases of pharyngitis due to group A streptococcus in the United States each year. There are over 32 million children in the principal age group targeted by us for vaccination. Worldwide, it is estimated that one percent of all school age children in the developing world have rheumatic heart disease. Additionally, despite the relative ease of treating strep throat with antibiotics, the specter of antibiotic resistance is always present. In fact, resistance to erythromycin, the second line antibiotic in patients allergic to penicillin, has appeared in a number of cases. We believe that the reason no vaccine for strep throat has been developed is because of problems associated with identifying an antigen that is common to the more than 120 different serotypes of group A streptococcus, the bacterium that causes the disease. We have licensed from Rockefeller a proprietary antigen which is common to most types of group A streptococcus, including types that have been associated with rheumatic fever. When this antigen was orally administered to animals, it was shown to provide protection against multiple types of group A streptococcal infection. Using this antigen, we are seeking to develop a mucosal vaccine for strep throat. SIGA has taken a parallel vaccine development track with two formulations of the cross-protective streptococcal antigen. One approach expresses the strep throat antigen on the surface of the commensal bacterium, Streptococcus gordonii, which lives on the surface of the teeth and gums. Pre-clinical research in mice and rabbits has established the ability of this vaccine candidate to colonize and induce both a local and systemic immune response. The other candidate uses a subunit (purified protein) approach, in which the antigen is delivered intranasally with a mucosal adjuvant (enhances the immune response). Like the commensal approach, the subunit approach has provided significant protection in mice from challenges by multiple serotypes. We are collaborating with the National Institutes of Health ("NIH") and the University of Maryland Center for Vaccine Development on the clinical development of this vaccine candidate. In cooperation with the NIH we filed an Investigational New Drug Application ("IND") with the United States Food and Drug Administration (the "FDA") in December 1997. The first stage of these clinical trials, using the commensal delivery system without the strep throat antigen, were completed at the University of Maryland in 2000. The study showed the commensal delivery system to be well- 7

tolerated and that it spontaneously eradicated or was easily eradicated by conventional antibiotics. A second clinical trial of the commensal delivery system without the strep throat antigen was initiated in 2000 at the University of Maryland. The study was completed in January 2002 and the results corroborated the results of the earlier study regarding tolerance and spontaneous eradication. Further development continues principally on the subunit approach, which is currently in pre-clinical studies. In the U.S. there are about 19 million children aged 2 to 6 years who could be candidates to receive such a vaccine at the time of its introduction and then around 4 million babies born each year to be protected. Assuming a charge of $25 per dose and three doses needed for protection, there could be a potential market for a strep throat vaccine of $1.4 billion to immunize the entire U.S. population of 2 to 6 year olds and, thereafter, $300 million per year to maintain immunization in new births. STD Vaccine Candidates. One of the great challenges in vaccine research remains the development of effective vaccines to prevent sexually transmitted diseases ("STDs"). Two principal pathogens that are transmitted via this route are chlamydia, the most common bacterial STD, and Neisseria, the causative agent of gonorrhea. To date, a great deal of effort has been expended, without appreciable success, to develop effective injectable prophylactic vaccines versus these pathogens. Given that both of these pathogens enter the host through the mucosa, we believe that induction of a vigorous mucosal response to certain bacterial antigens may protect against acquisition of the initial infection. To test this hypothesis, we have expressed newly discovered antigens from these pathogens in our proprietary mucosal vaccine delivery system. These live genetically engineered vaccines will be delivered to animals and tested for local and systemic immune response induction, and whether these responses can block subsequent bacterial infections. We have licensed technology from Oregon State University and Washington University in support of our chlamydia and Neisseria programs, respectively. In February 2000 we entered into an option agreement with the Ross Products Division of Abbott Laboratories ("Ross"), which will provide funding for further development of an STD vaccine product. The original research program was completed in late 2001 and additional work was performed into 2003, however the additional work could not be completed due to the inability of one of our sub-contractors to perform. As a result, we gave Ross notice of termination on January 26, 2004 and all rights to the technology reverted to us. Chlamydia is the leading sexually transmitted disease in the U.S., with an estimated 4 million cases occurring annually. Up to $2.4 billion is spent annually on the treatment of infections from this pathogen, with the greatest percentage of this cost directed toward the therapy of chlamydial infection in women. Vaginal infection with C. trachomatis can progress to pelvic inflammatory disease, resulting in infertility, or may result in ectopic pregnancies. In addition, new evidence has linked C. trachomatis infection with an increased incidence of cervical cancer. The target population for STD vaccines is likely to be 12 to 18 years of age. There are currently 27.5 million such individuals in the U.S., with around 4 million entering this age group annually. Once again, assuming $25 per dose and three doses to complete immunization, there could be a potential market for a C. trachomatis vaccine of $2 billion to immunize the entire U.S. population of 12 to 18 year olds and, thereafter, $300 million per year to maintain immunization in those entering this age group. Mucosal Vaccine Delivery System We are developing our proprietary mucosal vaccine delivery system, which is a component of our vaccine program, for license to other vaccine developers. Our commensal vaccine candidates utilize Gram-positive bacteria to deliver antigens. We are using proprietary technology to anchor antigens from a wide range of infectious organisms, both viral and bacterial, to the surface protein anchor region of a variety of commensal organisms. By combining a specific antigen with a specific commensal, we believe that vaccines can be tailored to both the target pathogen and its mucosal point of entry. We have developed several genetic methods for recombining foreign sequences into the genome of Gram-positive bacteria at a number of non-essential sites. Various parameters have been tested and optimized to improve the level of foreign protein expression and its immunogenicity. In pre-clinical studies, genetically engineered commensals have been implanted into the oral cavities of several animal species with no observed deleterious 8

effects. The introduced vaccine strains have taken up residence for prolonged periods of time and induce both a local mucosal (IgA) as well as a systemic immune response (IgG and T-cell). We have completed two early stage clinical evaluations of our mucosal vaccine delivery system based on the commensal bacterium, S. gordonii. These clinical studies were designed to test the safety of the formulation, to monitor the extent and duration of colonization of the nasal and oral cavities and to determine if the delivery system could be eradicated at the end of the study with a regimen of conventional antibiotics. A total of 47 volunteers between the ages of 18 and 40 completed the first study, performed in the United Kingdom, in which S. gordonii was delivered to the nasal passage and oral cavity. A total of 60 volunteers completed a second study which was conducted at the University of Maryland as part of our strep throat vaccine program as described above. The results of the studies indicated the delivery system was well-tolerated and that the delivery system spontaneously eradicated or was easily eradicated by conventional antibiotics. The ongoing clinical studies at the University of Maryland are also designed to evaluate S. gordonii as a commensal bacterial delivery system for our vaccine targeting strep throat. Experiments are currently underway to optimize and test the vaccine formulation prior to initiating Phase I human trials with the recombinant commensal vector based vaccine. Surface Protein Expression System Our proprietary SPEX system uses the protein export and anchoring pathway of Gram-positive bacteria as a means to facilitate the production and purification of biopharmaceutical proteins. We have developed vectors which allow foreign genes to be inserted into the chromosome of Gram-positive bacteria in a manner such that the encoded protein is synthesized, transported to the cell surface and secreted into the medium. This system has been used to produce milligram quantities of soluble antigenically authentic protein that can be easily purified from the culture medium by affinity chromatography. We have recently used the SPEX system to obtain large quantities of pure M protein subunit antigen for preclinical studies. We believe this technology can be extended to a variety of different antigens and enzymes. We have commenced yield optimization and process validation of this system. This program is designed to transfer the method from a laboratory scale environment to a commercial production facility. Our business strategy is to license this technology on a non-exclusive basis for a broad range of applications. Immunological Bioinformatics With our acquisition of substantially all the assets of Plexus Vaccine Inc. a California corporation, on May 23, 2003, we believe that we possess rational vaccine design capability with which to develop both therapeutic and prophylactic vaccines against either traditional human health threats or agents of biological warfare. This capability includes an artificial neural net algorithm intended for the analysis of genomic sequences and the prediction of human T-call epitopes, and structural biology modeling intended for the identification of B-cell epitopes and their delivery in virus like particles. As proof-of-principle, we are employing these technologies to formulate and test a vaccine candidate for severe acute respiratory syndrome, or SARS. Collaborative Research and Licenses We have entered into the following license agreements and collaborative research arrangements: Rockefeller University. In accordance with an exclusive worldwide license agreement with Rockefeller, we have obtained the right and license to make, use and sell mucosal vaccines based on gram-positive organisms and products for the therapy, prevention and diagnosis of diseases caused by streptococcus, staphylococcus and other organisms. The license covers two issued U.S. patents and one issued European patent, as well as 11 pending U.S. patent applications and corresponding foreign patent applications. The issued United States patents expire in 2005 and 2014, respectively. The agreement generally requires us to pay royalties on sales of products developed from the licensed technologies, and fees on revenues from sublicensees, where applicable, and we are responsible for the costs of filing and prosecuting patent applications. The agreement also requires us to pay 15% of certain milestone payments we receive from Wyeth to Rockefeller, if any, under our collaborative and license agreement with Wyeth. Accordingly, under the agreement, which is our only agreement that requires us to make milestone 9

payments, we could be required to make milestone payments to Rockefeller of up to an aggregate amount of approximately $1.1 million. To date, we have not received any milestone payments from Wyeth that would require us to make a payment to Rockefeller. The primary potential products from this collaboration are the strep vaccine and the broad spectrum antibiotic. Under the agreement, we paid the university approximately $850,000 to support research at Rockefeller. The agreement to fund research has ended and no payments have been made to the university since the year ended December 31, 1999. Under the agreement we are obligated to pay Rockefeller a royalty on net sales by SIGA at rates between 2.5% and 5% depending on product and amount of sales. On sales by any sub-licensee, we will pay Rockefeller a royalty of 15% of anything we receive. The term of the agreement is for the duration of the patents licensed. As we do not currently know when any patents pending or future patents will expire, we cannot at this time determine the term of this agreement. At the end of that term of the agreement, we have the right to continue to practice the then existing technical information as a fully paid, perpetual license. The agreement can be terminated earlier if we are in breach of the provisions of the agreement and do not cure the breach in the allowed cure period. We are compliant in all our obligations under the agreement. Oregon State University. Oregon State University ("OSU") is also a party to our license agreement with Rockefeller, whereby we have obtained the right and license to make, use and sell products for the therapy, prevention and diagnosis of diseases caused by streptococcus. Pursuant to a separate research support agreement with OSU, we provided funding for sponsored research through December 31, 1999, with exclusive license rights to all inventions and discoveries resulting from this research. At this time, no additional funding is contemplated under this agreement, however, we retain the exclusive licensing rights to the inventions and discoveries that may arise from this collaboration. The term of the agreement is for the duration of the patents licensed. As we do not currently know when any patents pending or future patents will expire, we cannot at this time determine the term of this agreement. The agreement can be terminated earlier if we are in breach of the provisions of the agreement and do not cure the breach in the allowed cure period. We are compliant in all our obligations under the agreement. During 1999, we acquired an option to enter into a license with OSU in which we will acquire the rights to certain technology pertaining to the potential development of a chlamydia vaccine. In February 2000, we exercised our option and pursuant to an exclusive license agreement dated March 2000, we have made payments to OSU of approximately $25,000 as part of our obligation under the option. In September 2000, we entered into a subcontract with OSU. The contract is for a project which is targeted towards developing novel antiviral drugs capable of preventing disease and pathology for Smallpox in the event this pathogen were to be used as an agent of bioterrorism. The project is being funded by a grant from the NIH. The basic virology aspects of the project will be conducted at OSU and the drug development will be performed by us under the subcontract. The budget for the subcontract work will be negotiated on a year by year basis with OSU depending on the progress of the program and funding available. In the year ended December 31, 2001 we recognized revenue of $15,000. On October 5, 2001 the agreement was extended through August 31, 2002. For the period ended December 31, 2002 we recognized $75,000 in revenue. The agreement was extended again through August 31, 2003. The sub-contract is on a year to year renewal. Through December 31, 2003 we received a total of $130,000 under the agreement. During the year ended December 31, 2003 work under the subcontract was completed. Wyeth. We have entered into a collaborative research and license agreement with Wyeth in connection with the discovery and development of anti-infectives for the treatment of gram-positive bacterial infections. Pursuant to the agreement, Wyeth provided funding for a joint research and development program, subject to certain milestones, through September 30, 1999 and is responsible for additional milestone payments. In May 2001, we entered into an amendment to the July 1, 1997 agreement. The amendment extended the term of the original agreement to September 30, 2001. The extension provided for Wyeth to continue to pay us at a rate of $450,000 per year through the term of the amended agreement. During the term of the agreement as amended, we received $787,500 from Wyeth to support work performed by SIGA under the agreement and $237,500 for achieving a research milestone. For the year ended December 31, 2001 we recognized revenue of $1,025,000. The agreement to fund additional research was not extended beyond September 30, 2001. Wyeth is obligated to make milestone payments to us as any product developed progresses through the FDA approval process under our agreement with Wyeth, which is the only agreement pursuant to which we are entitled to receive milestone payments. For product developed we could receive up to approximately $13 million in 10

milestone payments for approval of the product in the U.S. and Japan. We would also receive royalty payments of 2% on the first $300,000 of cumulative licensed product sales, 4% on annual sales up to $100 million, 6% on annual sales between $100 million and $250 million and 8% on annual sales above $250 million. The license will expire on the earlier of 10 years or the last to expire issued patent. Wyeth has the right to terminate the agreement early, on ninety days written notice. If terminated early, all rights granted to Wyeth revert to SIGA except with respect to any compound identified by Wyeth as of the date of termination and subject to the milestone and royalty obligations of the agreement. National Institutes of Health. We have entered into a clinical trials agreement with the NIH pursuant to which the NIH, with our cooperation, will conduct clinical trials of our strep throat vaccine candidate. The agreement will fund trials through Phase II of the FDA approval process. To date, two Phase I clinical trials have been conducted for the strep vaccine delivery system. We are working to optimize and test the vaccine formulation prior to initiating Phase I clinical trials with the recombinant commensal vector based vaccine. The agreement may be terminated unilaterally by the parties upon sixty days prior notice. If terminated we will receive copies of all data, reports and other information related to the trials and any unused vaccine. In May, August and September 2000, we were awarded three Phase I Small Business Innovation Research ("SBIR") grants from the NIH in the amounts of $26,000, $96,000 and $125,000 respectively. The grants were for the periods May 3, 2000 to August 31, 2000, August 1, 2000 to January 31, 2001, and September 15, 2000 to March 14, 2001 respectively, and supported our antibiotic and vaccine development programs. In June 2002, we received a Phase II SBIR grant for approximately $865,000. The grant was for the two year period beginning June, 1, 2002 and ending May 31, 2004. For the years ending December 31, 2003 and, 2002, we have recognized revenue from the grants of $388,000 and $270,000, respectively. As part of our operational strategy we routinely submit grants to the NIH. There is no assurance that we will receive additional grants. Washington University. In February 1998, we entered into a research collaboration and worldwide license agreement with Washington University pursuant to which we obtained the right and license to make, use and sell antibiotic products based on gram-negative technology for all human and veterinary diagnostic and therapeutic uses. The license covered five pending United States patent applications and corresponding foreign patent applications. The agreement generally required us to pay royalties on sales of products developed from the licensed technologies and fees on revenues from sublicensees, where applicable, and we were responsible for certain milestone payments and for the costs of filing and prosecuting patent applications. Pursuant to the agreement, we agreed to provide funding to Washington University for sponsored research through February 6, 2001, with exclusive license rights to all inventions and discoveries resulting from this research. During 1999, a dispute arose between the parties regarding their respective performance under the agreement. In February 2000, the parties reached a settlement agreement and mutual release of their obligations under the research collaboration agreement. Under the terms of the settlement, we are released from any further payments to Washington University and have disclaimed any rights to the patents licensed under the original agreement. As part of the settlement agreement, we entered into a non-exclusive license to certain patents covered in the original agreement. SIGA and Washington University will share equally the responsibility for the administration and the expenses for the prosecution of patent applications and /or patents in the agreement. The collaboration is for the gram-negative product opportunity. We will receive licensing revenue from Washington University that derive from the commercialization of products covered by patent rights of the agreement. The royalty will be 20% of the first $400,000 received and 10% of the next $1,000,000 received with a total payment of licensing revenues to us not to exceed $500,000. The term of our agreement with Washington is for the duration of the patents and a number of pending patents. As we do not currently know when any patents pending or future patents will expire, we cannot at this time definitively determine the term of this agreement. The agreement cannot be terminated unless we fail to pay our share of the joint patent costs for the technology licensed. We have currently met all our obligations under this agreement. Abbott Laboratories. In March 2000, we entered into an agreement with the Ross Products Division of Abbott Laboratories ("Ross"). The agreement grants Ross an exclusive option to negotiate an exclusive license to certain SIGA technology and patents in addition to certain research development services. In exchange for research services and the option, Ross was obligated to pay us $120,000 in three installments of $40,000. The first payment of $40,000 was received in March 2000 and was recognized ratably, over the term of the arrangement. The 11

remaining installments are contingent upon meeting certain milestones under the agreement and will be recognized as revenue upon completion and acceptance of such milestones. The first milestone was met, and we received an additional payment of $40,000 in the quarter ended September 30, 2000. During the years ended December 31, 2001 and 2000, we recognized revenue in the amount of $45,000 and $80,000, respectively. The development agreement was for the sexually transmitted disease product opportunity. The research program was completed in late 2001 and additional work was performed into 2003, however the additional work could not be completed due to the inability of one of our sub-contractors to perform. As a result, we gave Ross notice of termination on January 26, 2004 and all rights to the technology reverted to us. Regents of the University of California. In December 2000, we entered into an exclusive license agreement and a sponsored research agreement with the Regents of the University of California ("Regents"). Under the license agreement we obtained rights for the exclusive commercial development, use and sale of products related to certain inventions in exchange for a non-refundable license issuance fee of $15,000 and an annual maintenance fee of $10,000. As of December 31, 2003 we have made payments of approximately $80,625 under the license. In the event that we sub-license the license, we must pay Regents 15% of all royalty payments made to SIGA. Under the agreement, we will also pay Regents 15% of all royalties received from Wyeth. The agreement applies to the gram positive product opportunity and our collaborative agreement with Wyeth. The term of the agreement is until the expiration of the last-to-expire patent licensed under this agreement. The agreement may be terminated by Regents if we default on any of our obligations, the agreement with Wyeth is terminated and a substitute agreement is not entered into or if we give notice that we do not intend to make product from the licensed technology. We have currently met all our obligations under this agreement. TransTech Pharma, Inc. In October 2002, we entered into a drug discovery collaboration agreement with TransTech Pharma, Inc. ("TransTech Pharma"). Under the agreement, SIGA and TransTech Pharma collaborate on the discovery, optimization and development of lead compounds to therapeutic agents. The costs of development are shared. SIGA and TransTech Pharma would share revenues generated from licensing and profits from any commercialized product sales. The agreement will be in effect until terminated by the parties or upon cessation of research or sales of all products developed under the agreement. If the agreement is terminated, relinquished or expires for any reason certain rights and benefits will survive the termination. Obligations not expressly indicated to survive the agreement will terminate with the agreement. No revenues were recognized in 2003 and 2002 from this collaboration. Intellectual Property and Proprietary Rights Protection of our proprietary compounds and technology is essential to our business. Our policy is to seek, when appropriate, protection for our lead compounds and certain other proprietary technology by filing patent applications in the United States and other countries. We have licensed the rights to seven issued U.S. patents and three issued European patents. These patents have varying lives and they are related to the technology licensed from Rockefeller University for the Strep and Gram-positive products. We have two additional patent applications in the U.S. and two applications in Europe relating to this technology. We are joint owner with Washington University of seven issued patents in the U.S. and two in Europe. In addition, there are four co-owned U.S. patent applications. These patents are for the technology used for the gram-negative product opportunities. We are also exclusive owner of one U.S. patent and one PCT application that relates to our DegP product opportunities. The following are our patent positions as of December 31, 2003. 12

- ------------------------------------------------------------------------------------------------------------------ Number Exclusively Number Licensed Number Number Co- from Univ. Exclusively Exclusively Exclusively of Licensed Licensed Licensed Copenhagen from Number from with and Danish Oregon Exclusively Number Patent Rockefeller Washington Technical State Licensed Owned by Expiration PATENTS Univ. Univ. University University from UCLA SIGA Dates - ------------------------------------------------------------------------------------------------------------------ 2013, 2014 (3), 2015 (4), U.S. 7 7 1 2016 (2), 2017, 2019 (2), 2020,2021 - ------------------------------------------------------------------------------------------------------------------ 2004,2009 2014 (2), Australia 5 2 1 2015,2016 2019,2020 - ------------------------------------------------------------------------------------------------------------------ Canada 3 1 2004,2010 2014,2019 - ------------------------------------------------------------------------------------------------------------------ 2004,2009 Europe 3 2 2010,2014 2020 - ------------------------------------------------------------------------------------------------------------------ Hungary 2 2013,2016 - ------------------------------------------------------------------------------------------------------------------ 2004 (2), Japan 4 2 2010,2012 2014,2020 - ------------------------------------------------------------------------------------------------------------------ Mexico 1 2016 - ------------------------------------------------------------------------------------------------------------------ New Zealand 1 2016 - ------------------------------------------------------------------------------------------------------------------ APPLICATIONS - ------------------------------------------------------------------------------------------------------------------ U.S. applications 2 4 1 2 1 3 - ------------------------------------------------------------------------------------------------------------------ U.S. provisionals 5 - ------------------------------------------------------------------------------------------------------------------ Danish 1 provisionals - ------------------------------------------------------------------------------------------------------------------ PCT 1 3 - ------------------------------------------------------------------------------------------------------------------ Australia 1 1 1 1 - ------------------------------------------------------------------------------------------------------------------ China 1 - ------------------------------------------------------------------------------------------------------------------ Canada 3 1 1 1 - ------------------------------------------------------------------------------------------------------------------ Europe 2 1 1 1 - ------------------------------------------------------------------------------------------------------------------ Finland 1 - ------------------------------------------------------------------------------------------------------------------ Japan 3 1 1 - ------------------------------------------------------------------------------------------------------------------ We also rely upon trade secret protection for our confidential and proprietary information. No assurance can be given that other companies will not independently develop substantially equivalent proprietary information and techniques or otherwise gain access to our trade secrets or that we can meaningfully protect our trade secrets. 13

Government Regulation Regulation by governmental authorities in the United States and other countries will be a significant factor in the production and marketing of any biopharmaceutical products that we may develop. The nature and the extent to which such regulations may apply to us will vary depending on the nature of any such products. Virtually all of our potential biopharmaceutical products will require regulatory approval by governmental agencies prior to commercialization. In particular, human therapeutic products are subject to rigorous pre-clinical and clinical testing and other approval procedures by the FDA and similar health authorities in foreign countries. Various federal statutes and regulations also govern or influence the manufacturing, safety, labeling, storage, record keeping and marketing of such products. The process of obtaining these approvals and the subsequent compliance with appropriate federal and foreign statutes and regulations requires the expenditure of substantial resources. In order to test clinically, produce and market products for diagnostic or therapeutic use, a company must comply with mandatory procedures and safety standards established by the FDA and comparable agencies in foreign countries. Before beginning human clinical testing of a potential new drug, a company must file an IND and receive clearance from the FDA. This application is a summary of the pre-clinical studies that were conducted to characterize the drug, including toxicity and safety studies, as well as an in-depth discussion of the human clinical studies that are being proposed. The pre-marketing program required for approval by the FDA of a new drug typically involves a time-consuming and costly three-phase process. In Phase I, trials are conducted with a small number of patients to determine the early safety profile, the pattern of drug distribution and metabolism. In Phase II, trials are conducted with small groups of patients afflicted with a target disease in order to determine preliminary efficacy, optimal dosages and expanded evidence of safety. In Phase III, large scale, multi-center comparative trials are conducted with patients afflicted with a target disease in order to provide enough data for statistical proof of efficacy and safety required by the FDA and others. The FDA closely monitors the progress of each of the three phases of clinical testing and may, in its discretion, reevaluate, alter, suspend or terminate the testing based on the data that have been accumulated to that point and its assessment of the risk/benefit ratio to the patient. Estimates of the total time required for carrying out such clinical testing vary between two and ten years. Upon completion of such clinical testing, a company typically submits a New Drug Application ("NDA") or Product License Application ("PLA") to the FDA that summarizes the results and observations of the drug during the clinical testing. Based on its review of the NDA or PLA, the FDA will decide whether to approve the drug. This review process can be quite lengthy, and approval for the production and marketing of a new pharmaceutical product can require a number of years and substantial funding; there can be no assurance that any approvals will be granted on a timely basis, if at all. Once the product is approved for sale, FDA regulations govern the production process and marketing activities, and a post-marketing testing and surveillance program may be required to monitor continuously a product's usage and its effects. Product approvals may be withdrawn if compliance with regulatory standards is not maintained. Other countries in which any products developed by us may be marketed could impose a similar regulatory process. Commercialization of animal health products can be accomplished more rapidly than human health products. Unlike the human market, potential vaccine or therapeutic products can be tested directly on the target animal as soon as the product leaves the research laboratory. The data collected in these trials is submitted to the U.S. Department of Agriculture for review and eventual product approval. Competition The biotechnology and pharmaceutical industries are characterized by rapidly evolving technology and intense competition. Our competitors include most of the major pharmaceutical companies, which have financial, technical and marketing resources significantly greater than ours. Biotechnology and other pharmaceutical competitors include Acambis, Bavarian Nordic AS, Corixa Corporation, Cubist Pharmaceuticals, Inc., Dynport Vaccine Company, Enanta Pharmaceuticals, Essential Therapeutics, Genesoft Pharmaceuticals, Genome Therapeutics Corporation, ID Biomedical Corporation, Microbiotix, Inc., Paratek Pharmaceuticals, Quorex 14

Pharmaceuticals, Theravance, Inc., Vircuron Pharmaceuticals, Inc., and ViroPharma, Inc. Academic institutions, governmental agencies and other public and private research organizations are also conducting research activities and seeking patent protection and may commercialize products on their own or through joint venture. There can be no assurance that our competitors will not succeed in developing products that are more effective or less costly than any which are being developed by us or which would render our technology and future products obsolete and noncompetitive. Human Resources and Facilities As of March 22, 2004 we had 27 full time employees. None of our employees are covered by a collective bargaining agreement and we consider our employee relations to be good. Availability of Reports and Other Information Our website is www.siga.com. We make available on this website, free of charge, our annual, quarterly and current reports, corporate governance documents, including our code of ethics, and other documents filed by us with the Securities and Exchange Commission as soon as reasonably practicable after the filing date. Item 2. Properties Our headquarters are located in New York City, our research and development facilities are located in Corvallis, Oregon and our bioinformatics operations are located in San Diego, CA. In New York, we lease approximately 1,600 square feet under a lease that expires in November 2007. In Corvallis, we lease approximately 10,000 square feet under a lease that expires in December 2004. In San Diego we have a sub-lease, renewable monthly for 1,800 feet of space. Item 3. Legal Proceedings SIGA is not a party, nor is its property the subject of, any pending legal proceedings other than routine litigation incidental to its business. Item 4. Submission of Matters to a Vote of Security Holders At our Annual Meeting of Stockholders held on January 8, 2004, our stockholders re-elected to our board each member of our board of directors and ratified our selection of independent auditors: The following nominees were elected to our board of directors upon the following votes: Director Votes For Votes Withheld Donald G. Drapkin 15,978,957 76,923 Roger Brent, Ph.D 15,978,957 76,923 Charles Cantor, Ph.D 15,978,957 76,923 Thomas E. Constance 15,344,878 711,002 Bernard L. Kasten, Jr., M.D 15,957,957 97,923 Eric A. Rose, M.D 15,019,186 1,036,694 Mehmet C. Oz, M.D 14,774,323 1,281,557 Michael A. Weiner 15,590,741 465,119 Our stockholders ratified the selection of PricewaterhouseCoopers LLP as our independent auditors for the fiscal year ending December 31, 2003 by casting 15,976,115 votes in favor of this proposal, 45,165 votes against the proposal and 34,600 abstained. Our shareholders approved the completion of the sale of our common stock and warrants to MacAndrews & Forbes Holdings Inc. and approved affiliates by casting 6,538,691 votes in favor of this proposal, 224,874 votes against the proposal and 2,287,206 abstained. 15

Our shareholders approved an amendment to the SIGA Technologies, Inc. Amended and Restated 1996 Incentive and Non-Qualified Stock Option Plan to increase the maximum number of shares of common stock available for issuance under the Plan from 7,500,000 to 10,000,000 by casting 7,786,536 votes in favor of this proposal, 1,208,639 votes against the proposal and 55,600 abstained. 16

PART II Item 5. Market For Registrant's Common Equity and Related Stockholder Matters Price Range of Common Stock Our common stock has been traded on the Nasdaq SmallCap Market since September 9, 1997 and trades under the symbol "SIGA." Prior to that time there was no public market for our common stock. The following table sets forth, for the periods indicated, the high and low closing sales prices for the common stock, as reported on the Nasdaq SmallCap Market. Price Range 2002 High Low ----- ----- First Quarter .............................. $2.91 $2.01 Second Quarter ............................. $2.63 $0.81 Third Quarter .............................. $1.39 $0.65 Fourth Quarter ............................. $2.15 $0.65 2003 High Low ----- ----- First Quarter .............................. $1.49 $1.02 Second Quarter ............................. $1.91 $1.09 Third Quarter .............................. $2.13 $1.61 Fourth Quarter ............................. $2.60 $1.80 As of March 22, 2004, the closing bid price of our common stock was $2.28 per share. There were 107 holders of record as of March 22, 2004. We believe that the number of beneficial owners of our common stock is substantially greater than the number of record holders, because a large portion of common stock is held in broker "street names." We have paid no dividends on our common stock and we do not expect to pay cash dividends in the foreseeable future. We are not under any contractual restriction as to our present or future ability to pay dividends. We currently intend to retain any future earnings to finance the growth and development of our business. Recent Sales of Unregistered Securities All of the following sales of unregistered securities were made without registration under the Securities Act in reliance upon the exemption from registration afforded under Section 4(6) of the Securities Act and Rule 506 of Regulation D promulgated thereunder. Accordingly, the transfer of the securities are subject to substantial restrictions. Securities were only purchased by "Accredited Investors" as that term is defined under Rule 501 of Regulation D. Proceeds from the offerings were used for general working capital purposes. In October 2003, MacAndrews & Forbes Holdings Inc. and its permitted assignees exercised their option to invest an additional $9,000,000 in us under the terms of the agreement signed in August 2003, as amended in October 2003. Upon exercise of the option we received gross proceeds of $2,159,405 in exchange for 1,499,587 shares of common stock at a price of $1.44 per share and warrants to purchase 749,794 shares of common stock. The warrants have an initial exercise price of $2.00 per share and a term of seven years. The sale of the remaining 4,750,413 shares of common stock and warrants to purchase 2,375,206 shares of common stock at an exercise price of $2.00 per share on the same terms was subject to shareholder approval. On January 8, 2004, at a meeting of shareholders, the transaction was approved, the additional $6,840,595 of gross proceeds were received and the common shares and warrants were issued. 17

In August 2003, we entered into an agreement with MacAndrews & Forbes whereby MacAndrews & Forbes and its permitted assignees initially invested $1,000,000 in SIGA. Upon the consummation of the transaction, we received gross proceeds of $1,000,000 in exchange for 694,444 shares of our common stock at a price of $1.44 per share and warrants to purchase 347,222 shares of common stock. The warrants have an initial exercise price of $2.00 per share and have a term of seven years. MacAndrews & Forbes and its permitted assignees also received an option, exercisable through October 13, 2003, to invest up to an additional $9,000,000 in SIGA on the same terms. In June 2003, the Company raised gross proceeds of $1.5 million in a private offering of 1,250,000 shares of common stock. In connection with the offering the Company issued warrants to purchase 625,000 shares of the Company's common stock to placement agents. The warrants are exercisable at a price of $2.00 per share and have a term of five years. In May 2003, we acquired substantially all of the assets of Plexus in exchange for 1,950,000 shares of our common stock and the assumption of certain liabilities, including promissory notes for loans we previously made to Plexus for $50,000 and $20,000. In December 2002 and January 2003, we completed a private placement of 34 units consisting of 1.7 million shares of common stock to a group of private investors. The gross proceeds from the offering were $1,865,000 with net proceeds to SIGA of approximately $1,682,000. In October 2002, we completed a private placement of units consisting of an aggregate of 1,037,500 shares of common stock and warrants to purchase 518,750 shares of common stock at an exercise price of $2.25 per share to a group of private investors. The offering yielded net proceeds of approximately $935,000. Item 6. Management's Discussion and Analysis of Financial Condition and Results of Operations The following discussion should be read in conjunction with our financial statements and notes to those statements and other financial information appearing elsewhere in this Annual Report. In addition to historical information, the following discussion and other parts of this Annual Report contain forward-looking information that involves risks and uncertainties. Overview Since our inception in December 1995, we have been principally engaged in the research and development of novel products for the prevention and treatment of serious infectious diseases, including products for use in the defense against biological warfare agents such as Smallpox. The effort to develop a drug for Smallpox is being aided by a $1.6 million contract with the U.S. Army which began in January 2003. We are developing technology for the mucosal delivery of our vaccines to activate the immune system at the mucus lined surfaces of the body, the mouth, the nose, the lungs and the gastrointestinal and urogenital tracts, the sites of entry for most infectious agents. Our anti-infectives programs are aimed at the increasingly serious problem of drug resistance, and they are designed to block the ability of infectious agents to attach to human tissue, the first step in the infection process. In May 2003, we acquired substantially all the assets of Plexus Vaccine Inc. ("Plexus"). Plexus is a bioinformatics company that develops vaccines using its proprietary technology. The acquisition will expand our capabilities in biological warfare defense research and allow for the development of vaccines for Smallpox, anthrax, plague, botulism and other biological pathogens. The acquisition will also facilitate development of vaccines for traditional human health targets. This transaction will have an impact on our cash flows based on our ability to integrate the combined companies. We do not have commercial biomedical products, and we do not expect to have such products for several years, if at all. We believe that we will need additional funds to complete the development of our biomedical products. Our plans with regard to these matters include continued development of our products as well as seeking additional research support funds and financial arrangements. Although we continue to pursue these plans, there is no assurance that we will be successful in obtaining sufficient financing on terms acceptable to us. The financial 18

statements do not include any adjustments that might result from the outcome of this uncertainty. Management believes it has sufficient funds to support operations for the next 12 months. Our biotechnology operations are run out of our research facility in Corvallis, Oregon and our bioinformatics activities are carried out at our office in San Diego, California. We continue to seek to fund a major portion of our ongoing vaccine and antibiotic programs through a combination of government grants and strategic alliances. While we have had success in obtaining strategic alliances and grants, no assurance can be given that we will continue to be successful in obtaining funds from these sources. Until additional relationships are established, we expect to continue to incur significant research and development costs and costs associated with the manufacturing of product for use in clinical trials and pre-clinical testing. It is expected that general and administrative costs, including patent and regulatory costs, necessary to support clinical trials and research and development will continue to be significant in the future. To date, we have not marketed, or generated revenues from the commercial sale of any products. Our biopharmaceutical product candidates are not expected to be commercially available for several years, if at all. Accordingly, we expect to incur operating losses for the foreseeable future. There can be no assurance that we will ever achieve profitable operations. Significant Accounting Policies Financial Reporting Release No. 60, requires all companies to include a discussion of critical accounting policies or methods used in the preparation of financial statements. Note 2 of the Notes to the Financial Statements includes a summary of the significant accounting policies and methods used in the preparation of our Financial Statements. The following is a brief discussion of the more significant accounting policies and methods used by us. In addition, Financial Reporting Release No. 67 was recently released by the SEC to require all companies to include a discussion to address, among other things, liquidity, off-balance sheet arrangements, contractual obligations and commercial commitments. Revenue Recognition The Company recognizes revenue in accordance with SEC Staff Accounting Bulletin No. 101, Revenue Recognition in Financial Statements, as amended ("SAB 101"). SAB 101 requires that four basic criteria must be met before revenue can be recognized: (1) persuasive evidence of an arrangement exists; (2) delivery has occurred or services rendered; (3) the fee is fixed or determinable; and (4) collectibility is reasonably assured. Under the provisions of SAB 101, the Company recognizes revenue from government research grants, contract research and development and progress payments as services are performed, provided a contractual arrangement exists, the contract price is fixed or determinable, and the collection of the resulting receivable is probable. Milestones, which generally are related to substantial scientific or technical achievement, are recognized as revenue when the milestone is accomplished. Income Taxes Income taxes are accounted for under the asset and liability method prescribed by Statement of Financial Accounting Standards No. 109, "Accounting for Income Taxes." Deferred income taxes are recorded for temporary differences between financial statement carrying amounts and the tax basis of assets and liabilities. Deferred tax assets and liabilities reflect the tax rates expected to be in effect for the years in which the differences are expected to reverse. A valuation allowance is provided if it is more likely than not that some or all of the deferred tax asset will not be realized. A full valuation has been taken on the deferred taxes as the Company has had recurring losses since inception and expects to have a net loss in the upcoming year. Business Combinations, Goodwill and Intangible Assets We account for business combinations in accordance with the provisions of Statement of Financial Accounting Standards No. 141, "Business Combinations" ("SFAS 141"). SFAS 141 requires business combinations completed after June 30, 2001, to be accounted for using the purchase method of accounting. It also specifies the types of acquired intangible assets required to be recognized and reported separately from goodwill. 19

We account for the impairment of goodwill in accordance with the provisions of Statement of Financial Accounting Standards No. 142 "Goodwill and Other Intangible Assets" ("SFAS 142"). Goodwill is not subject to amortization and is tested for impairment annually, or more frequently if events or changes in circumstances indicate that the asset may be impaired. The impairment test consists of a comparison of the fair value of goodwill with its carrying amount. If the carrying amount of goodwill exceeds its fair value, a second step of the goodwill impairment test shall be performed to measure the amount of impairment loss, if any. After an impairment loss is recognized, the adjusted carrying amount of goodwill is its new accounting basis. The annual impairment testing required under SFAS 142 requires management to make assumptions and judgments regarding the estimated fair value of the Company's goodwill. Such assumptions include the present value discount factor used to determine the fair value of a reporting unit, which is ultimately used to identify potential goodwill impairment. Such estimated fair values might produce significantly different results if other reasonable assumptions and estimates were to be used. We account for the impairment of long-lived assets such as non-compete agreements and research contracts in accordance with the provisions of Statement of Financial Accounting Standards No. 144 "Accounting for the Impairment or Disposal of Long-Lived Assets" ("SFAS 144"). SFAS 144 requires that long-lived assets be reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. The Company compares the carrying amount of the asset to the estimated undiscounted future cash flows expected to result from the use of the asset. If the carrying amount of the asset exceeds estimated expected undiscounted future cash flows, the Company records an impairment charge for the difference between the carrying amount of the asset and its fair value. Changes in events or circumstances to the Company that may affect long-lived assets include cancellations or terminations of research contracts or pending government research grants. Contractual Obligations, Commercial Commitments and Purchase Obligations As of December 31, 2003, our purchase obligations were immaterial. We lease certain facilities and office space under operating leases. Minimum future rental commitments under operating leases having non-cancelable lease terms in excess of one year are as follows: Year ended December 31, 2004 $ 193,237 2005 86,398 2006 87,737 2007 94,921 2008 19,416 Thereafter -- --------- Total $ 481,709 ========= Recent Accounting Pronouncements In December of 2003, the Staff of the Securities and Exchange Commission issued Staff Accounting Bulletin No. 104 (SAB 104), "Revenue Recognition", which supercedes SAB 101, "Revenue Recognition in Financial Statements". SAB 104's primary purpose is to rescind accounting guidance contained in SAB 101 related to multiple element revenue arrangements, superceded as a result of the issuance of EITF 00-21, "Accounting for Revenue Arrangements with Multiple Deliverables". While the wording of SAB 104 has changed to reflect the issuance of EITF 00-21, the revenue recognition principles of SAB 101 remain largely unchanged by the issuance of SAB 104. The adoption of SAB 104 did not have a material effect on the Company's results of operations, financial position or cash flows. In March of 2003, the Emerging Issues Task Force (EITF) issued EITF No. 00-21, "Accounting for Revenue Arrangements with Multiple Deliverables". EITF No. 00-21 addresses how to determine whether a revenue arrangement involving multiple deliverables contains more than one unit of accounting for revenue recognition purposes, and how consideration should be measured and allocated to the separate accounting units. EITF No. 00-21 applies to all deliverables within contractually binding arrangements in all industries, except to the 20

extent that a deliverable in a contractual arrangement is subject to other existing higher-level authoritative literature. EITF No. 00-21 became effective for revenue arrangements entered into after July 1, 2003. The adoption of EITF No. 00-21 did not have a material effect on the Company's financial position or results of operations. In December of 2003, the FASB revised its FASB Interpretation No. 46, "Consolidation of Variable Interest Entities" (FIN 46R). FIN 46R clarifies the application of Accounting Research Bulletin No. 51, "Consolidated Financial Statements". FIN 46R requires that a business enterprise review all of its legal structures used to conduct its business activities, including those to hold assets, and its majority-owned subsidiaries, to determine whether those legal structures are variable interest entities (VIEs) required to be consolidated for financial reporting purposes by the business enterprise. A VIE is a legal structure for which the holders of a majority voting interest may not have a controlling financial interest in the legal structure. FIN 46R provides guidance for identifying those legal structures and provides guidance for determining whether a business enterprise shall consolidate a VIE. FIN 46R requires that a business enterprise that holds a significant variable interest in a VIE make new disclosures in their financial statements. The Company is required to adopt the provisions of FIN 46R for its interim period ending March 31, 2004. The Company does not believe that it holds any interests in VIEs that would require consolidation or additional disclosures. In May of 2003, the FASB issued SFAS No. 150, "Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity". This Statement applies to certain financial instruments, including mandatorily redeemable financial instruments that, prior to SFAS No. 150 could have been accounted for as a component of equity. SFAS No. 150 requires that those instruments be classified as liabilities in statements of financial position. SFAS No. 150 also requires disclosures about alternative ways of settling the instruments and the capital structure of entities whose shares are all mandatorily redeemable. SFAS No. 150 is effective for these financial instruments entered into or modified after May 31, 2003. For these financial instruments entered into before May 31, 2003, SFAS No. 150 became effective for the interim period beginning July 1, 2003. The Company does not hold any financial instruments that are within the scope of SFAS No. 150. Accordingly, SFAS No. 150 did not have a material effect on the Company's results of operations or financial position. Results of Operations Year ended December 31, 2003 and December 31, 2002 Revenues from grants and research and development contracts were $731,743 for the year ended December 31, 2003 compared to $344,450 for the same period of 2002, an approximate 112% increase. The increase for the year ended December 31, 2003 from the prior year reflects $290,000 in revenue from the first year of our $1.6 million contract with the U.S. Army for our work on the development of a Smallpox drug. Revenue from our Phase II Small Business Innovation Research (SBIR) grant also increased. Revenue from the SBIR grant for the year ended December 31, 2003 was approximately $388,000, an approximate 44% increase over the year ended December 31, 2002. The SBIR grant, which is a two year grant for a total of $865,000, will end on May 31, 2004. Through December 31, 2003 a total of $658,000 of revenue was recognized from the grant. Selling, general and administrative expenses for the year ended December 31, 2003 were $2,646,586, an increase of approximately 44% from an expense of $1,838,470 for the year ended December 31, 2002. Of the $808,116 increase, approximately $553,000 was the result of higher consulting expenses associated with our marketing program to find additional sources of government grant and contract funding and increased investor relations efforts. Approximately $184,000 of the increase was the result of increased payroll expense reflecting the administrative employees who were added in connection with the acquisition of substantially all the assets of Plexus Vaccine Inc. ("Plexus"). In addition, the year ended December 31, 2003 included non-cash expenses of approximately $123,000 associated with the amortization of certain intangible assets acquired in the Plexus transaction. These increases were partially offset by lower legal and accounting fees. For the year ended December 31, 2002 legal and accounting fees were approximately $176,000 higher than the current year as the result of work done in the prior year on a proposed merger. Research and development expenses increased approximately 67% to $2,942,809 for the year ended December 31, 2003 from $1,766,368 for the same period in 2002. Approximately $504,000 of the increase was the result of approximately 64% higher payroll expense caused by the addition of Plexus R&D personnel as well as 21

additional staffing for our ongoing Smallpox and anti-infectives programs. For the year ended December 31, 2003 we recognized non-cash charges of approximately $262,000 for the amortization of certain intangible assets acquired from Plexus; no similar charges were recognized in the prior year. In addition, lab supply expenses were approximately $400,000, an increase of approximately 83% in the year ended December 31, 2003 from the prior year spending level of approximately $219,000. The increase reflects increased activity on our Smallpox and DegP programs. Sponsored research increased to approximately $315,000, an 82% increase from the prior year. The increase was due to payment for work being performed on former Plexus programs at a Danish University. All of our product programs are in the early stage of development except for the strep vaccine which is in Phase I clinical trials. At this stage of development, we cannot make estimates of the potential cost for any program to be completed or the time it will take to complete the project. For the year ended December 31, 2003, excluding non-cash charges, we estimate that we spent a total of approximately $2,322,000 on all our research programs: approximately $743,000, or 32% of the total for the development of the Smallpox antiviral; approximately $395,000, or 17% of the total on the strep vaccine; approximately $441,000, or 19% of the total on the DegP anti-infective; approximately $557,000, or 24% of the total on vaccines including those being developed under agreements acquired from Plexus; and approximately $186,000, or 8% of the total on other anti-infectives. For the year ended December 31, 2002, excluding non-cash charges, we estimate we spent a total of approximately $1,470,000 on all our product programs: approximately $515,000, or 35% of total for the strep vaccine program; approximately $294,000, or 20% of the total was for the Smallpox program; approximately $294,000, or 20% of the total was for the DegP anti-infectives program; approximately $147,000, or 10% of the total for other anti-infectives; and approximately $220,000, or 15% of the total was for other vaccine programs. We are working with TransTech Pharma on our Smallpox and SARS anti-viral products and our DegP broad spectrum anti-biotic. There is a high risk of non-completion of any program because of the lead time to program completion and uncertainty of the costs. Net cash inflows from any products developed from these programs is at least two to three years away. However, we could receive additional grants, contracts or technology licenses in the short-term. The potential cash and timing is not known and we cannot be certain if they will ever occur. The risk of failure to complete any program is high, as each is in the relatively early stage of development. Products for the biological warfare defense market, such as the Smallpox anti-viral, could be available for sale in two to three years. We believe the products directed toward this market are on schedule. We expect the future research and development cost of this program to increase as the potential products enter animal studies and safety testing. Funds for future development will be partially paid for by the contract we have with the U.S. Army, additional government funding and from future financing. If we are unable to obtain additional federal grants and contracts or funding in the required amounts, the development timeline for these products would slow or possibly be suspended. The clinical trials for our Strep vaccine through Phase II are being funded under an agreement with the NIH. The time to market for this product should be several years from now because of the nature of the FDA requirements for approval of a pediatric vaccine. We expect to fund the development of the Strep vaccine beyond the Phase II clinical trials through a corporate collaboration or from additional funding from debt or equity financings. We do not yet have a corporate partner for this product and there is no assurance that we will ever have one or that we will be able to raise the funds needed to go forward. If the funding is not available or the clinical trials are not successful, the program could be delayed or cancelled. We believe this product program is on schedule. Delay or suspension of any of our programs could have an adverse impact on our ability to raise funds in the future, enter into collaborations with corporate partners or obtain additional federal funding from contracts or grants. Patent preparation expenses for the year ended December 31, 2003 were $300,494 compared to $104,700 for the year ended December 31, 2002. The 187% increase was the result of increased costs of patent work required on the intellectual property acquired in the Plexus transaction, including foreign patent filings. For the year ended December 31, 2003, we incurred a loss on impairment of assets as a result of taking a non-cash charge of $137,000 to the intangible assets acquired in the Plexus transaction to reflect the termination of a research agreement. No similar charge was incurred in the prior year. Total operating loss for the year ended December 31, 2003 was $5,294,896, an approximate 57% increase from the $3,365,088 loss incurred for the year ended December 31, 2002. The increase in the loss is the result of higher general and administration expenses and research and development expenses as described above, partially 22

offset by higher revenues. Approximately 27% of the increase in the net loss was the result of non-cash charges incurred in the year ended December 31, 2003. Net interest income was $18,256 for the year ended December 31, 2003 compared to $34,061 for the year ended December 31, 2002. The approximate 46% decrease in net interest is the result of lower cash balances and interest yields in the year ended December 31, 2003 compared to prior year. Quarterly Results of Operations The following table sets forth selected unaudited quarterly statements of operations data, in dollar amounts and as percentages of net revenue, for the four quarters ended December 31, 2002 and for the four quarters ended December 31, 2003. This information has been prepared substantially on the same basis as the audited financial statements appearing elsewhere in this annual statement, and all necessary adjustments, consisting only of normal recurring adjustments, have been included in the amounts stated below to present fairly the unaudited quarterly results of operations data. The quarterly data should be read with our financial statements. 2002 ($ in 000's) Q1 Q2 Q3 Q4 ----- ------- ------- ------- Revenue ........................... $ 0 $ 139 $ 90 $ 115 SG&A ............................ $ 341 $ 668 $ 273 $ 556 % of Revenue .................. NA 481% 303% 483% R&D ............................... $ 357 $ 414 $ 424 $ 571 % of Revenue .................... NA 298% 471% 497% Patent Prep. Costs ................ $ 27 $ 18 $ 27 $ 33 % of Revenue .................... NA 13% 30% 29% Operating Loss .................... $ 725 $ 961 $ 634 $ 1,045 % of Revenue .................... NA 691% 704% 909% Net Loss .......................... $ 712 $ 951 $ 630 $ 1,038 % of Revenue .................... NA 684% 700% 902% Basic and diluted loss per share .. (0.07) (0.09) (0.06) (0.10) 2003 ($ in 000's) Q1 Q2 Q3 Q4 ----- ------- ------- ------- Revenue ........................... $ 205 $ 244 $ 176 $ 107 SG&A .............................. $ 560 $ 748 $ 684 $ 654 % of Revenue ...................... 273% 307% 389% 611% R&D ............................... $ 477 $ 643 $ 1,001 $ 822 % of Revenue ...................... 233% 264% 569% 768% Patent Prep. Costs ................ $ 56 $ 66 $ 65 $ 113 % of Revenue ...................... 27% 27% 37% 106% Operating Loss .................... $ 889 $ 1,214 $ 1,574 $ 1,619 % of Revenue ...................... 434% 498% 894% 1,513% Net Loss .......................... $ 882 $ 1,211 $ 1,571 $ 1,613 % of Revenue ...................... 430% 496% 892% 1,507% Basic and diluted loss per share .. (0.07) (0.09) (0.09) (0.09) Liquidity and Capital Resources As of December 31, 2003 we had $1,440,724 in cash and cash equivalents. In October 2003, MacAndrews & Forbes Holdings Inc. and its permitted assignees exercised their option to invest an additional $9,000,000 in us under the terms of the agreement signed in August 2003, as amended in October 2003. Upon exercise of the option, we received gross proceeds of $2,159,405 in exchange for 1,499,587 shares of common stock at a price of $1.44 per share and warrants to purchase 749,794 shares of common stock. 23

The warrants have an initial exercise price of $2.00 per share and a term of seven years. The sale of the remaining 4,750,413 shares of common stock and warrants to purchase 2,375,206 shares of common stock on the same terms was subject to shareholder approval. On January 8, 2004, at a meeting of shareholders, the transaction was approved, the additional $6,840,595 of gross proceeds were received and the common shares and warrants were issued. In August 2003, we entered into an agreement with MacAndrews & Forbes, whereby MacAndrews & Forbes and its permitted assignees initially invested $1,000,000 in SIGA. Upon consummation of the transaction, we received gross proceeds of $1,000,000 in exchange for 694,444 shares of our common stock at a price of $1.44 per share and warrants to purchase 347,222 shares of common stock. The warrants have an initial exercise price of $2.00 per share and have a term of seven years. MacAndrews & Forbes and its permitted assignees also received an option, exercisable through October 13, 2003, to invest up to an additional $9,000,000 in SIGA on the same terms. In June 2003, the Company raised gross proceeds of $1.5 million in a private offering of 1,250,000 shares of common stock. In connection with the offering, the Company issued warrants to purchase 625,000 shares of the Company's common stock to placement agents. The warrants are exercisable at a price of $2.00 per share and have a term of five years. In May 2003, we acquired substantially all of the assets of Plexus in exchange for 1,950,000 shares of our common stock and the assumption of certain liabilities, including promissory notes for loans we previously made to Plexus for $50,000 and $20,000. In December 2002 and January 2003, we completed a private placement of 34 units consisting of 1.7 million shares of common stock to a group of private investors. The gross proceeds from the offering were $1,865,000 with net proceeds to SIGA of approximately $1,682,000. We anticipate that our current resources will be sufficient to finance our currently anticipated needs for operating and capital expenditures approximately through the first quarter of 2005. In addition, we will attempt to generate additional working capital through a combination of collaborative agreements, strategic alliances, research grants, equity and debt financing. However, no assurance can be provided that additional capital will be obtained through these sources or, if obtained, will be on commercially reasonable terms. Our working capital and capital requirements will depend upon numerous factors, including pharmaceutical research and development programs; pre-clinical and clinical testing; timing and cost of obtaining regulatory approvals; levels of resources that we devote to the development of manufacturing and marketing capabilities; technological advances; status of competitors; and our ability to establish collaborative arrangements with other organizations. SIGA leases certain facilities and office space under operating leases. Minimum future rental commitments under operating leases having noncancellable lease terms are $193,237, $86,398 and $87,737 for the years ending December 31, 2004, 2005 and 2006, respectively. Off-Balance Sheet Arrangements SIGA does not have any off-balance sheet arrangements. Risk Factors That May Affect Results of Operations and Financial Condition This report contains forward-looking statements and other prospective information relating to future events. These forward-looking statements and other information are subject to risks and uncertainties that could cause our actual results to differ materially from our historical results or currently anticipated results including the following: We have incurred operating losses since our inception and expect to incur net losses and negative cash flow for the foreseeable future. 24

We incurred net losses of approximately $5.3 million and approximately $3.3 million for the years ended December 31, 2003 and 2002, respectively. As of December 31, 2003 and December 31, 2002, our accumulated deficit was approximately $34.8 million and approximately $29.5 million, respectively. We expect to continue to incur significant operating expenditures. We will need to generate significant revenues to achieve and maintain profitability. We cannot guarantee that we will achieve sufficient revenues for profitability. Even if we do achieve profitability, we cannot guarantee that we can sustain or increase profitability on a quarterly or annual basis in the future. If revenues grow slower than we anticipate, or if operating expenses exceed our expectations or cannot be adjusted accordingly, then our business, results of operations and financial condition will be materially and adversely affected. Because our strategy includes acquisitions of other businesses, acquisition expenses and any cash used to make these acquisitions will reduce our available cash. Our business will suffer if we are unable to raise additional equity funding. We continue to be dependent on our ability to raise money in the equity markets. There is no guarantee that we will continue to be successful in raising such funds. If we are unable to raise additional equity funds, we may be forced to discontinue or cease certain operations. We currently have sufficient operating capital to finance our operations into approximately the first quarter of 2005. Our annual operating needs vary from year to year depending upon the amount of revenue generated through grants and licenses and the amount of projects we undertake, as well as the amount of resources we expend, in connection with acquisitions all of which may materially differ from year to year and may adversely affect our business. Our stock price is, and we expect it to remain, volatile, which could limit investors' ability to sell stock at a profit. The volatile price of our stock makes it difficult for investors to predict the value of their investment, to sell shares at a profit at any given time, or to plan purchases and sales in advance. A variety of factors may affect the market price of our common stock. These include, but are not limited to: o publicity regarding actual or potential clinical results relating to products under development by our competitors or us; o delay or failure in initiating, completing or analyzing pre-clinical or clinical trials or the unsatisfactory design or results of these trials; o achievement or rejection of regulatory approvals by our competitors or us; o announcements of technological innovations or new commercial products by our competitors or us; o developments concerning proprietary rights, including patents; o developments concerning our collaborations; o regulatory developments in the United States and foreign countries; o economic or other crises and other external factors; o period-to-period fluctuations in our revenues and other results of operations; o changes in financial estimates by securities analysts; and o sales of our common stock. 25

Additionally, because there is not a high volume of trading in our stock, any information about SIGA in the media may result in significant volatility in our stock price. We will not be able to control many of these factors, and we believe that period-to-period comparisons of our financial results will not necessarily be indicative of our future performance. In addition, the stock market in general, and the market for biotechnology companies in particular, has experienced extreme price and volume fluctuations that may have been unrelated or disproportionate to the operating performance of individual companies. These broad market and industry factors may seriously harm the market price of our common stock, regardless of our operating performance. The following table presents the high and low bid range of our stock for the past eight quarters. Bid Range 2002 High Low ----- ----- First Quarter .............................. $2.91 $2.01 Second Quarter ............................. $2.63 $0.81 Third Quarter .............................. $1.39 $0.65 Fourth Quarter ............................. $2.15 $0.65 2003 High Low ----- ----- First Quarter .............................. $1.49 $1.02 Second Quarter ............................. $1.91 $1.09 Third Quarter .............................. $2.13 $1.61 Fourth Quarter ............................. $2.60 $1.80 We are in various stages of product development and there can be no assurance of successful commercialization. In general, our research and development programs are at an early stage of development. The strep vaccine program is in Phase I clinical trials. All other programs are in the pre-clinical stage of development. Our biological warfare defense products do not need human clinical trials for approval by the FDA. We will need to perform two animal models and provide safety data for a product to be approved. Our other products will be subject to the approval guidelines under FDA regulatory requirements which include a number of phases of testing in humans. The FDA has not approved any of our biopharmaceutical product candidates. Any drug candidates developed by us will require significant additional research and development efforts, including extensive pre-clinical and clinical testing and regulatory approval, prior to commercial sale. We cannot be sure our approach to drug discovery will be effective or will result in the development of any drug. We cannot expect that any drugs resulting from our research and development efforts will be commercially available for many years, if at all. We have limited experience in conducting pre-clinical testing and clinical trials. Even if we receive initially positive pre-clinical or clinical results, such results do not mean that similar results will be obtained in the later stages of drug development, such as additional pre-clinical testing or human clinical trials. All of our potential drug candidates are prone to the risks of failure inherent in pharmaceutical product development, including the possibility that none of our drug candidates will or can: o be safe, non-toxic and effective; o otherwise meet applicable regulatory standards; 26

o receive the necessary regulatory approvals; o develop into commercially viable drugs; o be manufactured or produced economically and on a large scale; o be successfully marketed; o be reimbursed by government and private insurers; and o achieve customer acceptance. In addition, third parties may preclude us from marketing our drugs through enforcement of their proprietary rights, or third parties may succeed in marketing equivalent or superior drug products. Our failure to develop safe, commercially viable drugs would have a material adverse effect on our business, financial condition and results of operations. Most of our immediately foreseeable future revenues are contingent upon collaborative and license agreements and we may not achieve sufficient revenues from these agreements to attain profitability. Until and unless we successfully make a product, our ability to generate revenues will largely depend on our ability to enter into additional collaborative and license agreements with third parties and maintain the agreements we currently have in place. Substantially all of our revenues for the years ended December 31, 2003 and 2002, respectively, were derived from revenues related to contracts and license agreements. We will receive little or no revenues under our collaborative agreements if our collaborators' research, development or marketing efforts are unsuccessful, or if our agreements are terminated early. Additionally, if we do not enter into new collaborative agreements, we will not receive future revenues from new sources. Our future revenue is substantially dependent on the continuing grant and contract work being performed for the NIH which expires in May 2004 and the U.S. Army which expires at the end of December 2007. These agreements are for specific work to be performed under the agreements and could only be canceled by the other party thereto for non-performance by the other party thereto. Several factors will affect our future receipt of revenues from collaborative arrangements, including the amount of time and effort expended by our collaborators, the timing of the identification of useful drug targets and the timing of the discovery and development of drug candidates. Under our existing agreements, we may not earn significant milestone payments until our collaborators have advanced products into clinical testing, which may not occur for many years, if at all. We have material agreements with the following collaborators: o The Rockefeller University. The term of our agreement with Rockefeller is for the duration of the patents and a number of pending patents. As we do not currently know when any patents pending or future patents will expire, we cannot at this time definitively determine the term of this agreement. The agreement can be terminated earlier if we are in breach of the provisions of the agreement and do not cure the breach in the allowed cure period. We are current in all obligations under the contract. o Oregon State University ("OSU"). OSU is a signatory of our agreement with Rockefeller. The term of this agreement is for the duration of the patents and a number of pending patents. As we do not currently know when any patents pending or future patents will expire, we cannot at this time definitively determine the term of this agreement. The agreement can be terminated earlier if we are in breach of the provisions of the agreement and do not cure the breach in the allowed cure period. We are current in all obligations under the contract. We have also entered into a subcontract agreement with OSU for us to perform work under a grant OSU has from the NIH. The subcontract agreement was renewable annually and the current terms expired on August 31, 2003. Work on this agreement was completed in 2003. 27

o Wyeth. Our license agreement expires on the earlier of June 30, 2007 or the last to expire patent that we have sub-licensed to them. Wyeth has the right to terminate the agreement on 90 days written notice. If terminated, all rights granted to Wyeth will revert to us, except for any compound identified by Wyeth prior to the date of termination and subject to the milestones and royalty obligations of the agreement. o National Institutes of Health. Under our collaborative agreement with the NIH, it is required to conduct and pay for the clinical trials of our strep vaccine product through phase II human trials. The NIH can terminate the agreement on 60 days written notice. If terminated, we receive copies of all data, reports and other information related to the trials. If terminated, we would have to find another source of funds to continue to conduct the trials. We are party to another collaborative agreement with the NIH under which we received a grant for approximately $865,000. The term of this agreement expires in May 2004. We are paid as the work is performed and the agreement can be cancelled for non-performance. We are current in all our obligations under our agreements. o Washington University. We have licensed certain technology from Washington under a non-exclusive license agreement. The term of our agreement with Washington is for the duration of the patents and a number of pending patents. As we do not currently know when any patents pending or future patents will expire, we cannot at this time definitively determine the term of this agreement. The agreement cannot be terminated unless we fail to pay our share of the joint patent costs for the technology licensed. We have currently met all our obligations under this agreement. o Regents of the University of California. We have licensed certain technology from Regents under an exclusive license agreement. We are required to pay minimum royalties under this agreement. This agreement is related to our agreement with Wyeth and expires at the same time as that agreement. It can be cancelled earlier if we default on our obligations or if Wyeth cancels its agreement with SIGA and we are not able to find a replacement for Wyeth. We have currently met all our obligations under this agreement. o TransTech Pharma, Inc. Under our collaborative agreement with TransTech Pharma, TransTech Pharma is required to collaborate with us on the discovery, optimization and development of lead compounds to therapeutic agents. We and TransTech Pharma have agreed to share the costs of development and revenues generated from licensing and profits from any commercialized products sales. The agreement will be in effect until terminated by the parties or upon cessation of research or sales of all products developed under the agreement. We are current in all obligations under this agreement. We may face limitations on our ability to attract suitable acquisition opportunities or to integrate additional acquired businesses and the failure to consummate an acquisition may significantly drain our resources. As part of our business strategy we expect to enter into business combinations and acquisitions. Some of these transactions could be material in size and scope. While we will continually be searching for additional acquisition opportunities, we may not be successful in identifying suitable acquisitions. We compete for acquisition candidates with other entities, some of which have greater financial and other resources than we have. Increased competition for acquisition candidates may make fewer acquisition candidates available to us and may cause acquisitions to be made on less attractive terms, such as higher purchase prices. Acquisition costs may increase to levels that are beyond our financial capability or that would adversely affect our results of operations and financial condition. Our ability to make acquisitions will depend in part on the relative attractiveness of shares of our common stock as consideration for potential acquisition candidates. This attractiveness may depend largely on the relative market price, our ability to register common stock and capital appreciation prospects of our common stock. If the market price of our common stock were to decline materially over a prolonged period of time, our acquisition program could be materially adversely affected. Failure to making an acquisition will limit our ability to grow, but will not be central to our continued existence. Costs associated with failed acquisitions, such as our plans to merge 28

with Allergy Therapeutics and Hypernix, may result in significant operating costs that may need to be financed from operations or from additional equity capital. The total costs associated with the failed acquisition in 2002 of Allergy Therapeutics were approximately $600,000, of which approximately $127,000 remain unpaid. The costs were associated with professional fees for attorneys and accountants. Additionally, there was significant time spent by our management in the contemplated transaction. We may not be able to consummate potential acquisitions or an acquisition may not enhance our business or may decrease rather than increase our earnings. In the future, we may issue additional securities in connection with one or more acquisitions, which may dilute our existing shareholders. Future acquisitions could also divert substantial management time and result in short term reductions in earnings or special transaction or other charges. In addition, we cannot guarantee that we will be able to successfully integrate the businesses that we may acquire into our existing business. Our shareholders may not have the opportunity to review, vote on or evaluate future acquisitions. The biopharmaceutical market in which we compete and will compete is highly competitive. The biopharmaceutical industry is characterized by rapid and significant technological change. Our success will depend on our ability to develop and apply our technologies in the design and development of our product candidates and to establish and maintain a market for our product candidates. There also are many companies, both public and private, including major pharmaceutical and chemical companies, specialized biotechnology firms, universities and other research institutions engaged in developing pharmaceutical and biotechnology products. Many of these companies have substantially greater financial, technical, research and development, and human resources than us. Competitors may develop products or other technologies that are more effective than any that are being developed by us or may obtain FDA approval for products more rapidly than us. If we commence commercial sales of products, we still must compete in the manufacturing and marketing of such products, areas in which we have no experience. Many of these companies also have manufacturing facilities and established marketing capabilities that would enable such companies to market competing products through existing channels of distribution. Two companies with similar profiles are VaxGen, Inc., which is developing vaccines against anthrax, Smallpox and HIV/AIDS; and Avant Immunotherapeutics, Inc., which has vaccine programs for agents of biological warfare. Because we must obtain regulatory clearance to test and market our products in the United States, we cannot predict whether or when we will be permitted to commercialize our products. A pharmaceutical product cannot be marketed in the U.S. until it has completed rigorous pre-clinical testing and clinical trials and an extensive regulatory clearance process implemented by the FDA. Pharmaceutical products typically take many years to satisfy regulatory requirements and require the expenditure of substantial resources depending on the type, complexity and novelty of the product. Before commencing clinical trials in humans, we must submit and receive clearance from the FDA by means of an Investigational New Drug ("IND") application. Institutional review boards and the FDA oversee clinical trials and such trials: o must be conducted in conformance with the FDA's good laboratory practice regulations; o must meet requirements for institutional review board oversight; o must meet requirements for informed consent; o must meet requirements for good clinical and manufacturing practices; o are subject to continuing FDA oversight; o may require large numbers of test subjects; and 29

o may be suspended by us or the FDA at any time if it is believed that the subjects participating in these trials are being exposed to unacceptable health risks or if the FDA finds deficiencies in the IND application or the conduct of these trials. Before receiving FDA clearance to market a product, we must demonstrate that the product is safe and effective on the patient population that will be treated. Data we obtain from preclinical and clinical activities are susceptible to varying interpretations that could delay, limit or prevent regulatory clearances. Additionally, we have limited experience in conducting and managing the clinical trials and manufacturing processes necessary to obtain regulatory clearance. If regulatory clearance of a product is granted, this clearance will be limited only to those states and conditions for which the product is demonstrated through clinical trials to be safe and efficacious. We cannot ensure that any compound developed by us, alone or with others, will prove to be safe and efficacious in clinical trials and will meet all of the applicable regulatory requirements needed to receive marketing clearance. If our technologies or those of our collaborators are alleged or found to infringe the patents or proprietary rights of others, we may be sued or have to license those rights from others on unfavorable terms. Our commercial success will depend significantly on our ability to operate without infringing the patents and proprietary rights of third parties. Our technologies, along with our licensors' and our collaborators' technologies, may infringe the patents or proprietary rights of others. If there is an adverse outcome in litigation or an interference to determine priority or other proceeding in a court or patent office, then we, or our collaborators and licensors, could be subjected to significant liabilities, required to license disputed rights from or to other parties and/or required to cease using a technology necessary to carry out research, development and commercialization. At present we are unaware of any or potential infringement claims against our patent portfolio. The costs to establish the validity of patents, to defend against patent infringement claims of others and to assert infringement claims against others can be expensive and time consuming, even if the outcome is favorable. An outcome of any patent prosecution or litigation that is unfavorable to us or one of our licensors or collaborators may have a material adverse effect on us. We could incur substantial costs if we are required to defend ourselves in patent suits brought by third parties, if we participate in patent suits brought against or initiated by our licensors or collaborators or if we initiate such suits. We may not have sufficient funds or resources in the event of litigation. Additionally, we may not prevail in any such action. Any conflicts resulting from third-party patent applications and patents could significantly reduce the coverage of the patents owned, optioned by or licensed to us or our collaborators and limit our ability or that of our collaborators to obtain meaningful patent protection. If patents are issued to third parties that contain competitive or conflicting claims, we, our licensors or our collaborators may be legally prohibited from researching, developing or commercializing of potential products or be required to obtain licenses to these patents or to develop or obtain alternative technology. We, our licensors and/or our collaborators may be legally prohibited from using patented technology, may not be able to obtain any license to the patents and technologies of third parties on acceptable terms, if at all, or may not be able to obtain or develop alternative technologies. In addition, like many biopharmaceutical companies, we may from time to time hire scientific personnel formerly employed by other companies involved in one or more areas similar to the activities conducted by us. We and/or these individuals may be subject to allegations of trade secret misappropriation or other similar claims as a result of their prior affiliations. Our ability to compete may decrease if we do not adequately protect our intellectual property rights. Our commercial success will depend in part on our and our collaborators' ability to obtain and maintain patent protection for our proprietary technologies, drug targets and potential products and to effectively preserve our trade secrets. Because of the substantial length of time and expense associated with bringing potential products through the development and regulatory clearance processes to reach the marketplace, the pharmaceutical industry places considerable importance on obtaining patent and trade secret protection. The patent positions of 30

pharmaceutical and biotechnology companies can be highly uncertain and involve complex legal and factual questions. No consistent policy regarding the breadth of claims allowed in biotechnology patents has emerged to date. Accordingly, we cannot predict the type and breadth of claims allowed in these patents. We have licensed the rights to seven issued U.S. patents and three issued European patents. These patents have varying lives and they are related to the technology licensed from Rockefeller University for the Strep and Gram-positive products. We have two additional patent applications in the U.S. and two applications in Europe relating to this technology. We are joint owner with Washington University of seven issued patents in the U.S. and two in Europe. In addition, there are four co-owned U.S. patent applications. These patents are for the technology used for the gram-negative product opportunities. We are also exclusive owner of one U.S. patent and one PCT application that relates to our DegP product opportunities. The following are our patent positions as of December 31, 2003. - ------------------------------------------------------------------------------------------------------------------ Number Exclusively Number Licensed Number Number Co- from Univ. Exclusively Exclusively Exclusively of Licensed Licensed Licensed Copenhagen from Number from with and Danish Oregon Exclusively Number Patent Rockefeller Washington Technical State Licensed Owned by Expiration PATENTS Univ. Univ. University University from UCLA SIGA Dates - ------------------------------------------------------------------------------------------------------------------ 2013, 2014 (3), 2015 (4), U.S. 7 7 1 2016 (2), 2017, 2019 (2), 2020,2021 - ------------------------------------------------------------------------------------------------------------------ 2004,2009 2014 (2), Australia 5 2 1 2015,2016 2019,2020 - ------------------------------------------------------------------------------------------------------------------ Canada 3 1 2004,2010 2014,2019 - ------------------------------------------------------------------------------------------------------------------ 2004,2009 Europe 3 2 2010,2014 2020 - ------------------------------------------------------------------------------------------------------------------ Hungary 2 2013,2016 - ------------------------------------------------------------------------------------------------------------------ 2004 (2), Japan 4 2 2010,2012 2014,2020 - ------------------------------------------------------------------------------------------------------------------ Mexico 1 2016 - ------------------------------------------------------------------------------------------------------------------ New Zealand 1 2016 - ------------------------------------------------------------------------------------------------------------------ APPLICATIONS - ------------------------------------------------------------------------------------------------------------------ U.S. applications 2 4 1 2 1 3 - ------------------------------------------------------------------------------------------------------------------ U.S. provisionals 5 - ------------------------------------------------------------------------------------------------------------------ 31

- ------------------------------------------------------------------------------------------------------------------ Number Exclusively Number Licensed Number Number Co- from Univ. Exclusively Exclusively Exclusively of Licensed Licensed Licensed Copenhagen from Number from with and Danish Oregon Exclusively Number Patent Rockefeller Washington Technical State Licensed Owned by Expiration PATENTS Univ. Univ. University University from UCLA SIGA Dates - ------------------------------------------------------------------------------------------------------------------ Danish 1 provisionals - ------------------------------------------------------------------------------------------------------------------ PCT 1 3 - ------------------------------------------------------------------------------------------------------------------ Australia 1 1 1 1 - ------------------------------------------------------------------------------------------------------------------ China 1 - ------------------------------------------------------------------------------------------------------------------ Canada 3 1 1 1 - ------------------------------------------------------------------------------------------------------------------ Europe 2 1 1 1 - ------------------------------------------------------------------------------------------------------------------ Finland 1 - ------------------------------------------------------------------------------------------------------------------ Japan 3 1 1 - ------------------------------------------------------------------------------------------------------------------ We also rely on copyright protection, trade secrets, know-how, continuing technological innovation and licensing opportunities. In an effort to maintain the confidentiality and ownership of trade secrets and proprietary information, we require our employees, consultants and some collaborators to execute confidentiality and invention assignment agreements upon commencement of a relationship with us. These agreements may not provide meaningful protection for our trade secrets, confidential information or inventions in the event of unauthorized use or disclosure of such information, and adequate remedies may not exist in the event of such unauthorized use or disclosure. We may have difficulty managing our growth. We expect to experience growth in the number of our employees and the scope of our operations. This growth has placed, and may continue to place, a significant strain on our management and operations. Our ability to manage this growth will depend upon our ability to broaden our management team and our ability to attract, hire and retain skilled employees. Our success will also depend on the ability of our officers and key employees to continue to implement and improve our operational and other systems and to hire, train and manage our employees. We depend on a key employee in a competitive market for skilled personnel. We are highly dependent on Dr. Dennis Hruby, our Chief Scientific Officer. We currently have an employment agreement which expires on December 31, 2005 with Dr. Hruby who we consider to be a "key employee." The loss of his services prior to the termination of his employment agreement would have a material adverse effect on our business. We do not maintain a key person life insurance policy on the life of any employee. Our future success also will depend in part on the continued service of our key scientific, software, bioinformatics and management personnel and our ability to identify, hire and retain additional personnel, including, when we have a product for commercialization, customer service, marketing and sales staff. We experience intense competition for qualified personnel. We may not be able to continue to attract and retain personnel necessary to develop our business. Our activities involve hazardous materials and may subject us to environmental regulatory liabilities. Our biopharmaceutical research and development involves the controlled use of hazardous and radioactive materials and biological waste. We are subject to federal, state and local laws and regulations governing the use, manufacture, storage, handling and disposal of these materials and certain waste products. Although we believe that our safety procedures for handling and disposing of these materials comply with legally prescribed standards, the 32

risk of accidental contamination or injury from these materials cannot be completely eliminated. In the event of an accident, we could be held liable for damages, and this liability could exceed our resources. The research and development activities of our company do not produce any unusual hazardous products. We do use small amounts of 32P, 35S and 3H, which are stored, used and disposed of in accordance with Nuclear Regulatory Commission ("NRC") regulations. We maintain liability insurance in the amount of approximately $5,000,000 and we believe this should be sufficient to cover any contingent losses. We believe that we are in compliance in all material respects with applicable environmental laws and regulations and currently do not expect to make material additional capital expenditures for environmental control facilities in the near term. However, we may have to incur significant costs to comply with current or future environmental laws and regulations. Our potential products may not be acceptable in the market or eligible for third party reimbursement resulting in a negative impact on our future financial results. Any products successfully developed by us or our collaborative partners may not achieve market acceptance. The antibiotic products which we are attempting to develop will compete with a number of well-established traditional antibiotic drugs manufactured and marketed by major pharmaceutical companies. The degree of market acceptance of any of our products will depend on a number of factors, including: o the establishment and demonstration in the medical community of the clinical efficacy and safety of such products, o the potential advantage of such products over existing treatment methods, and o reimbursement policies of government and third-party payors. Physicians, patients or the medical community in general may not accept or utilize any products that we or our collaborative partners may develop. Our ability to receive revenues and income with respect to drugs, if any, developed through the use of our technology will depend, in part, upon the extent to which reimbursement for the cost of such drugs will be available from third-party payors, such as government health administration authorities, private health care insurers, health maintenance organizations, pharmacy benefits management companies and other organizations. Third-party payors are increasingly disputing the prices charged for pharmaceutical products. If third-party reimbursement was not available or sufficient to allow profitable price levels to be maintained for drugs developed by us or our collaborative partners, it could adversely affect our business. If our products harm people, we may experience product liability claims that may not be covered by insurance. We face an inherent business risk of exposure to potential product liability claims in the event that drugs we develop are alleged to cause adverse effects on patients. Such risk exists for products being tested in human clinical trials, as well as products that receive regulatory approval for commercial sale. We may seek to obtain product liability insurance with respect to drugs we and/or or our collaborative partners develop. However, we may not be able to obtain such insurance. Even if such insurance is obtainable, it may not be available at a reasonable cost or in a sufficient amount to protect us against liability. We may be required to perform additional clinical trials or change the labeling of our products if we or others identify side effects after our products are on the market, which could harm sales of the affected products. If we or others identify side effects after any of our products, if any, after they are on the market, or if manufacturing problems occur: o regulatory approval may be withdrawn; 33

o reformulation of our products, additional clinical trials, changes in labeling of our products may be required; o changes to or re-approvals of our manufacturing facilities may be required; o sales of the affected products may drop significantly; o our reputation in the marketplace may suffer; and o lawsuits, including class action suits, may be brought against us. Any of the above occurrences could harm or prevent sales of the affected products or could increase the costs and expenses of commercializing and marketing these products. The manufacture of genetically engineered commensals is a time-consuming and complex process which may delay or prevent commercialization of our products, or may prevent our ability to produce an adequate volume for the successful commercialization of our products. Although our management believes that we have the ability to acquire or produce quantities of genetically engineered commensals sufficient to support our present needs for research and our projected needs for our initial clinical development programs, management believes that improvements in our manufacturing technology will be required to enable us to meet the volume and cost requirements needed for certain commercial applications of commensal products. Products based on commensals have never been manufactured on a commercial scale. The manufacture of all of our products will be subject to current GMP requirements prescribed by the FDA or other standards prescribed by the appropriate regulatory agency in the country of use. There can be no assurance that we will be able to manufacture products, or have products manufactured for us, in a timely fashion at acceptable quality and prices, that we or third party manufacturers can comply with GMP, or that we or third party manufacturers will be able to manufacture an adequate supply of product. Healthcare reform and controls on healthcare spending may limit the price we charge for any products and the amounts thereof that we can sell. The U.S. federal government and private insurers have considered ways to change, and have changed, the manner in which healthcare services are provided in the U.S. Potential approaches and changes in recent years include controls on healthcare spending and the creation of large purchasing groups. In the future, the U.S. government may institute further controls and limits on Medicare and Medicaid spending. These controls and limits might affect the payments we could collect from sales of any products. Uncertainties regarding future healthcare reform and private market practices could adversely affect our ability to sell any products profitably in the U.S. At present, we do not foresee any changes in FDA regulatory policies that would adversely effect our development programs. The future issuance of preferred stock may adversely effect the rights of the holders of our common stock. Our certificate of incorporation allows our Board of Directors to issue up to 10,000,000 shares of preferred stock and to fix the voting powers, designations, preferences, rights and qualifications, limitations or restrictions of these shares without any further vote or action by the stockholders. The rights of the holders of common stock will be subject to, and could be adversely affected by, the rights of the holders of any preferred stock that we may issue in the future. The issuance of preferred stock, while providing desirable flexibility in connection with possible acquisitions and other corporate purposes, could have the effect of making it more difficult for a third party to acquire a majority of our outstanding voting stock, thereby delaying, deferring or preventing a change in control. Concentration of ownership of our capital stock could delay or prevent change of control. Our directors, executive officers and principal stockholders beneficially own a significant percentage of our common stock and preferred stock. They also have, through the exercise or conversion of certain securities, the right 34

to acquire additional common stock. As a result, these stockholders, if acting together, have the ability to significantly influence the outcome of corporate actions requiring shareholder approval. Additionally, this concentration of ownership may have the effect of delaying or preventing a change in control of SIGA. At December 31, 2003, Directors, Officers and principal stockholders beneficially owned approximately 37.6% of our stock. Item 7. Financial Statements and Supplementary Data The financial statements required by Item 7 are included in this Annual Report beginning on Page F-1. Item 8. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure None. Item 8A. Controls and Procedures As of the end of the period covered by this Annual Report on Form 10-K, the Company's management, including the Acting Chief Executive Officer and Chief Financial Officer, carried out an evaluation of the effectiveness of the Company's disclosure controls and procedures. Based upon that evaluation, the Acting Chief Executive Officer and Chief Financial Officer has concluded that the Company's current disclosure controls and procedures are effective. There have been no changes in the Company's internal controls or in other factors that could significantly affect internal controls subsequent to the date of the evaluation by the Acting Chief Executive Officer and Chief Financial Officer. 35

PART III Item 9. Directors and Executive Officers of the Registrant Name Age Position - ---- --- -------- Donald G. Drapkin 56 Chairman of the Board Thomas N. Konatich 58 Acting Chief Executive Officer, Chief Financial Officer, Secretary and Treasurer Dennis E. Hruby, Ph.D. 52 Chief Scientific Officer Susan K. Burgess, Ph.D. 57 President Roger Brent, Ph.D. 48 Director Charles Cantor, Ph.D. 62 Director Thomas E. Constance 67 Director Bernard L. Kasten Jr. M.D. 57 Director Adnan M. Mjalli, Ph.D. 40 Director Mehmet C. Oz, M.D. 43 Director Eric A. Rose, M.D. 53 Director Paul G. Savas 41 Director Michael Weiner, M.D. 57 Director Donald G. Drapkin has served as Chairman of the Board and a director of SIGA since April 19, 2001. Mr. Drapkin has been Vice Chairman and a director of MacAndrews & Forbes Holdings Inc. and various of its affiliates since 1987. Prior to joining MacAndrews & Forbes, Mr. Drapkin was a partner in the law firm of Skadden, Arps, Slate, Meagher & Flom LLP for more than five years. Mr. Drapkin is also a director of the following corporations which file reports pursuant to the Securities Exchange Act of 1934: Anthracite Capital, Inc., The Molson Companies Limited, Playboy Enterprises, Inc., Revlon Consumer Products Corporation and Revlon Inc. Mr. Drapkin is also a director of Nephros, Inc., Pharmacore, Inc. and TransTech Pharma, Inc. Thomas N. Konatich has served as Vice President, Chief Financial Officer and Treasurer since April 1, 1998. He was named Secretary of SIGA on June 29, 2001 and has been our Acting Chief Executive Officer since October 5, 2001. From November 1996 through March 1998, Mr. Konatich served as Chief Financial Officer and a Director of Innapharma, Inc., a privately held pharmaceutical development company. From 1993 through November 1996, Mr. Konatich served as Vice President and Chief Financial Officer of Seragen, Inc., a publicly traded biopharmaceutical development company. From 1988 to 1993, he was Treasurer of Ohmicron Corporation, a venture capital financed environmental biotechnology firm. Mr. Konatich has an MBA from the Columbia Graduate School of Business. Dennis F. Hruby, Ph.D. has served as Vice-President - Chief Scientific Officer since June 2000. From April 1, 1997 through June 2000, Dr. Hruby was our Vice President of Research. From January 1996 through March 1997, Dr. Hruby served as a senior scientific advisor to SIGA. Dr. Hruby is a Professor of Microbiology at Oregon State University, and from 1990 to 1993 was Director of the Molecular and Cellular Biology Program and Associate Director of the Center for Gene Research and Biotechnology. Dr. Hruby specializes in virology and cell biology research, and the use of viral and bacterial vectors to produce recombinant vaccines. He is a member of the American Society of Virology, the American Society for Microbiology and a fellow of the American Academy of Microbiology. Dr. Hruby received a Ph.D. in microbiology from the University of Colorado Medical Center and a B.S. in microbiology from Oregon State University. Susan K. Burgess, Ph.D. became SIGA's President in May 2003. Prior to SIGA's acquisition of Plexus Vaccine Inc.'s assets, she was founder and served as President and CEO of Plexus Vaccine Inc., a company that 36

creates vaccines for emerging pathogens using immunological bioinformatics and structural biology. She was founder and principal of The Remuda Group, a biotech consulting firm, and co-founder and organizer of The Cienaga Forum, a non-profit educational organization that convenes the "After the Genome" series of postgenomic cross-disciplinary think-tanks. Dr. Burgess was a co-founder and Vice President of corporate development for Structural Bioinformatics, Inc., from 1995-1999, responsible for enlisting a number of corporate collaborations; and co-founder in 1994 of MesaGnostics, Inc, a San Diego proteomics company. She has over twenty years research and business development experience in the biopharmaceutical industry at The Alza Corporation, Burroughs Wellcome Company, and Glaxo, Inc., with a Ph.D. (pharmacology and toxicology) from the University of Kansas, and postdoctoral training (molecular neurobiology) at the University of North Carolina at Chapel Hill. Roger Brent, Ph.D. has been a director of SIGA since May 23, 2003. Since 2001, Dr. Brent has served as the President and Director of The Molecular Sciences Institute in Berkeley California. Dr. Brent was formerly a faculty member at Harvard Medical School and Massachusetts General Hospital in Boston. Dr. Brent advises agencies of the US government, including the Defense Advanced Research Projects Agency, on genomics, and The Wellcome Trust. Dr. Brent founded Current Protocols in Molecular Biology. Dr. Brent is an inventor on twelve issued patents and his work is widely known on biological technologies to map genetic networks and test functions for genes and alleles. Charles Cantor, Ph.D. has served as a director of SIGA since May 23, 2003. Since 1998, Dr. Cantor has served as Chief Scientific Officer of Sequenom Inc., a discovery genetics company. Dr. Cantor is Director of the Center for Advanced Biotechnology at Boston University. Dr. Cantor was also the Director of the Human Genome Center of the Department of Energy at Lawrence Berkley Laboratory and has held positions at Columbia University and the University of California Berkeley. Dr. Cantor has been granted 26 patents and published over 400 peer-reviewed articles. Thomas E. Constance has served as a director of SIGA since April 19, 2001. Mr. Constance is Chairman and, since 1994, a partner of Kramer Levin Naftalis & Frankel LLP, a law firm in New York City. Mr. Constance is a director of the following corporation which files reports pursuant to the Securities Exchange Act of 1934: Kroll Inc. Mr. Constance serves as a Trustee of the M.D. Sass Foundation and St. Vincent's Services. He also serves on the Advisory Board of Directors of Barington Capital, L.P. Bernard L. Kasten Jr., M.D. has been a director of SIGA since May 23, 2003. Since February 2002, Dr. Kasten has been Vice President, Medical Affairs of MedPlus Inc., a healthcare information technology company and a wholly-owned subsidiary of Quest Diagnostics, Inc., a diagnostic testing, information and services company. Since 1975, Dr. Kasten has been a Diplomat of the American Board of Pathology with a sub-specialty certification in 1976 in Medical Microbiology. Dr. Kasten's staff appointments have included service in the Division of Laboratory Medicine at The Cleveland Clinic; Associate Director of Pathology and Laboratory Services at the Bethesda Hospital Systems in Cincinnati, Ohio and Chief Laboratory Officer at Quest Diagnostics Incorporated. Dr. Kasten was a founder of Plexus Vaccine Inc., a vaccine company of which SIGA acquired substantially all of the assets in May 2003. Dr. Kasten is an author of "Infectious Disease Handbook" 5th Edition, 2003, Lexi-Comp Inc. Adnan M. Mjalli, Ph.D. has served as a director of SIGA since January 2004. Dr. Mjalli is the founder, President and Chief Executive Officer of TransTech Pharma, Inc., a privately held drug discovery company in High Point, NC. He also serves as Chairman of the Board of Pharmacore, Inc. where he previously served as President and CEO from December of 1998 to November 2000. Dr. Mjalli obtained his Ph.D. in medicinal chemistry in 1989 from the University of Exeter, UK. His postdoctoral work was carried out at the University of Rochester. Prior to founding TransTech Pharma, he held various positions of increasing responsibility in research and senior management at several pharmaceutical and biotechnology companies including Merck & Co., Inc. Mehmet C. Oz, M.D. has served as a director of SIGA since April 19, 2001. Dr. Oz has been a Cardiac Surgeon at Columbia University Presbyterian Hospital since 1993 and a Professor of Surgery and Vice Chairman for Cardiovascular Services of the Department of Surgery there since July 2001. Dr. Oz directs the following programs at New York University Presbyterian Hospital, Columbia University: the Cardiovascular Institute, the complementary medicine program, the clinical profusion program and clinical trials of new surgical technology. Dr. Oz received his undergraduate degree from Harvard University in 1982, and, in 1986, he received a joint M.D./M.B.A. degree from the University of Pennsylvania Medical School and the Wharton School of Business. 37

Eric A. Rose, M.D. has served as a director of SIGA since April 19, 2001. From April 19, 2001 until June 21, 2001, Dr. Rose served as Interim Chief Executive Officer of SIGA. Dr. Rose is currently Chairman of the Department of Surgery and Surgeon-in-Chief of the Columbia Presbyterian Center of New York Presbyterian Hospital, a position he has held since August 1994. Dr. Rose is a past President of the International Society for Heart and Lung Transplantation. Dr. Rose was recently appointed as Morris & Rose Milstein Professor of Surgery at Columbia University's College of Physicians and Surgeons' Department of Surgery. Dr. Rose is a director of TransTech Pharma, Inc. and a former director of Nexell Therapeutics Inc. (f/k/a VimRx). Dr. Rose is a graduate of both Columbia College and Columbia University College of Physicians & Surgeons. Paul G. Savas has been a Senior Vice President of Finance at MacAndrews & Forbes Holdings, Inc. and its affiliates since October 2002, and was Vice President of MacAndrews & Forbes and its affiliates from 1998 until 2002. He was Director of Corporate Finance at MacAndrews & Forbes from 1994 - 1998. From December 1988 until April 1997, Mr. Savas served in the Finance Department of NYNEX Corporation holding the positions of Associate Director of Corporate Finance and Staff Director of External Reporting. Michael A. Weiner, M.D. has served as a director of SIGA since April 19, 2001. Dr. Weiner is the Hettinger Professor of Pediatrics at Columbia University College of Physicians and Surgeons since 1996. Dr. Weiner is also the Director of Pediatric Oncology at New York Presbyterian Hospital. Dr. Weiner was a director of Nexell Therapeutics, Inc. (f/k/a VimRx) from March 1996 to February 1999. Dr. Weiner is a 1972 graduate of the New York State Health Sciences Center at Syracuse, and he was a post graduate student at New York University and Johns Hopkins University. Audit Committee Matters The purpose of the audit committee is to assist our Board of Directors in the oversight of the integrity of the financial statements of SIGA, SIGA's compliance with legal and regulatory matters, the independent auditor's qualifications and independence, and the performance of SIGA's independent auditors. The primary responsibilities of the audit committee are set forth in its charter, and include various matters with respect to the oversight of SIGA's accounting and financial reporting process and audits of the financial statements of SIGA on behalf of our Board of Directors. The audit committee also selects the independent certified public accountants to conduct the annual audit of the financial statements of SIGA; reviews the proposed scope of such audit; reviews accounting and financial controls of SIGA with the independent public accountants and our financial accounting staff; and reviews and approves transactions between us and our directors, officers, and their affiliates. The current members of SIGA's audit committee are Paul G. Savas, Mehmet C. Oz and Michael Weiner. The Company's board has determined that Mr. Savas is an audit committee financial expert and that he is independent as defined in Item 7(d)(B)(iv) of Schedule 14A under the Exchange Act. The current audit committee charter is filed as an exhibit to this Annual Report. Section 16(a) Beneficial Ownership Reporting Compliance Section 16(a) of the Securities Exchange Act of 1934 (the "Exchange Act") requires the Company's officers and directors, and persons who own more than ten percent of a registered class of the Company's equity securities, to file reports of ownership and changes in ownership with the Securities and Exchange Commission. Officers, directors and greater than ten-percent stockholders are required by SEC regulation to furnish the Company with copies of all Section 16(a) reports that they file. Based solely upon review of the copies of such reports furnished to the Company and written representations from certain of the Company's executive officers and directors that no other such reports were required, the Company believes that during the fiscal year ended December 31, 2003 all Section 16(a) filing requirements applicable to its officers, directors and greater than ten-percent beneficial owners were complied with on a timely basis. 38

Code of Ethics The Company has adopted a code of ethics that applies to our officers, directors and employees, including without limitation, our Acting Chief Executive Officer, President, Chief Financial Officer and Chief Scientific Officer. A copy of our Code of Ethics is filed as an exhibit to this annual report. Item 10. Executive Compensation The following table sets forth the total compensation paid or accrued for the years ended December 31, 2003, 2002 and 2001, for each person who acted as SIGA's Chief Executive Officer at any time during the year ended December 31, 2003, and its most highly compensated executive officers, other than its Chief Executive Officer, whose salary and bonus for the fiscal year ended December 31, 2003 were in excess of $100,000 each. Summary Compensation Table Annual Compensation ----------------------------------------------- Long-Term Compensation Other Annual Securities Compensation Underlying Options ------------ ------------------ Name and Principal Position Year Salary ($) ($) (#) - --------------------------- ---- ---------- ------------ ------------------ Thomas N. Konatich, 2003 210,000 -- -- Chief Financial Officer and Acting CEO 2002 188,333 -- 200,000 2001 177,542 -- -- Dennis E. Hruby 2003 210,000 -- -- Chief Scientific Officer 2002 195,000 -- 300,000 2001 196,055 -- -- Susan K. Burgess 2003 135,692 -- 300,000 President - ---------- Option Grants for the Year Ended December 31, 2003 The following table sets forth grants of stock options during the year ended December 31, 2003 to anyone who served as Chief Executive Officer and its two highest paid employees. The exercise price at the time of the grant was equal to or above the fair market value at the time of the grant. Common Stock % of Total Exercise Underlying Options Granted Price Per Expiration Name Options Granted to Employees Share Date - ---- --------------- --------------- --------- ---------- Susan K. Burgess................ 325,000(1) 80% (2) 5/23/2113 - ---------- (1) Includes 25,000 options to purchase common stock granted as consideration in SIGA's acquisition of substantially all the assets of Plexus (the "Consideration Options"). (2) The exercise price per share of the Consideration Options is $1.69; the exercise price of the remaining options is $1.81. Option Exercises in Last Fiscal Year and Fiscal Year-End Option Values The following table provides certain summary information concerning stock options held as of December 31, 2003 by SIGA's Chief Executive Officer and its two most highly compensated executive officers, other than its Chief Executive Officer. No options were exercised during fiscal 2003 by any of the officers. 39

Value of Unexercised Number of Securities Underlying In-The-Money Options Unexercised Options # at Fiscal Year-End ($) (1) ------------------------------- -------------------------- Name Exercisable Unexercisable Exercisable Unexercisable - ---- ----------- ------------- ----------- ------------- Thomas N. Konatich 395,000 0 $29,000 0 Dennis E. Hruby 325,000 150,000 $36,250 0 Susan K. Burgess 125,000 200,000 $63,000 $96,000 - ---------- (1) Based upon the closing price on December 31, 2003, as reported on the Nasdaq SmallCap Market and the exercise price per option. Long-Term Incentive Plans--Awards in Last Fiscal Year As of January 1, 1996, we adopted our 1996 Incentive and Non-Qualified Stock Option Plan. An amendment and restatement of such plan, as amended, was adopted on May 3, 2001 and was further refined by the Board of Directors on June 29, 2001 (the "Plan"). The Plan was approved by our stockholders at an annual meeting on August 15, 2001. Stock options may be granted to key employees, consultants and outside directors pursuant to the Plan. The Plan was amended again at our annual meeting on January 8, 2004, when our shareholders voted to increase the maximum number of shares of common stock available for issuance under the Plan from 7,500,000 to 10,000,000. The Plan is administered by a committee (the "Committee") comprised of disinterested directors. The Committee determines persons to be granted stock options, the amount of stock options to be granted to each such person, and the terms and conditions of any stock options as permitted under the Plan. The members of the Committee are Mehmet C. Oz, M.D., Paul G. Savas and Michael Weiner, M.D. Both Incentive Options and Nonqualified Options may be granted under the Plan. An Incentive Option is intended to qualify as an incentive stock option within the meaning of Section 422 of the Internal Revenue Code of 1986, as amended (the "Code"). Any Incentive Option granted under the Plan will have an exercise price of not less than 100% of the fair market value of the shares on the date on which such option is granted. With respect to an Incentive Option granted to an employee who owns more than 10% of the total combined voting stock of SIGA or of any parent or subsidiary of SIGA, the exercise price for such option must be at least 110% of the fair market value of the shares subject to the option on the date the option is granted. The Plan, as amended, provides for the granting of options to purchase 10,000,000 shares of common stock, of which 6,460,811 options were outstanding as of December 31, 2003. During the fiscal year ending December 31, 2003, the named Directors and Officers of SIGA received long-term incentive compensation under the Plan as shown in the following table. - -------------------------------------------------------------------------------------------------------------- Estimated Future Payouts Under Non-Stock Price Based Plans - -------------------------------------------------------------------------------------------------------------- (a) (b) (c) (d) (e) (f) - -------------------------------------------------------------------------------------------------------------- Number of Performance or Shares, Units or Other Period Until Other Rights Maturation of Threshold Target Maximum Name (#) Payout ($ or #) ($ or #) ($ or #) - -------------------------------------------------------------------------------------------------------------- Susan K. Burgess, Ph.D 100,000 5/23/13 N/A N/A N/A Roger Brent, Ph.D 100,000 5/23/13 N/A N/A N/A Charles Cantor, Ph.D 100,000 5/23/13 N/A N/A N/A Bernard L. Kasten, Jr., M.D 100,000 5/23/13 N/A N/A N/A 40

Employment Contracts and Directors Compensation Employment Contracts Thomas N. Konatich, SIGA's Vice President, Chief Financial Officer, Secretary, Treasurer and Acting Chief Executive Officer, is employed by SIGA under an employment agreement dated April 1, 1998, as amended on January 19, 2000, as amended and restated on October 6, 2000, as amended as of January 31, 2002 and as amended on November 5, 2002. This Agreement expires on September 30, 2004 and is cancelable by SIGA only for cause, as defined in the agreement. Mr. Konatich receives an annual base salary of $210,000. He received options to purchase 95,000 shares of common stock, at $4.44 on April 1, 1998. The options vested on a pro rata basis on the first, second, third and fourth anniversaries of the agreement. On January 19, 2000, he received an additional grant to purchase 100,000 shares at an exercise price of $2.00 per share. These options vest on a pro rata basis each quarter through January 19, 2002. On January 31, 2002, Mr. Konatich was granted an "Incentive Stock Option" to purchase 50,000 shares at an exercise price of $3.94 per share. Such options vest in eight equal quarterly installments beginning on April 20, 2002. On November 5, 2002, Mr. Konatich was granted an Incentive Stock Option to purchase 150,000 shares at an exercise price of $2.50 per share. 75,000 of these options vested immediately and 75,000 options vested on September 1, 2003. Mr. Konatich is also eligible to receive additional stock options and bonuses at the discretion of the Board of Directors. Dr. Dennis E. Hruby, Chief Scientific Officer ("CSO"), is employed by SIGA under an employment agreement dated January, 1, 1998, as amended on June 16, 2000, as amended on January 31, 2002, as amended on October 3, 2002. This Agreement expires on December 31, 2005, except that SIGA may terminate the agreement upon 180 days written notice. Dr. Hruby receives a base salary of $210,000 per year. Dr. Hruby received options to purchase 10,000 shares of common stock at an exercise price of $5.00 per share on April 1, 1997 and 40,000 shares of common stock at an exercise price of $4.63 per share on April 1, 1998. The options became exercisable on a pro rata basis on the first, second, third and fourth anniversaries of the agreement. Dr. Hruby is eligible to receive additional stock options and bonuses at the discretion of the Board of Directors. Under the June 16, 2000 amendment, Dr. Hruby was granted options to purchase 125,000 shares of SIGA's common stock at $2.00 per share. The options vest ratably over the remaining term of the amendment. The January 31, 2002 amendment changed the terms of the lock-up agreed to in the June 16, 2000 amendment to the employment agreement limiting Hruby's ability to sell SIGA stock. On January 31, 2002, Dr. Hruby was granted and "Incentive Stock Option" to purchase 50,000 shares at an exercise price of $3.94 per share. Such options vest in four equal annual installments beginning on August 15, 2002. As part of the most recent amendment, Dr. Hruby was granted an option to purchase 300,000 shares of common stock. Options with respect to 75,000 shares vested upon the signing of the amendment and an additional 75,000 shares shall vest on a pro rata basis on September 1 of each 2003, 2004 and 2005. The options have an exercise price of $2.50 per share. As part of the amended agreement, Dr. Hruby surrendered his option to purchase up to 50,000 shares of common stock of SIGA at an exercise price of $3.94 that he was granted under an earlier amendment. Dr. Susan K. Burgess is employed as President of SIGA under an employment agreement, dated May 23, 2003. This agreement expires on December 31, 2005 and is cancelable by SIGA only for Cause (as defined in the agreement). Dr. Burgess receives an annual base salary of $216,000. On the date of the agreement, Dr. Burgess received options to purchase an aggregate of 300,000 shares of our common stock at an exercise price of $1.81 per share. Options to purchase the first 100,000 shares vested on the date of the agreement and options to purchase the remaining shares vest on a pro rata basis on the second and third anniversaries of the agreement. Dr. Burgess is also eligible to receive additional stock options and bonuses at the discretion of the Board of Directors. Directors' Compensation SIGA does not pay fees to its directors, nor does it reimburse its directors for expenses incurred. 41

Item 11. Security Ownership of Certain Beneficial Owners and Management and Related Stockholders Matters The following tables set forth certain information regarding the beneficial ownership of SIGA's voting securities as of March 15, 2004 of (i) each person known to SIGA to beneficially own more than 5% of the applicable class of voting securities, (ii) each director and director nominee of SIGA, (iii) each Named Officer, and (iv) all directors and officers of SIGA as a group. As of March 15, 2004, a total of 23,427,264 shares of common stock and a total of 81,366 shares of Series A preferred stock were outstanding. Each share of common stock and Series A preferred stock is entitled to one vote on matters on which common stockholders are eligible to vote. The column entitled "Percentage of Total Voting Stock" shows the percentage of total voting stock beneficially owned by each listed party. Percentage of Percentage of Name and Address of Amount of Beneficial Common Stock Total Voting Beneficial Owner (1) Ownership (2) Outstanding Stock Outstanding - ------------------- -------------------- ------------- ----------------- Beneficial Holders MacAndrews & Forbes Holdings Inc. (3) 35 East 62nd Street New York, NY 10021 ........................... 5,208,339(4) 21.3 21.2 TransTech Pharma, Inc. ....................... 5,208,333(5) 20.7 20.6 Officers and Directors Donald G. Drapkin (6) 35 East 62nd Street New York, NY 10021 ........................... 1,798,326(7) 7.2 7.2 Roger Brent, Ph.D. 2168 Shattuck--Floor 2 Berkeley, CA 94704 ........................... 125,712(8) * * Charles Cantor, Ph.D. c/o Sequenom Inc. 3595 John Hopkins Court San Diego, CA 92121 .......................... 111,250(9) * * Thomas E. Constance 919 Third Avenue, 41st Floor New York, NY 10022 ........................... 253,467(10) * * Bernard L. Kasten Jr., M.D. 4690 Parkway Drive Cincinnati, OH 45040 ......................... 408,801(11) 1.7 1.7 Adnan M. Mjalli, Ph.D 4170 Mendenhall Oaks Parkway, Suite 110 High Point, NC 27265 ......................... 0(12) - - Mehmet C. Oz, M.D. 177 Fort Washington Ave New York, NY 10032 ........................... 125,000(13) * * Eric A. Rose, M.D. (14) 122 East 78th Street New York, NY 10021 ........................... 790,090(15) 3.3 3.3 Paul G. Savas 35 East 62nd Street New York, NY 10021 ........................... 26,042(16) * * Michael A. Weiner, M.D. 161 Fort Washington Ave. New York, NY 10032 ........................... 125,000(13) * * 42

Percentage of Percentage of Name and Address of Amount of Beneficial Common Stock Total Voting Beneficial Owner (1) Ownership (2) Outstanding Stock Outstanding - ------------------- -------------------- ------------- ----------------- Named Officers Susan K. Burgess, Ph.D.(17) .................. 399,783(18) 1.7 1.7 Thomas N. Konatich ........................... 395,000(19) 1.7 1.7 Dennis E. Hruby, Ph.D ........................ 325,000(19) 1.4 1.4 All Executive Officers and Directors as a group (thirteen persons) ..................... 4,883,471(20) 17.9 17.9 - ---------- * Less than 1% (1) Unless otherwise indicated the address of each beneficial owner identified is 420 Lexington Avenue, Suite 601, New York, NY 10170. (2) Unless otherwise indicated, each person has sole investment and voting power with respect to the shares indicated. For purposes of this table, a person or group of persons is deemed to have "beneficial ownership" of any shares as of a given date which such person has the right to acquire within 60 days after such date. For purposes of computing the percentage of outstanding shares held by each person or group of persons named above on a given date, any security which such person or persons has the right to acquire within 60 days after such date is deemed to be outstanding for the purpose of computing the percentage ownership of such person or persons, but is not deemed to be outstanding for the purpose of computing the percentage ownership of any other person. (3) MacAndrews & Forbes is a direct wholly-owned subsidiary of Mafco Holdings Inc., a holding company whose sole stockholder is Ronald O. Perelman. (4) Includes 1,678,820 shares of common stock issuable upon exercise of warrants. (5) Includes 1,736,111 shares of common stock issuable upon exercise of warrants. (6) Mr. Drapkin is a director and Vice Chairman of Mafco Holdings Inc. and MacAndrews & Forbes and a director of TransTech Pharma. (7) Includes 1,125,000 shares of common stock issuable upon exercise of options, shares of common stock underlying a warrant to purchase up to 347,826 shares of common stock and shares of common stock underlying a warrant to purchase up to 30,500 shares of common stock (the "Drapkin September 2001 Investor Warrant"). However, the Drapkin September 2001 Investor Warrant provides that, with certain limited exceptions, such warrant is not exercisable if, as a result of such exercise, the number of shares of common stock beneficially owned by Mr. Drapkin and his affiliates (other than shares of common stock which may be deemed beneficially owned through the ownership of the unexercised portion of the Drapkin September 2001 Investor Warrant) would exceed 9.99% of the outstanding shares of common stock. Does not include shares of common stock that Mr. Drapkin, as a director and Vice Chairman of Mafco Holdings Inc. and MacAndrews & Forbes or as director of TransTech Pharma, may be deemed to beneficially own and as to which Mr. Drapkin disclaims beneficial ownership. (8) Includes 121,250 shares of common stock issuable upon exercise of options. (9) Includes 112,250 shares of common stock issuable upon exercise of options. (10) Includes 12,200 shares issuable upon exercise of warrants and 225,000 shares of common stock issuable upon exercise of options. (11) Includes 1,350 shares of common stock issuable upon exercise of warrants and 100,000 shares of common stock issuable upon exercise of options. (12) Does not include shares of common stock that Dr. Mjalli, as a director of TransTech Pharma, may be deemed to beneficially own and as to which Dr. Mjalli disclaims beneficial ownership. (13) Includes 12,500 shares issuable upon exercise of warrants and 100,000 shares issuable upon exercise of options. (14) Dr. Rose is a director of TransTech Pharma. (15) Includes 88,610 shares of common stock issuable upon exercise of warrants and 600,000 shares of common stock issuable upon exercise of options. Does not include shares of common stock that Dr. Rose, as a director of TransTech Pharma, may be deemed to beneficially own and as to which Dr. Rose disclaims beneficial ownership. (16) Includes 8,681 shares of common stock issuable upon exercise of warrants. 43

(17) Susan K. Burgess, Ph.D. became SIGA's President on May 23, 2003. (18) Includes 125,000 shares of common stock issuable upon exercise of options. Does not include 5,000 shares of common stock that Dr. Burgess' daughter owns, which Dr. Burgess may be deemed to beneficially own and as to which Dr. Burgess disclaims beneficial ownership. (19) Neither of Messrs. Konatich and Hruby own shares of common stock. All shares listed as beneficially owned by each of Messrs. Konatich and Hruby are shares issuable upon exercise of stock options. (20) See footnotes (6)-(19). Ownership of Series A Preferred Stock Percentage of Series A Name and Address of Preferred Shares Beneficial Owner Amount of Beneficial Ownership Outstanding(1) Alfons Melhon 13,328 18.3% Frank J. and Mary Ann Loccisano 56,490 77.4% J. Jay Lobell 3,174 4.3% - ---------- (1) Percentage of beneficial ownership of Series A Preferred Stock is calculated based on the assumption that there were 81,366 shares of Series A Preferred Stock outstanding on March 15, 2004. Equity Compensation Plan Information The following table sets forth certain equity compensation plan information with respect to both equity compensation plans approved by security holders and equity compensation plans not approved by security holders as of December 31, 2003: - -------------------------------------------------------------------------------------------------------------------- Number of securities remaining available for Number of future issuance securities to under be issued upon equity compensation exercise Weighted-average plans (excluding of outstanding exercise price of securities options, outstanding options, reflected in warrants and rights warrants and rights column (a)) Plan category (a) (b) (c) - ------------- ------------------- ------------------- ------------------- - -------------------------------------------------------------------------------------------------------------------- Equity compensation plans approved by security holders (1)......................... 6,460,811 $2.33 827,064 - -------------------------------------------------------------------------------------------------------------------- Equity compensation plans not approved by security holders............................. 250,000 $2.00 0 - -------------------------------------------------------------------------------------------------------------------- Total........................................ 6,710,811 $2.32 827,064 - -------------------------------------------------------------------------------------------------------------------- (1) SIGA Technologies, Inc., Amended and Restated 1996 Incentive and Non-Qualified Stock Option Plan Item 12. Certain Relationships and Related Transactions Thomas E. Constance, a director of SIGA, is Chairman of Kramer Levin Naftalis & Frankel LLP, a law firm in New York City, which SIGA retained to provide legal services during fiscal year 2003. Donald G. Drapkin, Chairman of the Board of Directors of SIGA, and Eric A. Rose and Adnan M. Mjalli, both directors of SIGA, are also directors with TransTech Pharma, Inc., a company with which we have a collaborative agreement. In addition, TransTech Pharma invested $5.0 million in the Company on January 8, 2004. 44

PART IV Item 13. Exhibits, Material Agreements and Reports on Form 8-K (a) Exhibits Exhibit No. Description - ------- ----------- 2(a) Asset Purchase Agreement, dated as of May 14, 2003, between SIGA Technologies, Inc. and Plexus Vaccine Inc. (Incorporated by reference to Form 8-K of the Company filed June 9, 2003). 3(a) Restated Articles of Incorporation of the Company (Incorporated by reference to Form S-3 Registration Statement of the Company dated May 10, 2000 (No. 333-36682)). 3(b) Bylaws of the Company (Incorporated by reference to Form SB-2 Registration Statement of the Company dated March 10, 1997 (No. 333-23037)). 3(c) Certificate of Designations of Series and Determination of Rights and Preferences of Series A Convertible Preferred Stock of the Company dated July 2, 2001 (Filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002 initially filed with the Securities and Exchange Commission on March 31, 2003). 4(a) Form of Common Stock Certificate (Incorporated by reference to Form SB-2 Registration Statement of the Company dated March 10, 1997 (No. 333-23037)). 4(b) Warrant Agreement dated as of September 15, 1996 between the Company and Vincent A. Fischetti (1) (Incorporated by reference to Form SB-2 Registration Statement of the Company dated March 10, 1997 (No. 333-23037)). 4(c) Warrant Agreement dated as of November 18, 1996 between the Company and David de Weese (1) (Incorporated by reference to Form SB-2 Registration Statement of the Company dated March 10, 1997 (No. 333-23037)). 4(d) Warrant Agreement between the Company and Stefan Capital, dated September 9, 1999 (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1999). 4(e) Registration Rights Agreement, dated as of May 23, 2003, between SIGA Technologies, Inc. and Plexus Vaccine Inc. (Incorporated by reference to Form 8-K of the Company filed June 9, 2003). 4(f) Registration Rights Agreement, dated as of August 13, 2003, between SIGA Technologies, Inc. and MacAndrews & Forbes Holdings Inc. (Incorporated by reference to Form 8-K of the Company filed August 18, 2003). 10(a) License and Research Support Agreement between the Company and The Rockefeller University, dated as of January 31, 1996; and Amendment to License and Research Support Agreement between the Company and The Rockefeller University, dated as of October 1, 1996(2) (Incorporated by reference to Form SB-2 Registration Statement of the Company dated March 10, 1997 (No. 333-23037)). 10(b) Research Agreement between the Company and Emory University, dated as of January 31, 1996(2) (Incorporated by reference to Form SB-2 Registration Statement of the Company dated March 10, 1997 (No. 333-23037)). 10(c) Research Support Agreement between the Company and Oregon State University, dated as of January 31, 1996(2) (Incorporated by reference to Form SB-2 Registration Statement of the Company dated March 45

10, 1997 (No. 333-23037)). Letter Agreement dated as of March 5, 1999 to continue the Research Support Agreement. (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1999). 10(d) Option Agreement between the Company and Oregon State University, dated as of November 30, 1999 and related Amendments to the Agreement (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1999). 10(e) Employment Agreement between the Company and Dr. Kevin F. Jones, dated as of January 1, 1996 (Incorporated by reference to Form SB-2 Registration Statement of the Company dated March 10, 1997 (No. 333-23037)). 10(f) Employment Agreement between the Company and David de Weese, dated as of November 18, 1996(1) (Incorporated by reference to Form SB-2 Registration Statement of the Company dated March 10, 1997 (No. 333-23037)). 10(g) Employment Agreement between the Company and Dr. Dennis Hruby, dated as of April 1, 1997 (Incorporated by reference to Amendment No. 1 to Form SB-2 Registration Statement of the Company dated July 11, 1997 (No. 333-23037)). 10(h) Clinical Trials Agreement between the Company and National Institute of Allergy and Infectious Diseases, dated as of July 1, 1997 (Incorporated by reference to Amendment No. 1 to Form SB-2 Registration Statement of the Company dated July 11, 1997 (No. 333-23037)). 10(i) Research Agreement between the Company and The Research Foundation of State University of New York, dated as of July 1, 1997(2) (Incorporated by reference to Amendment No. 1 to Form SB-2 Registration Statement of the Company dated July 11, 1997 (No. 333-23037)). 10(j) Collaborative Research and License Agreement between the Company and Wyeth, dated as of July 1, 1997(2) (Incorporated by reference to Amendment No. 3 to Form SB-2 Registration Statement of the Company dated September 2, 1997 (No. 333-23037)). 10(k) Research Collaboration and License Agreement between the Company and The Washington University, dated as of February 6, 1998 (2). (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1997). 10(l) Settlement Agreement and Mutual Release between the Company and The Washington University, dated as of February 17, 2000 (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1999). 10(m) Technology Transfer Agreement between the Company and MedImmune, Inc., dated as of February 10, 1998. (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1997). 10(n) Employment Agreement between the Company and Dr. Dennis Hruby, dated as of January 1, 1998. (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1997). Amendment to the Agreement, dated as of October 15, 1999 (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1999). Amendment to the Agreement dated as of June 12, 2000). 10(o) Employment Agreement between the Company and Thomas Konatich, dated as of April 1, 1998. (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1997). Extension and Amendment of the Agreement, dated as of January 19, 2000 (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1999). Amendment and Restatement of the Agreement, dated as of October 6, 2000 46

(Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 2000). 10(p) Option Agreement between the Company and Ross Products Division of Abbott Laboratories, dated February 28, 2000 (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 1999). 10(q) Agreement between the Company and Oregon State University for the Company to provide contract research services to the University dated September 24, 2000. (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 2000). 10(r) License and Research Agreements between the Company and the Regents of the University of California dated December 6, 2000. (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 2000). 10(s) Amended and Restated 1996 Incentive and Non-Qualified Stock Option Plan dated August 15, 2001 (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 2001). 10(t) Amendment to Employment Agreement between the Company and Dr. Dennis Hruby dated as of January 31, 2002 (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 2001). 10(u) Amendment and Waiver to Employment Agreement between the Company and Thomas Konatich dated as of January 31, 2002 (Incorporated by reference to the Company's Annual Report on Form 10-KSB for the year ended December 31, 2001). 10(v) Small Business Innovation Grant to the Company from the National Institutes of Health dated May 17, 2002 (Filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002 initially filed with the Securities and Exchange Commission on March 31, 2003). 10(w) Research and License Agreement between the Company and TransTech Pharma, Inc. dated October 1, 2002 (Filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002 initially filed with the Securities and Exchange Commission on March 31, 2003). 10(x) Amendment to Employment Agreement between the Company and Denis Hruby dated October 1, 2002 (Filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002 initially filed with the Securities and Exchange Commission on March 31, 2003). 10(y) Retainer Agreement between the Company and Saggi Captial, Inc., dated November 1, 2002 (Filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002 initially filed with the Securities and Exchange Commission on March 31, 2003). 10(z) Retainer Agreement between the Company and Bridge Ventures, Inc., dated November 1, 2002 (Filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002 initially filed with the Securities and Exchange Commission on March 31, 2003). 10(aa) Amendment to Employment Agreement between the Company and Thomas N. Konatich, dated November 5, 2002 (Filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002 initially filed with the Securities and Exchange Commission on March 31, 2003). 10(bb) Contract between the Company and the Department of the US Army dated December 12, 2002 (Filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002 initially filed with the Securities and Exchange Commission on March 31, 2003). 47

10(cc) Contract between the Company and Four Star Group dated February 5, 2003 (Filed with the Company's Annual Report on Form 10-KSB for the year ended December 31, 2002 initially filed with the Securities and Exchange Commission on March 31, 2003). 10(dd) Employment Agreement, dated as of May 23, 2003, between SIGA Technologies, Inc. and Susan K. Burgess, Ph.D. (Incorporated by reference to Form 8-K of the Company filed June 9, 2003). 10(ee) Securities Purchase Agreement, dated as of August 13, 2003, between SIGA Technologies, Inc. and MacAndrews & Forbes Holdings Inc. (Incorporated by reference to Form 8-K of the Company filed August 18, 2003). 10(ff) Letter Agreement dated October 8, 2003 among SIGA Technologies, Inc., MacAndrews & Forbes Holdings Inc. and TransTech Pharma, Inc. (Incorporated by reference to Form 8-K of the Company filed August 18, 2003). 14 SIGA Technologies, Inc. Code of Ethics and Business Conduct (filed herewith). 23.1 Consent of Independent Accountants (filed herewith). 31.1 Certification of Acting Chief Executive Officer and Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 (filed herewith). 32.1 Certification of Acting Chief Executive Officer and Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (filed herewith). 99.1 Charter of Audit Committee (filed herewith). - ---------- (1) These agreements were entered into prior to the reverse split of the Company's Common Stock and, therefore, do not reflect such reverse split. (2) Confidential information is omitted and identified by an * and filed separately with the SEC with a request for Confidential Treatment. (b) Reports on Form 8-K On October 9, 2003, we filed with the SEC a report on Form 8-K, pursuant to which we reported under Item 5 that, on October 8, 2003, (i) MacAndrews & Forbes will immediately invest $2,159,405 in SIGA in exchange for 1,499,587 shares of our common stock at a price of $1.44 per share and warrants to purchase up to an additional 749,794 shares of common stock at an exercise price of $2.00 per share; and (ii) following approval of our stockholders, as required under the rules of the Nasdaq SmallCap Market, MacAndrews & Forbes will invest $1,840,595 in us in exchange for 1,278,191 shares of our common stock and warrants to purchase up to an additional 639,095 shares of common stock on the same terms, and TransTech Pharma will invest $5,000,000 in us in exchange for 3,472,222 shares of our common stock and warrants to purchase up to an additional 1,736,111 shares of our common stock on the same terms. Item 14. Principal Accountant Fees and Services Current Year Audit Fees PricewaterhouseCoopers LLP billed SIGA $203,150 in the aggregate, for professional services rendered by them for the audit of SIGA's annual financial statements for the fiscal year ended December 31, 2003, reviews of the interim financial statements included in SIGA's forms 10-QSB filed during the year ended December 31, 2003 and consents and reviews of various documents filed with the SEC during the year ended December 31, 2003. Audit Related Fees PricewaterhouseCoopers LLP billed SIGA $62,700 in the aggregate for audit and related services rendered with regard to its acquisition of substantially all the assets of Plexus Vaccine Inc. during the fiscal year ended December 31, 2003. 48

Prior Year Proxy Audit Fees PricewaterhouseCoopers LLP billed SIGA $101,580 in the aggregate, for professional services rendered by them for the audit of SIGA's annual financial statements for the fiscal year ended December 31, 2002, and the reviews of the interim financial statements included in SIGA's forms 10-QSB filed during the year ended December 31, 2002. All Other Fees PricewaterhouseCoopers LLP billed SIGA $255,690 in the aggregate for assurance and related services rendered primarily with regard to its proposed acquisition of Allergy Therapeutics Holdings Ltd. during the fiscal year ended December 31, 2002. Policy on Audit Committee Pre-Approval of Audit and Permissible Non-Audit Services of Independent Auditors The Audit Committee's policy is to pre-approve all audit and permissible non-audit services provided by the independent auditors. These services may include audit services, audit-related services, tax services, and other services. 49

SIGNATURES Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized. SIGA TECHNOLOGIES, INC. (Registrant) Date: March 30, 2004 By: /s/ Thomas N. Konatich ------------------------------------ Thomas N. Konatich Chief Financial Officer & Acting Chief Executive Officer Pursuant to the requirements of the Securities Act of 1934, this report has been signed below by the following persons on behalf of the registrant and in the capacities and on the dates indicated. Signature Title of Capacities Date /s/ Thomas N. Konatich Acting Chief Executive Officer - -------------------------------- and Chief Financial Officer March 30, 2004 Thomas N. Konatich /s/ Donald G. Drapkin - -------------------------------- Donald G. Drapkin Chairman of the Board March 30, 2004 /s/ Roger Brent, Ph.D. - -------------------------------- Roger Brent, Ph.D. Director March 30, 2004 /s/ Charles Cantor, Ph.D. - -------------------------------- Charles Cantor, Ph.D. Director March 30, 2004 /s/ Thomas E. Constance - -------------------------------- Thomas E. Constance Director March 30, 2004 /s/ Bernard L. Kasten, Jr., M.D. - -------------------------------- Bernard L. Kasten, Jr., M.D. Director March 30, 2004 /s/ Adnan M. Mjalli, Ph.D. - -------------------------------- Adnan M. Mjalli, Ph.D. Director March 30, 2004 /s/ Mehmet C. Oz, M.D. - -------------------------------- Mehmet C. Oz, M.D. Director March 30, 2004 - -------------------------------- Eric A. Rose, M.D. Director March __, 2004 /s/ Paul G. Savas - -------------------------------- Paul G. Savas Director March 30, 2004 - -------------------------------- Michael Weiner, M.D. Director March __, 2004 50

Table of Contents Report of Independent Auditors ............................................................... F-2 Consolidated Balance Sheets as of December 31, 2003 and 2002 ................................. F-3 Consolidated Statement of Operations for the years ended December 31, 2003 and 2002 .......... F-4 Consolidated Statement of Changes in Stockholders' Equity for the years ended December 31, 2003 and 2002 ........................................................................... F-5 Consolidated Statement of Cash Flows for the years ended December 31, 2003 and 2002 .......... F-7 Notes to Financial Statements ................................................................ F-8 F - 1

Report of Independent Auditors To the Board of Directors and Stockholders of SIGA Technologies, Inc.: In our opinion, the accompanying consolidated balance sheets and the related consolidated statements of operations, of cash flows and of changes in stockholders' equity present fairly, in all material respects, the financial position of SIGA Technologies, Inc. at December 31, 2003 and 2002, and the results of their operations and their cash flows for each of the two years in the period ended December 31, 2003 in conformity with accounting principles generally accepted in the United States of America. These financial statements are the responsibility of the Company's management; our responsibility is to express an opinion on these financial statements based on our audits. We conducted our audits of these statements in accordance with auditing standards generally accepted in the United States of America, which require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includes examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. We believe that our audits provide a reasonable basis for our opinion. /s/ PRICEWATERHOUSECOOPERS LLP February 17, 2004 New York, New York F-2

SIGA TECHNOLOGIES, INC. CONSOLIDATED BALANCE SHEETS As of December 31, 2003 and 2002 December 31, December 31, 2003 2002 ------------ ------------ ASSETS Current Assets Cash and cash equivalents ............................................ $ 1,440,724 $ 2,069,004 Accounts receivable .................................................. 38,786 60,151 Prepaid expenses ..................................................... 50,338 104,227 ------------ ------------ Total current assets ............................................... 1,529,848 2,233,382 Equipment, net ....................................................... 379,046 432,442 Goodwill ............................................................. 898,334 -- Intangible assets, net ............................................... 3,117,357 -- Other assets ......................................................... 174,995 164,168 ------------ ------------ Total assets ....................................................... $ 6,099,580 $ 2,829,992 ============ ============ LIABILITIES AND STOCKHOLDERS' EQUITY Current liabilities Accounts payable ..................................................... $ 353,051 $ 461,146 Accrued expenses and other ........................................... 195,181 184,554 Capital lease obligations ............................................ -- 11,206 ------------ ------------ Total liabilities .................................................. 548,232 656,906 Commitments and contingencies Stockholders' equity Series A convertible preferred stock ($.0001 par value, 10,000,000 shares authorized, 81,366 and 410,760 issued and outstanding at December 31, 2003 and December 31, 2002, respectively) ............. 72,666 443,674 Common stock ($.0001 par value, 50,000,000 shares authorized, 18,676,851 and 12,902,053 issued and outstanding at December 31, 2003 and December 31, 2002, respectively) ...................... 1,868 1,293 Additional paid-in capital ........................................... 40,284,856 32,051,461 Stock subscriptions outstanding ...................................... -- (791,940) Accumulated deficit .................................................. (34,808,042) (29,531,402) ------------ ------------ Total stockholders' equity ......................................... 5,551,348 2,173,086 ------------ ------------ Total liabilities and stockholders' equity ......................... $ 6,099,580 $ 2,829,992 ============ ============ The accompanying notes are an integral part of these financial statements. F-3

SIGA TECHNOLOGIES, INC. CONSOLIDATED STATEMENT OF OPERATIONS For the Years Ended December 31, 2003 and 2002 Year ended December 31, 2003 2002 ------------ ------------ Revenues Research and development contracts .................... $ 731,743 $ 344,450 ------------ ------------ Operating expenses Selling, general and administrative ........................ 2,646,586 1,838,470 Research and development .............................. 2,942,809 1,766,368 Patent preparation fees ............................... 300,494 104,700 Loss on impairment of intangible asset ................ 136,750 -- ------------ ------------ Total operating expenses .......................... 6,026,639 3,709,538 ------------ ------------ Operating loss .................................... (5,294,896) (3,365,088) Interest income, net ....................................... 18,256 34,061 ------------ ------------ Net loss .......................................... $ (5,276,640) $ (3,331,027) Deemed dividend related to beneficial conversion feature ... -- 29,200 ------------ ------------ Net loss applicable to common shareholders ........ $ (5,276,640) $ (3,360,227) ============ ============ Weighted average shares outstanding: basic and diluted ..... 15,717,138 10,450,529 ============ ============ Net loss per share: basic and diluted ...................... $ (0.34) $ (0.32) ============ ============ The accompanying notes are an integral part of these financial statements. F-4

SIGA TECHNOLOGIES, INC. CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY For the Years Ended December 31, 2003 and 2002 Series A Convertible Preferred Stock Common Stock -------------------------- ------------------------- Shares Amount Shares Amount Balance at December 31, 2001 379,294 $ 398,441 10,139,553 $ 1,016 Net proceeds from issuance of common stock 2,737,500 274 ($1.00 to $1.09 per share) Issuance of common shares upon exercise of stock options 25,000 3 Issuance of preferred stock to settle dividends payable 31,466 45,233 Amortization of deferred compensation Stock options issued to non-employee Deemed dividend related to beneficial conversion feature Net loss -------- ------------ ---------- ---------- Balance at December 31, 2002 410,760 443,674 12,902,053 1,293 ======== ============ ========== ========== Net proceeds from issuance of common stock ($1.20 to 3,444,031 344 $1.44 per share) Issuance of common stock upon acquisition 1,950,000 195 Issuance of stock options and warrants upon acquisition Issuance of common stock upon exercise of stock options and warrants 27,582 3 Conversion of preferred stock to common stock (353,185) (371,008) 353,185 33 Issuance of preferred stock for anti-dilution 23,791 Stock options issued to non-employee Receipt of stock subscriptions outstanding Net loss -------- ------------ ---------- ---------- Balance at December 31, 2003 81,366 $ 72,666 18,676,851 $ 1,868 ======== ============ ========== ========== The accompanying notes are an integral part of these financial statements. (Continued) F-5

SIGA TECHNOLOGIES, INC. CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY For the Years Ended December 31, 2003 and 2002 Additional Stock Total Paid-in Deferred Subscriptions Accumulated Stockholders' Capital Compensation Outstanding Deficit Equity Balance at December 31, 2001 $29,348,786 $(35,583) $ -- $ (26,171,175) $ 3,541,485 Net proceeds from issuance of common stock 2,559,924 (791,940) 1,768,258 ($1.00 to $1.09 per share) Issuance of common shares upon exercise of 28,093 28,096 stock options Issuance of preferred stock to settle 45,233 dividends payable Amortization of deferred compensation 35,583 35,583 Stock options issued to non-employee 85,458 85,458 Deemed dividend related to beneficial 29,200 (29,200) conversion feature Net loss (3,331,027) (3,331,027) ----------- -------- --------- ------------- ----------- Balance at December 31, 2002 32,051,461 -- (791,940) (29,531,402) 2,173,086 =========== ======== ========= ============= =========== Net proceeds from issuance of common stock 4,171,652 4,171,996 ($1.20 to $1.44 per share) Issuance of common stock upon acquisition 3,408,805 3,409,000 Issuance of stock options and warrants 255,873 255,873 upon acquisition Issuance of common stock upon exercise of 24,715 24,718 stock options and warrants Conversion of preferred stock for common 370,975 -- stock Issuance of preferred stock for -- anti-dilution Stock options issued to non-employee 1,375 1,375 Receipt of stock subscriptions outstanding 791,940 791,940 Net loss (5,276,640) (5,276,640) ----------- -------- --------- ------------- ----------- Balance at December 31, 2003 $40,284,856 $ -- $ -- $ (34,808,042) $ 5,551,348 =========== ======== ========= ============= =========== F-6

SIGA TECHNOLOGIES, INC. CONSOLIDATED STATEMENT OF CASH FLOWS For the Years Ended December 31, 2003 and 2002 Year Ended December 31, 2003 2002 ----------- ----------- Cash flows from operating activities: Net loss $(5,276,640) $(3,331,027) Adjustments to reconcile net loss to net cash used in operating activities: Bad debt expense 26,000 -- Loss on impairment of intangible asset 136,750 -- Depreciation 354,667 317,032 Amortization of intangible assets 384,893 -- Stock, options & warrant compensation 1,375 121,041 Changes in assets and liabilities: Accounts receivable (4,635) (5,151) Prepaid expenses 53,889 49,189 Other assets (10,827) (16,295) Accounts payable and accrued expenses (997,640) 216,926 ----------- ----------- Net cash used in operating activities (5,332,168) (2,648,285) ----------- ----------- Cash flows from investing activities: Capital expenditures (273,560) (46,235) ----------- ----------- Net cash used in investing activities (273,560) (46,235) Cash flows from financing activities: Net proceeds from issuance of common stock 4,171,996 1,768,258 Receipts of stock subscriptions outstanding 791,940 -- Proceeds from exercise of options and warrants 24,718 28,096 Principal payments on capital lease obligations (11,206) (180,990) ----------- ----------- Net cash provided from financing activities 4,977,448 1,615,364 ----------- ----------- Net decrease in cash and cash equivalents (628,280) (1,079,156) Cash and cash equivalents at beginning of period 2,069,004 3,148,160 ----------- ----------- Cash and cash equivalents at end of period $ 1,440,724 $ 2,069,004 =========== =========== Supplemental information of business acquired Fair value of assets acquired: Equipment $ 27,711 $ -- Intangible assets 3,639,000 -- Goodwill 898,334 -- Less, liabilities assumed and non-cash consideration: Current liabilities (494,142) -- Stock issued (3,409,000) -- Stock options and warrants issued (255,873) -- Acquisition costs (406,030) -- Non cash supplemental information: Conversion of preferred stock to common stock $ 371,008 $ -- The accompanying notes are an integral part of these financial statements. F-7

SIGA TECHNOLOGIES, INC. NOTES TO FINANCIAL STATEMENTS 1. Organization and Basis of Presentation Organization SIGA Technologies, Inc. ("SIGA" or the "Company") was incorporated in the State of Delaware on December 28, 1995 as SIGA Pharmaceuticals, Inc. The Company is engaged in the discovery, development and commercialization of vaccines, antibiotics, and novel anti-infectives for the prevention and treatment of infectious diseases. On May 23, 2003, the Company acquired substantially all of the assets of Plexus Vaccine Inc. ("Plexus") and assumed certain liabilities in exchange for 1,950,000 shares of the Company's common stock and 190,950 of the Company's options and warrants at an exercise price of $1.62 per share. Plexus is a structure-based rational vaccine design and development company directed toward the convergence of structural biology, pharmacogenomics and molecular immunology. Plexus is employing its technologies to formulate and test a vaccine candidate for severe acute respiratory syndrome, or "SARS". Basis of presentation The accompanying financial statements have been prepared on a basis, which assumes that the Company will continue as a going concern and which contemplates the realization of assets and the satisfaction of liabilities and commitments in the normal course of business. The Company has incurred cumulative net losses and expects to incur additional losses to perform further research and development activities. The Company does not have commercial products and has limited capital resources. Management's plans with regard to these matters include continued development of its products as well as seeking additional research support funds and financial arrangements. Although management continues to pursue these plans, there is no assurance that the Company will be successful in obtaining sufficient financing on terms acceptable to the Company. See Note 4 for recent private placement offerings. 2. Summary of Significant Accounting Policies Cash and cash equivalents Cash and cash equivalents consist of short term, highly liquid investments, with original maturities of less than three months when purchased and are stated at cost. Interest is accrued as earned. Equipment Equipment is stated at cost. Depreciation is provided on the straight-line method over the estimated useful lives of the respective assets, which are as follows: laboratory equipment - 5 years; leasehold improvements - life of lease; computer equipment - 3 years; furniture and fixtures - 7 years. Revenue Recognition The Company recognizes revenue in accordance with SEC Staff Accounting Bulletin No. 101, "Revenue Recognition in Financial Statements" as amended ("SAB 101"). SAB 101 requires that four basic criteria must be met before revenue can be recognized: (1) persuasive evidence of an arrangement exists; (2) delivery has occurred or services rendered; (3) the fee is fixed or determinable; and (4) collectibility is reasonably assured. Under the provisions of SAB 101, the Company recognizes revenue from government research grants, contract research and development and progress payments as services are performed, provided a contractual arrangement exists, the contract price is fixed or determinable, and the collection of the resulting receivable is probable. In situations where the Company receives payment in advance of the performance of services, such amounts are deferred and recognized as revenue as the related services are performed. Non-refundable fees are recognized as revenue over the term of the arrangement or based on the percentage of costs incurred to date, estimated costs to complete and total expected contract revenue. Milestones, which generally are related to substantial scientific or technical achievement, are recognized as revenue when the milestone is accomplished. F-8

Research and development Research and development costs are expensed as incurred and include costs of third parties who conduct research and development, pursuant to development and consulting agreements, on behalf of the Company. Costs related to the acquisition of technology rights, for which development work is still in process, and that have no alternative future uses, are expensed as incurred and considered a component of research and development costs. Business Combinations, Goodwill and Intangible Assets The Company accounts for business combinations in accordance with the provisions of Statement of Financial Accounting Standards No. 141 "Business Combinations" ("SFAS 141"). SFAS 141 requires business combinations completed after June 30, 2001 to be accounted for using the purchase method of accounting. It also specifies the types of acquired intangible assets required to be recognized and reported separately from goodwill. The Company accounts for the impairment of goodwill in accordance with the provisions of Statement of Financial Accounting Standards No. 142 "Goodwill and Other Intangible Assets" ("SFAS 142"). Goodwill is not subject to amortization and is tested for impairment annually, or more frequently if events or changes in circumstances indicate that the asset may be impaired. The impairment test consists of a comparison of the fair value of goodwill with its carrying amount. If the carrying amount of goodwill exceeds its fair value, a second step of the goodwill impairment test shall be performed to measure the amount of impairment loss, if any. After an impairment loss is recognized, the adjusted carrying amount of goodwill is its new accounting basis. The annual impairment testing required under SFAS 142 requires management to make assumptions and judgments regarding the estimated fair value of the Company's goodwill. Such assumptions include the present value discount factor used to determine the fair value of a reporting unit, which is ultimately used to identify potential goodwill impairment. Such estimated fair values might produce significantly different results if other reasonable assumptions and estimates were to be used. The Company accounts for the impairment of long-lived assets such as acquired technology, non-compete agreements and research contracts in accordance with the provisions of Statement of Financial Accounting Standards No. 144 "Accounting for the Impairment or Disposal of Long-Lived Assets" ("SFAS 144"). SFAS 144 requires that long-lived assets be reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the asset may not be recoverable. The Company compares the carrying amount of the asset to the estimated undiscounted future cash flows expected to result from the use of the asset. If the carrying amount of the asset exceeds estimated expected undiscounted future cash flows, the Company records an impairment charge for the difference between the carrying amount of the asset and its fair value. Changes in events or circumstances to the Company that may affect long-lived assets include, but are not limited to, cancellations or terminations of research contracts or pending government research grants. Income taxes Income taxes are accounted for under the asset and liability method prescribed by Statement of Financial Accounting Standards No. 109, "Accounting for Income Taxes." Deferred income taxes are recorded for temporary differences between financial statement carrying amounts and the tax basis of assets and liabilities. Deferred tax assets and liabilities reflect the tax rates expected to be in effect for the years in which the differences are expected to reverse. A valuation allowance is provided if it is more likely than not that some or all of the deferred tax asset will not be realized. Net loss per common share The Company computes, presents and discloses earnings per share in accordance with SFAS 128 "Earnings Per Share" ("EPS") which specifies the computation, presentation and disclosure requirements for earnings per share of entities with publicly held common stock or potential common stock. The statement defines two earnings per share calculations, basic and diluted. The objective of basic EPS is to measure the performance of an entity over the reporting period by dividing income (loss) by the weighted average shares outstanding. The objective of diluted EPS is consistent with that of basic EPS, that is to measure the performance of an entity over the reporting period, while giving effect to all dilutive potential common shares that were outstanding during the period. The calculation of diluted EPS is similar to basic EPS except the denominator is increased for the conversion of potential common shares. At December 31, 2003 and 2002, 81,366 and 410,760 shares, respectively, of the Company's Series A convertible preferred stock have been excluded from the computation of diluted loss per share as they are anti-dilutive. At F-9

December 31, 2003 and 2002, outstanding options to purchase 6,460,811 and 5,807,561 shares, respectively, of the Company's common stock with exercise prices ranging from $1.00 to $5.50 have been excluded from the computation of diluted loss per share as they are anti-dilutive. At December 31, 2003 and 2002, outstanding warrants to purchase 6,286,332 and 4,675,144 shares, respectively, of the Company's common stock, with exercise prices ranging from $1.00 to $3.63 have been excluded from the computation of diluted loss per share as they are anti-dilutive. Accounting estimates The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of expenses during the reporting period. Significant estimates include the fair value of goodwill and intangible assets and the value of options and warrants granted by the Company. Actual results could differ from those estimates. Fair value of financial instruments The carrying value of cash and cash equivalents, accounts payable and accrued expenses approximates fair value due to the relatively short maturity of these instruments. Concentration of credit risk The Company has cash in bank accounts that exceed the FDIC insured limits. The Company has not experienced any losses on its cash accounts. No allowance has been provided for potential credit losses because management believes that any such losses would be minimal. Accounting for stock based compensation The Company has elected to account for its stock-based compensation programs according to the provisions of Accounting Principles Board Opinion No. 25, "Accounting for Stock Issued to Employees" ("APB 25"). Accordingly, compensation expense has been recognized to the extent of employee or director services rendered based on the intrinsic value of compensatory options or shares granted under the plans. The Company has adopted the disclosure provisions required by Financial Accounting Standard No. 123, "Accounting for Stock-Based Compensation" ("SFAS 123"), as amended by SFAS 148, "Accounting for Stock-Based Compensation - Transaction and Disclosure, an amendment to FASB Statement No. 123." Had compensation cost for stock options granted been determined based upon the fair value at the grant date for awards, consistent with the methodology prescribed under SFAS 123, the Company's net loss and net loss per share would have been as follows: Years ended December 31, ---------------------------- 2003 2002 ------------ ------------ Net loss applicable to common shareholders, as reported ........... ($5,276,640) ($3,360,227) Add: Stock-based employee compensation expense recorded under APB No. 25 ........................................................ -- 35,583 Deduct: Total stock-based employee compensation expense determined under fair value based method for all awards, net of related tax effects ............................................... (687,766) (153,882) Pro forma net loss applicable to common shareholders .............. ($5,964,406) ($3,478,526) Net loss per share: Basic and diluted -as reported ............................... $ (0.34) $ (0.32) Basic and diluted -pro forma ................................. $ (0.38) $ (0.33) F-10

The fair value of the options granted to employees during 2003 and 2002 ranged from $0.09 to $2.75 on the date of the respective grant using the Black-Scholes option-pricing model. The following weighted-average assumptions were used for 2003: no dividend yield, expected volatility of 100%, risk free interest rates of 2.89%-3.24% and an expected term of 3 to 5 years. The following weighted-average assumptions were used for 2002: no dividend yield, expected volatility of 100%, risk free interest rates of 2.87%-4.50% and an expected term of 3 to 5 years. Recent pronouncements In December of 2003, the Staff of the Securities and Exchange Commission issued Staff Accounting Bulletin No. 104 (SAB 104), "Revenue Recognition", which supercedes SAB 101, "Revenue Recognition in Financial Statements". SAB 104's primary purpose is to rescind accounting guidance contained in SAB 101 related to multiple element revenue arrangements, superceded as a result of the issuance of EITF 00-21, "Accounting for Revenue Arrangements with Multiple Deliverables". While the wording of SAB 104 has changed to reflect the issuance of EITF 00-21, the revenue recognition principles of SAB 101 remain largely unchanged by the issuance of SAB 104. The adoption of SAB 104 did not have a material effect on the Company's results of operations, financial position or cash flows. In March of 2003, the Emerging Issues Task Force (EITF) issued EITF No. 00-21, "Accounting for Revenue Arrangements with Multiple Deliverables". EITF No. 00-21 addresses how to determine whether a revenue arrangement involving multiple deliverables contains more than one unit of accounting for revenue recognition purposes, and how consideration should be measured and allocated to the separate accounting units. EITF No. 00-21 applies to all deliverables within contractually binding arrangements in all industries, except to the extent that a deliverable in a contractual arrangement is subject to other existing higher-level authoritative literature. EITF No. 00-21 became effective for revenue arrangements entered into after July 1, 2003. The adoption of EITF No. 00-21 did not have a material effect on the Company's financial position or results of operations. In December of 2003, the FASB revised its FASB Interpretation No. 46, "Consolidation of Variable Interest Entities" (FIN 46R). FIN 46R clarifies the application of Accounting Research Bulletin No. 51, "Consolidated Financial Statements". FIN 46R requires that a business enterprise review all of its legal structures used to conduct its business activities, including those to hold assets, and its majority-owned subsidiaries, to determine whether those legal structures are variable interest entities (VIEs) required to be consolidated for financial reporting purposes by the business enterprise. A VIE is a legal structure for which the holders of a majority voting interest may not have a controlling financial interest in the legal structure. FIN 46R provides guidance for identifying those legal structures and provides guidance for determining whether a business enterprise shall consolidate a VIE. FIN 46R requires that a business enterprise that holds a significant variable interest in a VIE make new disclosures in their financial statements. The Company is required to adopt the provisions of FIN 46R for its interim period ending March 31, 2004. The Company does not believe that it holds any interests in VIEs that would require consolidation or additional disclosures. In May of 2003, the FASB issued SFAS No. 150, "Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity". This Statement applies to certain financial instruments, including mandatorily redeemable financial instruments that, prior to SFAS No. 150 could have been accounted for as a component of equity. SFAS No. 150 requires that those instruments be classified as liabilities in statements of financial position. SFAS No. 150 also requires disclosures about alternative ways of settling the instruments and the capital structure of entities whose shares are all mandatorily redeemable. SFAS No. 150 is effective for these financial instruments entered into or modified after May 31, 2003. For these financial instruments entered into before May 31, 2003, SFAS No. 150 became effective for the interim period beginning July 1, 2003. The Company does not hold any financial instruments that are within the scope of SFAS No. 150. Accordingly, SFAS No. 150 did not have a material effect on the Company's results of operations or financial position. 3. Business Acquisition On May 23, 2003, the Company acquired substantially all of the assets of Plexus and assumed certain liabilities in exchange for 1,950,000 shares of the Company's common stock and 190,950 of the Company's options and F-11

warrants at an exercise price of $1.62 per share. The results of operations of Plexus have been included in the statement of operations of the combined entity since May 23, 2003. In determining the non-cash purchase price of Plexus, the equity consideration has been calculated based on Emerging Issues Task Force ("EITF") No. 99-12, "Accounting for Formula Arrangements under EITF 95-19". For this calculation, the Company used the average market price for a few days before and after May 14, 2003. Based on EITF 99-12, the value of the common stock issued was approximately $3,409,000. The value attributed to the options and warrants exchanged was approximately $255,873. In addition, loans made to Plexus, payments made on behalf of Plexus prior to the asset purchase agreement and costs incurred for the transaction amounted to $406,030. The allocation of the total purchase price of $4,070,903 is as follows: Useful Life Fair Value ----------- ---------- Equipment, net 3 - 7 years $ 27,711 Liabilities assumed N/A (494,142) Acquired technology 10 years 2,191,000 Customer contract and grants 3 1/2 years 741,000 Covenant not to compete 3 1/2 years 707,000 Goodwill Indefinite 898,334 ----------- Purchase Price $ 4,070,903 =========== Accumulated amortization of intangible assets for the year ended December 31, 2003 was approximately $385,000 which was approximately $135,000 for acquired technology, approximately $125,000 for customer contact and grants, and approximately $125,000 for the covenant not to compete. The Company anticipates amortization expense to be approximately $593,750, $593,750, $593,750, $219,100, and $219,100 for the fiscal years ending December 31, 2004, 2005, 2006, 2007 and 2008, respectively. Selected Unaudited Pro Forma Financial Information The Company has prepared a condensed pro forma statement of operations in accordance with SFAS 141, for the years ended December 31, 2003 and 2002 as if Plexus were part of the Company as of January 1, 2003 and 2002, respectively. Years Ended December 31, 2003 2002 ------------ ------------ Revenues $ 826,525 $ 516,828 Net loss $ (7,527,206) $ (5,398,730) Net loss per common share - basic and diluted $ (0.46) $ (0.44) Weighted average number of common shares outstanding 16,481,110 12,400,529 In the fourth quarter of 2003, the customer contract acquired with the acquisition of Plexus was cancelled. Based on the fact that there will be no future cash flows from this contract, the Company recognized an impairment loss of $136,750 as part of operating expenses in the year ended December 31, 2003 for the unamortized intangible asset amount. 4. Stockholders' Equity At December 31, 2003, the Company's authorized share capital consisted of 60,000,000 shares, of which 50,000,000 are designated common shares and 10,000,000 are designated preferred shares. The Company's Board of Directors is authorized to issue preferred shares in series with rights, privileges and qualifications of each series determined by the Board. F-12

2003 Placements In June 2003, the Company raised gross proceeds of $1.5 million in a private offering for 1,250,000 shares of common stock. In connection with the offering the Company issued warrants to purchase 625,000 shares of the Company's common stock to placement agents. Each of the warrants are exercisable at a price of $2.00 per share and have a term of five years. In August 2003, the Company entered into a securities purchase agreement with MacAndrews & Forbes Holdings Inc. ("MacAndrews & Forbes"), a holding company of which the Company's Chairman of the Board of Directors is Vice Chairman and a director, pursuant to which, among other things, the Company raised gross proceeds of $1.0 million from MacAndrews & Forbes and certain of its employees, in exchange for 694,444 shares of the Company's common stock at a price of $1.44 per share and warrants to purchase an additional 347,222 shares of the Company's common stock at an exercise price of $2.00 per share. In addition, MacAndrews & Forbes and certain of its employees were granted an option, exercisable through October 13, 2003, to invest up to an additional $9.0 million in the Company on the same terms. In October 2003, MacAndrews & Forbes, certain of its employees and TransTech Pharma, Inc., a related party to the Company and an affiliate of MacAndrews & Forbes ("TransTech Pharma"), exercised their option to invest $9.0 million in the Company, in exchange for an aggregate of 6,250,000 shares of common stock of the Company's common stock, and warrants to purchase up to an aggregate of 3,125,000 shares of the Company's common stock at an exercise price of $2.00 per share, in accordance with and subject to the terms and conditions of the securities purchase agreement signed in August 2003, as amended. Immediately prior to the exercise of such option, MacAndrews & Forbes assigned the right to invest up to $5.0 million in the Company to TransTech Pharma. The Company and TransTech Pharma are parties to a drug discovery collaboration agreement signed in October 2002 (see Note 6). In accordance with and subject to the terms and conditions of the securities purchase agreement, MacAndrews & Forbes and certain of its employees invested $2.2 million in exchange for 1,499,587 shares of the Company's common stock at a price of $1.44 per share and received warrants to purchase up to an additional 749,794 shares of common stock at an exercise price of $2.00 per share. In January 2004, MacAndrews & Forbes and TransTech Pharma completed the final portion of their investment, following the approval of the Company's stockholders at its annual meeting of stockholders held on January 8, 2004. Immediately following the stockholders' meeting, MacAndrews & Forbes invested $1,840,595 in exchange for 1,278,191 shares of common stock at a price of $1.44 per share, and warrants to purchase up to an additional 639,095 shares of common stock at an exercise price of $2.00 per share; and TransTech Pharma invested $5,000,000 in exchange for 3,472,222 shares of common stock and warrants to purchase up to an additional 1,736,111 shares of common stock on the same terms. In addition, as part of the investment, MacAndrews & Forbes and TransTech Pharma each were given the right to appoint one board member to the Board of Directors, subject to certain terms and conditions. On January 8, 2004, in accordance with the terms of the investment, the respective designees of MacAndrews & Forbes and TransTech Pharma were appointed to serve on SIGA's board of directors. 2002 Placements In December 2002, the Company raised gross proceeds of $1.865 million in a private offering of common stock and warrants to purchase the Company's common stock. The Company sold 1,700,000 shares of common stock. In connection with the offering the Company issued 171,216 warrants to purchase shares of the Company's common stock to placement agents. The warrants are exercisable at a price of $1.65 and have a term of five years. The Company received net proceeds of $891,000 prior to December 31, 2002 and net proceeds of $791,940 after December 31, 2002. As such, as of December 31, 2002, the Company had recorded a subscription receivable of $791,940. In October 2002, the Company raised gross proceeds of $1.04 million in a private offering of common stock and warrants to purchase the Company's common stock. The Company sold 1,037,500 shares of common stock and 518,750 warrants. The warrants are exercisable at $2.25 and have a term of five years. In connection with the offering the Company issued 103,750 warrants to purchase shares of the Company's common stock to placement agents. The warrants are exercisable at a price of $1.50 and have a term of five years. The fair value of the warrants attributable to consultants on the date of grant was approximately $64,670. F-13

Preferred Stock Holders of the Series A Convertible Preferred Stock are entitled to (i) cumulative dividends at an annual rate of 6% payable when and if declared by the Company's board of directors; (ii) in the event of liquidation of the Company, each holder is entitled to receive $1.4375 per share (subject to certain adjustment) plus all accrued but unpaid dividends; (iii) convert each share of Series A to a number of fully paid and non-assessable shares of common stock as calculated by dividing $1.4375 by the Series A Conversion Price (shall initially be $1.4375); and (iv) vote with the holders of other classes of shares on an as-converted basis. During the year ended December 31, 2003, certain preferred stockholders converted 353,185 Series A convertible preferred stock into 353,185 shares of common stock. 5. Stock option plan and warrants Amended and Restated 1996 Incentive and Non-Qualified Stock Option Plan In January 1996, the Company implemented its 1996 Incentive and Non-Qualified Stock Option Plan (the "Plan"). The Plan as amended provides for the granting of up to 7,500,000 shares of the Company's common stock to employees, consultants and outside directors of the Company. The exercise period for options granted under the Plan, except those granted to outside directors, is determined by a committee of the Board of Directors. Stock options granted to outside directors pursuant to the Plan must have an exercise price equal to or in excess of the fair market value of the Company's common stock at the date of grant and become exercisable over a period of three years with a third of the grant being exercisable at the completion of each year of service subsequent to the grant. In November 2003, the Board of Directors approved an amendment to the Plan to increase the maximum number of shares of common stock available for issuance thereunder from 7,500,000 shares to 10,000,000 shares. Such amendment became effective upon approval by the Company's stockholders in January 2004. Stock option activity of the Company is summarized as follows: Weighted Average Number of Exercise Shares Price ----------- -------- Outstanding at January 1, 2002 5,139,811 $2.50 Granted 777,750 2.66 Forfeited (85,000) 3.80 Exercised (25,000) 1.13 ----------- ----- Outstanding at December 31, 2002 5,807,561 $2.52 Granted 813,250 1.79 Forfeited (160,000) 4.81 Exercised -- -- ----------- ----- Outstanding at December 31, 2003 6,460,811 $2.33 =========== ===== Options available for future grant at December 31, 2003 827,064 Weighted average fair value of options granted during 2003 $ 1.14 Weighted average fair value of options granted during 2002 $ 0.71 F-14

The following table summarizes information about options outstanding at December 31, 2003: Weighted Number Number Average Weighted Exercisable Weighted Outstanding Remaining Average at Average December 31, Contractual Exercise December 31, Exercise Exercise Price 2003 Life (Years) Price 2003 Price - ------------------ ------------ ----------- -------- ------------ -------- 1.00 ............. 20,000 5.86 1.00 20,000 1.00 1.13 ............. 300,000 5.81 1.13 300,000 1.13 1.50 - 1.85 ...... 964,084 9.16 1.75 594,234 1.75 2.00 - 2.75 ...... 4,838,500 7.12 2.38 4,687,250 2.38 3.94 - 5.50 ...... 338,227 4.99 4.36 292,977 4.42 --------- --------- 6,460,811 5,894,461 ========= ========= At December 31, 2003, options held outside of the plan included 125,000 options granted to an employee and 125,000 options granted to consultants and have not been included in the above tables. The following tables summarize information about warrants outstanding at December 31, 2003: Number of Weighted Average Expiration Warrants Exercise Price Dates --------- ---------------- ---------- Outstanding at January 1, 2002 ...... 4,231,428 $3.61 Granted ........................ 793,716 2.03 09/30/2007 - 12/31/2007 Canceled / Expired ............. (350,000) 7.32 --------- ----- Outstanding at December 31, 2002 .... 4,675,144 $3.06 Granted ........................ 2,117,966 1.97 12/31/2007 - 03/01/2012 Exercised ...................... (40,562) 1.19 Canceled / Expired ............. (466,216) 5.83 --------- ----- Outstanding at December 31, 2003 .... 6,286,332 $2.50 --------- ----- Number of Warrants Exercise Outstanding Price ----------- ----------- 75,000 1.00 860,354 1.45 - 1.75 2,799,766 2.00 - 2.25 2,551,212 2.94 - 3.63 --------- 6,286,332 ========= In February 2003, the Company entered into a 12-month consulting agreement with an outside consultant in the amount of $249,420 to provide marketing research support. Upon being awarded research contracts in excess of $2.0 million from such support, the Company is obligated to issue 400,000 fully vested warrants at an exercise price of $1.32 with an expiration of 3 years. As of December 31, 2003, the Company had not yet been awarded contracts in excess of $2.0 million. Upon renewal of the agreement, the Company is required to issue an additional 100,000 warrants with an exercise price set at the date of the renewal with an expiration of 3 years. In March 2004, the Company renewed the consulting agreement in the amount of $320,000 for an additional eight months from March 1, 2004. The Company issued 100,000 warrants at an exercise price of $2.05 per share with an expiration date of March 2007. During 2003, the Company extended 3,225,000 options held by the Board of Directors for an additional 5 years. The Company accounted for such extension in accordance with Financial Accounting Standard Board Interpretation Number 44, "Accounting for Certain Transactions Involving Stock Compensation - An Interpretation of APB Opinion Number 25". No compensation cost was incurred with the extension as the exercise prices of the options were higher than the fair value of the common stock at the date of modification. F-15

2002 Grants In September 2002, the Company entered into a four-month consulting agreement under which a consultant assists the Company with public relations efforts in the United States and Europe in exchange for a monthly retainer of $3,500 for the four-month term and 50,000 fully vested options to purchase shares of the Company's common stock. Of the amount of fully vested options, 25,000 shares have an exercise price of $1.50 per share and 25,000 shares have an exercise price of $1.75. Upon grant, the Company recorded a $31,618 stock compensation charge to operations based upon the fair value of the options. In April 2002, in connection with an existing consulting agreement, the Company granted a consultant an option to purchase 15,000 shares of the Company's common stock under the Plan. Upon grant, the Company recorded a $10,269 stock compensation charge to operations based upon the fair value of the option. In connection with the development of its licensed technologies the Company entered into a consulting agreement with a scientist who developed such technologies, under which the consultant serves as the Company's Chief Scientific Advisor. In June 2001, the Company entered into an amended consulting agreement with the scientist under which the scientist was to provide services to the Company for a three-year period commencing on September 10, 2001. In consideration for the consulting services the scientist was to be paid an annual fee of $50,000 payable quarterly. In addition, the Company granted the scientist options to purchase 225,000 shares of common stock at $3.94 per share. On September 10, 2001, ten percent of the options vested and the remaining options were to vest in 36 monthly installments beginning on October 10, 2001. In September 2002, the Company and the consultant terminated their arrangement and all unvested options were forfeited. For the year ended December 31, 2002, the Company recorded a stock compensation charge of $58,904. 6. Related Parties Directors The Company's Chairman of the Board of Directors is Vice Chairman and a director of MacAndrews & Forbes. During 2003 and January 2004, MacAndrews & Forbes, along with TransTech Pharma, invested $10.0 million in SIGA. Furthermore, two directors of the Company are also directors of TransTech Pharma. Additionally, a director of the Company, is a member of the Company's outside counsel (See Note 4). Collaborative Research Agreements In October 2002, the Company entered into a collaborative research agreement with TransTech Pharma, a related party, for the discovery and treatment of human diseases. Under the terms of the agreement, TransTech Pharma and the Company have agreed to contribute each of their respective services and share equally in costs of specified research projects. In consideration of the services performed by TransTech Pharma and use of its proprietary technology, SIGA granted an exclusive, fully-paid, nontransferable, nonsublicenseable, limited license to use existing rights to patents and technologies. Both parties will share equally in the ownership of compounds and related intellectual property derived from such research efforts. In January 2004, TransTech Pharma invested $5.0 million in SIGA (See Note 4). 7. Equipment Equipment consisted of the following at December 31, 2003 and 2002: Laboratory equipment $ 1,134,110 $ 896,862 Leasehold improvements 690,138 627,849 Computer equipment 199,209 155,204 Furniture and fixtures 292,817 291,637 ----------- ----------- 2,316,274 1,971,552 Less - Accumulated depreciation (1,937,228) (1,539,110) ----------- ----------- Equipment, net $ 379,046 $ 432,442 =========== =========== F-16

8. Income Taxes The Company has incurred losses since inception, which have generated net operating loss carryforwards of approximately $24,990,000 at December 31, 2003 for federal and state income tax purposes. These carryforwards are available to offset future taxable income and begin expiring in 2010 for federal income tax purposes. As a result of a previous change in stock ownership, the annual utilization of the net operating loss carryforwards is subject to limitation. The net operating loss carryforwards and temporary differences, arising primarily from deferred research and development expenses result in a noncurrent deferred tax asset at December 31, 2003 and 2002 of approximately $13,030,000 and $11,144,000, respectively. In consideration of the Company's accumulated losses and the uncertainty of its ability to utilize this deferred tax asset in the future, the Company has recorded a valuation allowance of an equal amount on such date to fully offset the deferred tax asset. For the years ended December 31, 2003 and 2002, the Company's effective tax rate differs from the federal statutory rate principally due to net operating losses and other temporary differences for which no benefit was recorded, state taxes and other permanent differences. 9. License and Research Agreements In December 2002, the Company was awarded an initial U.S. Government contract with the U.S. Army to develop an effective Smallpox antiviral drug. The total estimated revenue under the contract is $1.6 million for the periods January 1, 2003 to May 31, 2007. For the year ended December 31, 2003, the Company recognized revenue of approximately $290,000 from this contract. In May 2002, the Company announced that it was awarded a Phase II research grant for a total of $865,000. The grant will support the Company's antibiotic development program. The grant was awarded by the Small Business Innovation Research Program of the National Institutes of Health. For the years ended December 31, 2003 and 2002, the Company recognized revenue of approximately $388,000 and $270,000, respectively, from this grant. 10. Other Agreements In March 2002, the Company entered into a non-binding Letter of Intent (the "Letter") to acquire all of the outstanding shares of Allergy Therapeutics Holdings Ltd. ("Allergy"). Under the terms of the Letter, SIGA was to issue shares to the Allergy stockholders that would result in 47.5% ownership to each of the former shareholders of SIGA and former shareholders of Allergy of the outstanding common stock, on a fully diluted basis. As part of the transaction, Elan Pharma International Limited ("Elan") was to enter into an exclusive license for certain technology with SIGA in exchange for 5% of the Company's common stock on a fully diluted basis. In July 2002, the Company announced the termination of the Letter to acquire all the shares of Allergy due to unfavorable market conditions that existed at the time of the termination. The Company incurred approximately $600,000 of selling, general and administrative expenses in connection with this contemplated transaction, of which approximately $127,000 were still outstanding as of December 31, 2003. 11. Commitments and Contingencies Employment agreements In January 2002, the Company and its Chief Financial Officer ("CFO") entered into an amendment to the CFO's existing employment agreement, extending his employment until December 31, 2002. In November 2002, the employment agreement was amended and extended until September 30, 2004. Under the amended agreement, compensation is set at an annual minimum base salary of $210,000 and options of 150,000 were granted under the Plan at an exercise price of $2.50 per share. Of such grant, 75,000 shares vested immediately and 75,000 shares vested on September 1, 2003. In October 2002, the Company and its Chief Scientific Officer ("CSO") entered into an amendment to the CSO's existing employment agreement, extending his employment until December 31, 2005. Under the amended agreement, compensation is set at an annual minimum base salary of $210,000 and options of 300,000 shares were F-17

granted at an exercise price of $2.50. Upon such grant, the CSO was required to surrender 50,000 shares granted under a previous grant with an exercise price of $3.94. Under the new grant, 75,000 shares vested immediately and 75,000 shares will vest on September 1, 2003, 2004 and 2005, respectively, pursuant to the Plan. As such, 50,000 options are considered variable options under APB 25 as replacement awards for the options surrendered. For the years ended December 31, 2003 and 2002, there was no stock compensation charge as the fair value of the underlying common stock was below the exercise price of the option. In May 2003, the President and CEO of Plexus Vaccine was appointed President of SIGA. The President and the Company entered into an employment agreement for the period of May 23, 2003 until December 31, 2005. Under the agreement, compensation is set at an annual minimum base salary of $216,000 with certain benefits, as defined. Additionally, 300,000 options were granted under the Plan at an exercise price of $1.81 per share. Of such grant, 100,000 options vested immediately, 100,000 options will vest in May 2004 and the remaining 100,000 options will vest in May 2005. Operating lease commitments The Company leases certain facilities and office space under operating leases. Rent expenses for the years ended December 31, 2003 and 2002 was approximately $235,000 and $213,000, respectively. Minimum future rental commitments under operating leases having noncancelable lease terms in excess of one year are as follows: Year ended December 31, 2004 $ 193,237 2005 86,398 2006 87,737 2007 94,921 2008 19,416 Thereafter -- --------- Total $ 481,709 ========= F-18

                                                                      EXHIBIT 14

                             SIGA TECHNOLOGIES, INC.
                       Code of Ethics and Business Conduct

                                  Introduction

      All of us at SIGA have important roles to play in upholding our Company's
commitment to conduct our business-related activities in a legal and ethical
manner. Maintaining high levels of legal and ethical compliance is simply the
right thing to do and will also maximize the long-term success of our Company.
The purpose of this Code of Ethics and Business Conduct is to promote a culture
of honesty, integrity and respect for law and the people with whom we work. It
applies to SIGA Technologies, Inc. and its subsidiaries (which this Code
collectively calls the "Company").

      We expect each employee to use sound judgment to help us maintain
appropriate compliance procedures and to carry out our business legally and
ethically. No Code can address all of the issues that its personnel may face, so
please apply this Code with common sense. If you are not sure what to do, ask
your supervisor or Thomas N. Konatich, who serves as our Company's Compliance
Officer. Each employee of our Company must read this Code and demonstrate a
personal commitment to its standards. (References in this Code to "employees"
also include non-employee officers and members of the Board of Directors.)

      Our officers and other supervising employees must be leaders in
demonstrating this personal commitment to the standards outlined in this Code.
They must also insure that the employees they supervise adhere to its standards.

      An employee who does not comply with this Code may be subject to
discipline, including termination of employment where appropriate.

      The Code of Ethics and Business Conduct is not a contract. It is not
intended to and does not create an employment contract, does not create any
contractual right between our Company and its employees, does not alter or amend
any existing or future contractual relationship between our Company and any
employee and does not create any express or implied promise for specific
treatment in any specific situation. Further, is not intended as a detailed
guide for all situations you may face or to detract from the importance of
applicable laws and regulations not detailed herein.

The Rules That Guide Our Business Our Commitment to Our Stockholders We expect you to share a commitment to protect our assets and manage our business in the best interests of our stockholders. > Accuracy of our records and reporting: All employees must accurately record financial and other business information pertaining to our Company, all financial records and transactions must adhere to our system of internal controls and accounting requirements, and no one shall enter any false or artificial information in our records or reporting systems. These requirements apply to all Company information, including personnel, workplace and safety records and information we release to the public or file with governmental agencies. > Disclosure Controls and Procedures. The U.S. Securities and Exchange Commission (the "SEC") requires that we maintain effective "disclosure controls and procedures" so that financial and non-financial information we report in our SEC filings is timely and accurate. All employees must, within the scope of their employment duties, support the effectiveness of our disclosure controls and procedures and comply with disclosure requirements in accordance with applicable laws. > Stock Trading and Confidential Information Policy. Our Company's Insider Trading Policy prohibits any employee from buying or selling stock or other securities of our Company, its affiliates or third parties with whom we do business using "material" non-public information concerning our Company or concerning those third parties (until after the material information has been fully disclosed to the public). As the Policy explains in more detail, "material" information is any information that a shareholder would consider important when deciding whether to buy, sell or hold our stock. Employees must also not disclose or "tip" any of this material non-public information to family, friends or others outside the Company. These practices are sometimes called "insider trading." The insider trading rules can be quite complex, so, if you need more information, please refer to our Company's Insider Trading Policy or contact the Compliance Officer. * No Selective Disclosure. In addition, applicable securities rules also prohibit selective disclosure of material non-public information to those outside the Company in most circumstances. Therefore, all employees must assist the Company in keeping all material non-public information about our Company strictly confidential unless and until our Company makes an authorized press release or other authorized public communication or filing. * Information to the Public. Our policy is to provide public dissemination of material information about our business only through our employees authorized for this purpose. You may not under any circumstance discuss our Company's financial, business or other information with the press (except if the Company has expressly authorized you to do so for this purpose) or on any Internet or other "discussion board," "chat room," or similar forum. If you receive a request from the media, an analyst or a stockholder about our Company, you must forward it to our Chief Executive Officer, Chief Financial Officer or the Compliance Officer. > Protection of Company Assets. You are personally responsible to use our Company's assets only for lawful, corporate purposes approved by management. All employees should help our Company protect its assets from misuse, theft, damage or other loss. You may not make improper or unauthorized personal use of Company assets. > Intellectual Property. Our Company considers its "intellectual property" - including its inventions, processes, patents, trademarks, licenses, customer lists and trade secrets - to be valuable assets. Employees must maintain the value of our Company's intellectual property by using care to keep our trade secrets and other non-public information confidential, and limiting access to non-public information to those authorized to use it in their duties in connection with our Company's business. If customers or suppliers

provide non-public information to us in their dealings with us, we must protect that information in the same manner as our Company's property. > Communications. You must use appropriate judgment and discretion in your email, memos, notes and other formal and informal communications relating to our business. Communications relating to our business must avoid inappropriate or derogatory comments about other individuals or companies, unprofessional language and unauthorized financial, legal or business statements. > Retention of Records. You must preserve Company records for which you are responsible in a manner consistent with the business needs of the Company and all legal requirements. You must familiarize yourself with special retention rules applicable to specific categories of documents (e.g., personnel files, tax records) for which you are responsible. It is our Company's policy not to destroy or alter our records or documents (whether in paper form, emails or otherwise) in response to or in anticipation of any legal proceeding or governmental inquiry or investigation. You may also subject yourself to criminal liability if you: * corruptly alter, destroy, mutilate or conceal a record, document or other object, or attempt to do so, with the intent to impair its availability for use in an official proceeding, or * knowingly alter, cover up, falsify or make a false entry in any record, document or tangible object with the intent to impede or obstruct the investigation or administration of any matter by a governmental agency or bankruptcy court. Our Commitment to Customers and Business Partners We are committed to excellence in service and performance for our customers, and building mutually advantageous alliances with our business partners. > Customer Relationships. Our policy is to build lasting relationships with our customers through superior delivery and execution, and honest sales and marketing. We will comply with applicable advertising laws and standards. Our policy also prohibits making false or deceptive statements about our competitors, and giving or accepting kickbacks, bribes, inappropriate gifts and other matters prohibited under the conflict of interest topic in this Code. > Protecting Information about Others. We are committed to treating confidential information of our customers and business partners with at least the care we use to protect our own proprietary or confidential information. All employees are expected to use sound judgment in limiting access to confidential information about our customers and business partners to those individuals in our Company who need to know this information to carry out their jobs. > Commitment to Quality. Our long-term reputation and business success depend upon our continued maintenance of high quality in the products and services we provide. We are committed to deliver our products and services only in accordance with the documentation, safety, quality control and other procedures we maintain from time to time. > Special Concerns with Governmental Customers. Special legal and contracting rules may apply to our dealings with domestic and foreign governmental agencies. Many national, state or other local governmental agencies impose bidding or procurement requirements, special billing and accounting rules and restrictions on the subcontractors or agents we may engage. Domestic or foreign laws or regulations may also impose strict limits on any kind of benefit or gift offered to officials, including limitations on hiring former government officials or their family members. If you deal with domestic or foreign governmental agencies, you must be familiar with the laws applicable to these business activities and use sound judgment to avoid any violation of the letter or spirit of the laws prohibiting corrupt practices in connection with governmental contracting.

> Suppliers. We must base our contracts with suppliers of products and services exclusively on the best interests of our Company and its business. These contracts must reflect a fair price for the deliverables provided to us and be recorded in accordance with appropriate approval, contracting and internal control procedures. > Business with Third Parties. We expect our consultants, agents, resellers, distributors, subcontractors and other business partners to adhere to lawful and ethical business practices. It is important to our Company's reputation that we avoid doing business with companies that violate applicable laws or have reputations that could harm our business. Our policy prohibits engaging agents or other third parties to do indirectly what we as a Company should not do under our own policies. Our Commitment to Each Other Each employee must do his or her part to promote a positive working environment for all. > Respect for Our Employees. Our Company's employment decisions will be based on reasons related to our business, such as job performance, individual skills and talents, and other business-related factors. Our Company policy requires adherence to all national, state and local employment laws. Our Company policy prohibits discrimination in any aspect of employment based on race, color, religion, sex, sexual preference, marital status, national origin, disability or age, within the meaning of applicable laws. > Abusive or Harassing Conduct Prohibited. Our Company policy prohibits abusive or harassing conduct by our employees toward others, such as unwelcome sexual advances, comments based on ethnic, religious or racial aspects, or other non-business, personal comment or conduct that makes others uncomfortable in their employment with us. Our Company's policy is to provide to its employees a protective and pleasant work environment free from harassment, sexual or otherwise, and to prevent harmful exploitation of authority and to promote gender equality at work. We encourage employees to report harassment or other inappropriate conduct as soon as it occurs. We are committed to taking prompt and appropriate action as soon as we are aware of or receive any report of harassment or inappropriate conduct of any kind, and we will neither take nor permit retaliatory action against any employee who reports alleged harassment. Sexual harassment impinges upon a person's dignity, privacy and sense of equality between the sexes, makes the work relationship more difficult and contradicts our Company's policy. In addition to harm caused to the work environment, sexual harassment can be a criminal offense. Employees must adhere to our Company's policy in this matter and the prevailing laws and regulations. > Health and Safety. All employees must help us to maintain a healthy, hygienic and safe working environment and to report promptly any unsafe or hazardous condition or material, injury or accident connected with our business. Our Company is committed to adhering to safety laws and regulations, including fire protection and other building regulations, and laws and regulations that promote cleanliness and hygiene in the workplace. You may not work under the influence of any substance that would impair the safety of others. All threats or acts of physical violence or intimidation are prohibited. Competition We are committed to competing effectively, but lawfully, in our business markets. > Compliance with Antitrust Laws. Our Company and its employees must comply with the antitrust and unfair competition laws of the countries in which our Company engages in business. These laws vary by country and can be complex. If you have a role that may implicate the antitrust laws - such as a sales and marketing executive position - you are responsible for knowing the laws that apply to these business activities, and should speak to our Compliance Officer if any question arises. Generally, these laws prohibit or regulate mergers and acquisitions, attempts to monopolize or otherwise restrain trade, selling products below cost, price discrimination, price fixing or other agreements with competitors that would divide or allocate customers or otherwise harm customers, certain kinds of "tying" arrangements that require a customer who wishes to buy a given product to buy other products or services, artificially

maintaining prices, and certain other restrictive agreements or arrangements. Our employees may not exchange non-public sales information with competitors for the purpose of affecting sales prices or levels. > Fair Methods of Competition. Our Company is committed to competition on a lawful and ethical basis. You may not use improper or illegal means of gaining competitive information that is confidential or proprietary information owned by others. You may not use or disclose confidential or proprietary information that you may have from past employment with other employers. Conflicts of Interest We expect all of our employees to avoid allowing their private interests to interfere, or appear to interfere, with the interests of our Company as a whole. > Generally. You must make or participate in business decisions and actions in the course of your employment with us based on the best interests of our Company as a whole, and not based on personal relationships or benefits. Although this Code contains some general guidelines, you must apply sound judgment to avoid conflicts of interest that could negatively affect our Company or its business, whether or not we have specific rules for that particular situation. You must disclose to us any situation that may involve inappropriate or improper conflicts of interest affecting you personally or affecting other employees or those with whom we do business, as described under "How to Report Your Concerns." > Business Referrals. You may not personally attempt to give or steer our Company's business transactions to companies in which a family relative or personal friend has a financial or other interest unless you first fully inform the Compliance Officer about such transaction and relationship and have received the appropriate approvals from unconflicted and sufficiently senior personnel. > Personal Investments. Generally, you must avoid investments in other companies with which our Company does business if these investments could create the fact or appearance of a conflict of interest, unless such investments received the appropriate Company approvals after full disclosure of the relevant circumstances. Investing in relatively small positions in publicly traded securities of other companies is generally not prohibited so long as there is no violation of our Company policy relating to trading while in possession of material non-public information about other companies. You must notify the Compliance Officer in advance of any proposed personal investment you wish to make in other companies with which our Company does business. The Compliance Officer shall advise on the appropriate approvals, if any, required in such circumstances. > Corporate Opportunities. You must also refrain from purchasing property or otherwise taking for yourself personally a business opportunity that you learn about through your employment with us. You may not use our Company's information for personal gain. > Prohibited Competition. You may not compete with us during the term of your employment and may not initiate any step to compete with us while still in our employ. > Outside Compensation and Activities. While employed by us, you may not work for or seek or accept personal payments from any customer, supplier, competitor, distributor, reseller or other business partner of our Company, except as approved in writing by an authorized officer or manager of our Company. You may not use trade secrets or other non-public know-how or information learned at our Company in activities outside our Company or in other ways that could harm our business. > Outside Board Service. You must obtain prior written authorization from the Compliance Officer for service as a director, general partner, manager, officer or similar position with any privately held or public business entity or as an appointee to any kind of governmental or quasi-governmental agency or body. Service solely as a director or trustee of nonprofit corporations engaged in charitable activities does not require approval unless that activity could involve improper conflicts of interest.

> Gifts and Gratuities. You may not seek or accept gifts or gratuities in the form of services or other items of value from our customers, other business partners or other parties with whom our Company contracts. You may not offer or give anything of value that could be or appear to be a bribe or otherwise illegal payment. These prohibitions do not apply to items of truly nominal value such as generally free promotional items, assuming these items are not otherwise prohibited by applicable law or custom. Employees should never accept anything that would appear to create a conflict of interest. In the unusual situation where refusal to accept a true gift might hurt our business, be sure to consult the appropriate officer or manager of our Company concerning the proper means of resolving the situation. > Business Entertainment. You must adhere to our Company's policies as in effect from time to time with respect to costs of entertainment. Extending or accepting invitations to reasonable meals, public events and similar business activities incurred for bona fide business purposes is generally acceptable, assuming the costs are not disproportionate to the business purpose and otherwise do not create the fact or appearance of a conflict of interest. You should not attend entertainment events that may appear contrary to professional standards of conduct. > Travel. You must comply with Company travel policies in effect from time to time. All travel-related expenses must actually be incurred, accurately reported and recorded in compliance with these policies. > Other Corporate Policies. In addition to the above, employees must comply with all other Company policies in effect from time to time. Legal Compliance Generally We expect our employees to be committed to pro-active compliance with all applicable laws and regulations affecting our Company and its business. In addition to the laws discussed elsewhere in this code: > General Standard of Compliance. You must comply with all applicable laws and regulations and national and local governmental authority rules and procedures in every location in which we conduct our business. Competitive factors, personal goals, and pressure from supervisors, customers or others shall never be an acceptable excuse for violating the law. > Prohibited Corrupt Practices. Our Company must comply with anti-corruption laws, including the Foreign Corrupt Practices Act ("FCPA"), that apply in the places where we do business. Our employees and agents must not directly or indirectly offer or make a corrupt payment to any domestic or foreign governmental official, any foreign political party, candidate or official, or employees of enterprises owned or controlled by a governmental agency. You may not engage in any form of fraud, including, but not limited to, bribery, embezzlement, theft, hiding or misuse of Company assets or falsification of records. > Prohibited Political Contributions. Political activity represents another area where the rules on permissible activities are complex and you could inadvertently run afoul of such rules. As a result, you may not contribute in our Company's name or on our Company's behalf any cash, services or property of any kind for or in support of any political candidate, committee, initiative or activity without the prior express approval of the Compliance Officer or appropriate legal counsel. No lobbying effort or contract shall be undertaken in our Company's name or on our Company's behalf without the prior approval of our Board of Directors. > Prohibited Loans to Executive Officers and Directors. It is unlawful for our Company, directly or indirectly, to extend or maintain credit, to arrange for the extension of credit, or to renew an extension of credit, in the form of a personal loan to or for any director or executive officer of our Company. However, we may continue in effect an extension of credit in existence on July 30, 2002, provided that there is no material modification, or any renewal, of the extension of credit after that date. > Import and Export Restrictions. Our Company and its employees must comply with applicable restrictions under domestic and foreign laws relating to importing or exporting technology, products, services or

regulated information. Employees who conduct Company business involving foreign countries must be familiar with and abide by applicable import/export and similar restrictions. > Environmental Laws. Our Company is committed to protecting the environment. We respect the policies and requirements of domestic and foreign laws aimed at protecting the environment. We expect a commitment from our employees to report appropriately any violation of environmental laws and any exposure to hazardous materials or substances that are not being handled or disposed of properly. Our Communities We respect our employees' involvement in the community, charitable and political activities and causes they may choose, so long as these activities do not interfere with job responsibilities to us. You may not represent that your views or activities speak for our Company. You may not engage in any unwanted solicitation or pressure toward other employees relating to charitable, religious or political causes. How to Report Your Concerns > Where to Direct Questions. If you have questions about this Code or concerns about any of the matters listed here, please first consider speaking with your immediate manager or supervisor if that person was not involved in the matter giving rise to your questions. If you do not wish to communicate with that person on the matter, please feel free to contact Thomas N. Konatich, who serves as our Compliance Officer, or any other member of our management. If you wish to communicate any matter anonymously, you are free to do so (although we encourage you to identify yourself in case we need to follow up on any aspect of your report with you), and we will maintain the confidentiality of your communication to the extent reasonably possible under the circumstances. You may send communications intended to be confidential to the Company's address, Attention: Chairman of the Audit Committee. > Good Faith Concerns Are Protected. We encourage each of our employees to report any concern regarding possible illegal or unethical conduct relating to our business. We do not discriminate, retaliate or permit discrimination or retaliation against any employee who reports in good faith a concern to us. In addition, Company policy prohibits the discharge of, other adverse employment action in any manner against, or threat to or harassment of an employee for any lawful, good faith act by the employee to provide information or assist in an investigation by us or any governmental authority or agency, of violations of applicable laws. > False Claims Are Prohibited. It is a violation of our standards for any employee to communicate a report claiming illegal or unethical conduct that the employee knows or reasonably believes to be false. > Audit Committee Available to Hear About Accounting Matters. In addition to the above, if you have concerns about accounting, internal accounting controls or auditing matters relating to our Company, you are also free to contact the audit committee of our board of directors directly. Inquiries or communications intended to be anonymous should be mailed in writing without indicating your name or address to the Audit Committee as noted in the first paragraph of this section. > Procedures for Investigating and Resolving Concerns. The individual or Committee that receives a report under this Code may, in his, her or its discretion, assume responsibility for evaluating any possible violation and directing or conducting any investigation or may delegate any portion of such responsibility to the Compliance Officer, our Board of Directors, another committee of the Board whose charge includes the matter at issue or another person or entity, either inside or outside the Company. If the Audit Committee chooses to assume responsibility for evaluating any possible violation or directing or conducting any investigation where the investigation concerns a possible violation by a member of the Board, the Audit Committee, not including that member, shall assume such responsibility. If the Audit Committee is conducting the investigation, it shall have the authority to engage independent counsel and other advisers, as it deems necessary, to assist in its investigation and decision process. After conducting the investigation, the results will be evaluated and the Company shall authorize such prompt response,

follow-up and preventive actions, if any, as are deemed necessary and appropriate to address the substance of the reported possible violation. The Company reserves the right to take whatever action it believes appropriate, up to and including discharge, if appropriate and permissible under law and this Code, of any employee determined to have engaged in improper conduct. Waivers Requested by Our Officers and Directors As noted at the outset, this Code applies to our officers and directors as well as to our employees generally. Any waiver of a specific provision of this Code for any individual officer or director of our Company must be approved, if at all, in advance by a majority of the independent directors serving on our board of directors. Any such waiver that may be granted and is required to be disclosed by applicable law will be publicly disclosed by appropriate means.

                                                                    EXHIBIT 23.1

                       CONSENT OF INDEPENDENT ACCOUNTANTS

We hereby consent to the incorporation by reference in the Registration
Statement on Forms S-3 (Nos. 333-36682, 333-43750, 333-64414, 333-72553,
333-74390, 333-103231 and 333-112356) and Forms S-8 (Nos. 333-35992, 333-56216
and 333-112935) of SIGA Technologies, Inc. of our report dated February 17, 2004
relating to the financial statements, which appears in this Form 10-KSB.


/s/ PRICEWATERHOUSECOOPERS LLP

New York, New York
March 29, 2004

                                                                    EXHIBIT 31.1

                            CERTIFICATION PURSUANT TO
                  SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Thomas N. Konatich, certify that:

      1.    I have reviewed this annual report on Form 10-KSB of SIGA
            Technologies, Inc.;

      2.    Based on my knowledge, this annual report does not contain any
            untrue statement of a material fact or omit to state a material fact
            necessary to make the statements made, in light of the circumstances
            under which such statements were made, not misleading with respect
            to the period covered by this annual report;

      3.    Based on my knowledge, the financial statements, and other financial
            information included in this annual report, fairly present in all
            material respects the financial condition, results of operations and
            cash flows of the registrant as of, and for, the periods presented
            in this annual report;

      4.    I am responsible for establishing and maintaining disclosure
            controls and procedures (as defined in Exchange Act Rules 13a-15(e)
            and 15d-15(e)) (as defined in Exchange Act Rules 13a-15(f) and
            15d-15(f)) for the registrant and have:

            (a)   Designed such disclosure controls and procedures, or caused
                  such disclosure controls and procedures to be designed under
                  our supervision, to ensure that material information relating
                  to the registrant, including its consolidated subsidiaries, is
                  made known to me by others within those entities, particularly
                  during the period in which this annual report is being
                  prepared;

            (b)   Evaluated the effectiveness of the registrant's disclosure
                  controls and procedures and presented in this annual report
                  our conclusions about the effectiveness of the disclosure
                  controls and procedures, as of the end of the period covered
                  by this report based on such evaluation; and

            (c)   Disclosed in this report any change in the registrant's
                  internal control over financial reporting that occurred during
                  the registrant's fourth fiscal quarter that has materially
                  affected, or is reasonably likely to materially affect, the
                  registrant's internal control over financial reporting; and

      5.    I have disclosed, based on my most recent evaluation of internal
            control over financial reporting, to the registrant's auditors and
            the audit committee of registrant's board of directors (or persons
            performing the equivalent functions);

            (a)   All significant deficiencies and material weaknesses in the
                  design or operation of internal control over financial
                  reporting which are reasonably likely to adversely affect the
                  registrant's ability to record, process, summarize and report
                  financial information; and

(b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting. Date: March 30, 2004 By: /s/ Thomas N. Konatich --------------------------------- Thomas N. Konatich Acting Chief Executive Officer and Chief Financial Officer

                                                                    EXHIBIT 32.1

                            CERTIFICATION PURSUANT TO
                  SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

      In connection with the annual report of SIGA Technologies, Inc. (the
"Company") on Form 10-KSB, for the year ended December 31, 2003 as filed with
the Securities and Exchange Commission on the date hereof (the "Report"), I,
Thomas N. Konatich, Acting Chief Executive Officer and Financial Officer of the
Company, certify, pursuant to 18 U.S.C. ss.1350, as adopted pursuant to ss.906
of the Sarbanes-Oxley Act of 2002, that:

      (1)   The Report fully complies with the requirements of section 13(a) or
            15(d) of the Securities Exchange Act of 1934; and

      (2)   The information contained in the Report fairly presents, in all
            material respects, the financial condition and results of operations
            of the Company.


                                        /s/ Thomas N. Konatich
                                        ---------------------------------
                                        Thomas N. Konatich
                                        Acting Chief Executive Officer
                                        and Chief Financial Officer

Dated: March 30, 2004


                                                                    Exhibit 99.1

                             SIGA TECHNOLOGIES, INC.
                  AMENDED AND RESTATED AUDIT COMMITTEE CHARTER

I.    Purpose

      The purpose of the Audit Committee (the "Committee") of the Board of
Directors (the "Board") of SIGA Technologies, Inc. (the "Company") is to
represent and assist the Board in monitoring (i) the Company's accounting,
auditing, and financial reporting processes; (ii) the integrity of the Company's
financial statements; (iii) the Company's internal controls and procedures
designed to promote compliance with accounting standards and applicable laws and
regulations; and (iv) the appointment of and evaluating the qualifications and
independence of the Company's independent auditors.

II.   Membership

      The Committee shall be comprised of three or more directors, each of whom
shall be free from any relationship that, in the opinion of the Board, would
interfere with his or her exercise of independent judgment and must be found by
the board to (i) qualify as an "independent director" under the Nasdaq
Marketplace Rules (the "Marketplace Rules"), unless the Board determines that an
exemption to such qualification is available under the Marketplace Rules, (ii)
meet the "independence" requirements under Section 10A of the Securities
Exchange Act of 1934 (the "Exchange Act") and (iii) satisfy the other
requirements of the Nasdaq Marketplace Rules. In addition, all members of the
Committee shall be able to read and understand fundamental financial statements,
including the balance sheet, income statement and cash flow statement. At least
one member of the Committee should in the judgment of the Board be an audit
committee financial expert in accordance with the rules and regulations of the
Securities and Exchange Commission (the "SEC") and shall have past employment
experience in finance or accounting, requisite professional certification in
accounting, or other comparable experience or background, which results in such
member's financial sophistication, including a current or past position as a
chief executive or financial officer or other senior officer with financial
oversight responsibilities.

      Members of the Committee shall serve at the pleasure of the Board and may
be removed at the Board's sole and absolute discretion. Members shall serve
until their successors shall be duly elected and qualified. The Committee's
chairperson shall be designated by the full Board or, if the Board does not do
so, the Committee members shall elect a chairperson by vote of a majority of the
full Committee.

III.  Meetings

      The Committee shall meet in person, telephonically or otherwise on a
regular basis but no less than once per quarter. The Committee may also hold
special meetings or act by unanimous written consent, as may be required.

      The Committee may request any officer or employee of the Company or the
Company's outside counsel or independent auditor to attend a meeting of the
Committee or to meet with any members of, or consultants to, the Committee. The
Committee may, at its option, meet with the

independent auditor without members of management or other personnel of the Company present. The chairperson of the Committee will preside at each meeting of the Committee and, in consultation with the other members of the Committee, shall set the frequency and length of each meeting and the agenda of items to be addressed at each meeting. The chairperson will ensure that the agenda for each meeting is circulated in advance of the meeting. The Committee shall keep minutes of each of its meetings and conference calls and report its actions and any recommendations to the Board after each of the Committee's meeting. The Committee meetings will be governed by the quorum and other procedures generally applicable to meetings of the Board under the Company's bylaws, unless otherwise stated in the bylaws of by resolution of the Board or the Committee. The Committee shall have the authority to delegate any of its responsibilities to subcommittees as the Committee may deem appropriate. IV. Committee Resources and Advisors The Committee shall have the authority to retain outside legal, accounting and/or other consultants to advise the Committee as it deems necessary to carry out its duties. The Committee shall also have the authority to obtain advice and assistance from internal and external legal, human resource or other advisors. The Company will provide the appropriate funding, as determined by the Committee, for payment of compensation to the independent auditors for audit fees, audit related fees, tax fees and all other fees and to any advisors engaged pursuant to the preceding paragraph or otherwise by the Committee. The Company will also provide the appropriate funding, as determined by the Committee, for payment of ordinary administrative expenses of the Committee that are necessary or appropriate in carrying out its duties. V. Responsibilities and Duties The Committee shall have the following authority and responsibilities: Independent Auditors - Appointment and Oversight 1. To be directly and solely responsible for the appointment, compensation retention and oversight of the work of the independent auditors engaged on any audit, including the resolution of disagreements between management and the auditing firm. The independent auditors shall report directly to the Committee. The Committee shall also have the sole authority to directly evaluate and terminate the Company's independent auditor. 2. To approve in advance all auditing services (including comfort letters and statutory audits) performed by the independent auditors. The Committee shall approve in advance all non-audit services performed by the independent auditors as permitted under Section 10A of the Exchange Act. The Committee may delegate to one or more members the -2-

authority to grant pre-approvals required by this section and the decision of such member shall be presented to the Committee at the next scheduled meeting of the Committee. 3. To annually review and discuss with the independent auditors all relationships the independent auditors have with the Company in order to evaluate their continued independence. In this regard, the Committee shall (i) review on an annual basis a written statement from the independent auditors (consistent with Independent Standards Board Standard No. 1) that discloses all relationships and services that may impact the objectivity and independence of the independent auditors; (ii) discuss with the independent auditors any disclosed relationships or services that may impact their objectivity and independence; and (iii) take, or recommend that the full Board take, appropriate action to oversee the independence of the independent auditors. 4. To annually review a report by the independent auditors describing: (i) the independent auditors' internal quality-control procedures; and (ii) any material issues raised by the most recent internal quality-control review, or peer review, of the firm, or by any inquiry or investigation by governmental or professional authorities, within the preceding five years, respecting one or more independent audits carried out by the firm, and any steps taken to deal with such issues. 5. To confirm compliance by the auditors with laws and regulations relating to audit partner rotation. 6. To review all reports required to be submitted by the independent auditors to the Committee under Section 10A of the Exchange Act with respect to critical accounting policies and practices, alternative treatments of financial information within generally accepted accounting principles that have been discussed with management, and other material communications with management. 7. To meet with the independent auditor and senior financial and accounting personnel of the Company prior to the audit to review the planning and staffing of the audit and the scope of the proposed audit for the current year and the audit procedures to be utilized. 8. To review with the independent auditor any problems or difficulties the auditor may have encountered and any management letter provided by the auditor and the Company's response to such letter. Such review should include: A. Any difficulties encountered in the course of the audit work, including any restrictions on the scope of activities or access to required information. B. Any changes required in the planned scope of the internal audit. C. The financial and accounting department responsibilities, budget and staffing. 9. To review the use of auditors other than the independent auditor in cases such as management's request for second opinions. -3-

Financial Statements 10. To review and discuss the annual audited financial statements (including disclosures made in "Management's Discussion and Analysis of Financial Condition and Results of Operations") and any major issues regarding accounting and auditing principles and practices, as well as the adequacy of internal controls with management of the Company including, without limitation, the Chief Financial Officer. 11. To review any analysis prepared by management of the Company and the independent auditor of significant financial reporting issues and judgments made in connection with the preparation of the Company's financial statements. 12. To discuss with the independent auditor the matters required to be discussed by Statement on Auditing Standards No. 61 relating to the conduct of the audit. Document that such discussion has taken place noting the date, participants and place of the discussion, but not the nature and scope of such discussion so that frank and open communication between the Committee and the independent auditor may occur. 13. To obtain assurance from the independent auditor that it has reviewed the Company's quarterly financial reports within the meaning of the procedures set forth in Statement on Auditing Standards No. 71 prior to the filing of the Company's Form 10-Q for each quarter. 14. To review with management of the Company and the independent auditor the Company's quarterly financial statements (including disclosures made in "Management's Discussion and Analysis of Financial Condition and Results of Operations") prior to the filing of the Company's Form 10-Q for each quarter and, if possible, prior to any quarterly earnings announcement. 15. To review the financial statements contained in the annual report to stockholders with management of the Company and the independent auditor to determine that the independent auditor is satisfied with the disclosure and contents of the financial statements to be presented to the stockholders of the Company. Accounting and Financial Reporting Processes and Risk Assessment 16. To periodically discuss with the independent auditors, without management being present, their judgments about the quality, appropriateness, and acceptability of the Company's accounting principles and financial disclosure practices, as applied in its financial reporting, and the completeness and accuracy of the Company's financial statements 17. To review with management, the independent auditors and the Company's legal advisors (as appropriate) any legal, regulatory or compliance matters, including any correspondence with regulators or government agencies and any employee complaints or -4-

published reports that raise material issues regarding the Company's financial statements or accounting policies and any significant changes in accounting standards or rules promulgated by the Financial Standards Board, the SEC or other regulatory authorities. 18. To discuss generally the types of information to be disclosed and the presentation to be made in earnings releases, including the use of non-GAAP financial data, and in financial information and earnings guidance (if any) given to analysts and ratings agencies. 19. To review (if any) any material off-balance sheet transactions, arrangements and obligations (including contingent obligations) and any other relationships of the Company with unconsolidated entities that may have a current or future material effect on the Company's financial statements. 20. To review the Company's major financial risk exposures, the Company's system of internal controls and policies relating to risk assessment and management and the steps management has taken to monitor and control such exposures. 21. To review and discuss with the independent auditor, the Company's Chief Financial Officer and other senior financial and accounting personnel: (a) the adequacy and effectiveness of the Company's internal controls (including any significant deficiencies and significant changes in internal controls reported to the Committee by the independent auditor or management; (b) the Company's internal audit procedures; and (c) the adequacy and effectiveness of the Company's disclosures controls and procedures, and management reports thereon. 22. To review any recommendations of the independent auditor, the Company's Chief Financial Officer and other senior financial and accounting personnel for the improvement of internal control procedures or particular areas where new or more detailed controls or procedures are desirable. 23. To review major changes to the Company's auditing and accounting principles and practices as suggested by the independent auditor, Chief Financial Officer, other senior financial and accounting personnel or management of the Company. 24. To review the significant reports to management of the Company prepared by the Chief Financial Officer and management's responses. 25. To advise the Board with respect to the Company's policies and procedures regarding compliance with relevant laws and regulations 26. To meet at least annually with the Chief Financial Officer and the independent auditor in separate executive sessions. -5-

Internal Controls 27. To establish procedures for the receipt, retention and treatment of complaints concerning accounting, internal accounting controls and auditing matters; and the confidential, anonymous submission by employees of the Company of concerns regarding accounting or auditing matters. 28. To review the reports of the Chief Executive Officer and Chief Financial Officer (in connection with their required certifications for the Company's filings with the SEC) regarding any significant deficiencies or material weaknesses in the design or operation of internal controls, and any fraud that involves management or other employees who have a role in the Company's internal controls. Other 29. To take steps to ensure that the Company shall not hire any person to perform a financial reporting oversight role who has provided more than ten hours of audit, review or attest services as part of the auditors' audit engagement team within the past year. For clarity a financial reporting oversight role refers to a role in which an individual has direct responsibility for or oversight of those who prepare the Company's financial statements and related information which will be included in the Company's filings with the SEC, and also includes members of the Board who may have significant interaction with the audit engagement team. 30. To review and reassess the adequacy of this Charter annually and recommend any proposed changes to the Board for approval. 31. To have an annual discussion regarding the effectiveness of the Committee and its processes and procedures. 32. To review all press releases and publicly-distributed information of a financial nature prior to dissemination. 33. To review the appointment and replacement of the Chief Financial Officer and other senior financial and accounting personnel. 34. To prepare a report of the Committee as required by the rules of the SEC and include such report in the Company's annual proxy statement. 35. To review and approve, pursuant to the relevant NASDAQ and SEC rules and regulations, all related party transactions required to be disclosed pursuant to Regulation S-K, Item 404 of the SEC, as such regulation may be amended from time to time. 36. To review and address any notifications regarding violations of the Company's Code of Ethics and Business Conduct. -6-

VI. Limitations on Audit Committee's Role The Committee members are not professional accountants or auditors and their functions are not intended to duplicate or to certify the activities of management and the independent auditor, nor can the Committee certify that the independent auditor is "independent" under applicable rules. The Committee serves a board level oversight role where it oversees the relationship with the independent auditor, as set forth in this charter, and provides advice, counsel and general direction, as it deems appropriate, to management and the auditors on the basis of the information it receives, discussions with the auditor, and the experience of the Committee's members in business, financial and accounting matters. -7-