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                       SECURITIES AND EXCHANGE COMMISSION

                             Washington, D.C. 20549

                                   FORM 8-K/A

                                (Amendment No. 1)

                                 CURRENT REPORT

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

Date of Report (Date of earliest event reported): September 19, 2001
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                             SIGA Technologies, Inc.
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         Delaware                   0-23047                    13-3864870
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(State or other jurisdiction    (Commission File              (IRS Employer
    of incorporation)               Number)                Identification No.)

 420 Lexington Avenue, New York,  New York                       10170
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  (Address of principal executive offices)                     (Zip Code)

Registrant's telephone number, including area code: (212) 672-9100
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                                 NOT APPLICABLE
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          (Former name or former address, if changed since last report)

Item 7. ADJUSTED FINANCIAL STATEMENT (A) Adjustments to the June 30, 2001 Balance Sheet EXHIBIT 7(A) The following schedule presents unaudited adjustments to the Company's balance sheet for the period ended June 30, 2001. The adjustments include the sale by the Company of 409,636 shares of its common stock and warrants to purchase 307,226 shares of common stock and the receipt by the Company of approximately $1,150,000 in net proceeds and the conversion of the remaining 6% convertible debt and interest thereon, as described in Item 5 of the Form 8-K filed on September 26, 2001. The adjustments also include the unaudited net loss of the Company for the two months ended August 31, 2001, which includes a non-cash charge of $612,750 to reflect the granting of vested stock options at below market price to the Company's directors. The adjustments only include selected items and do not reflect all the changes that have occurred since June 30, 2001, and is not necessarily indicative of the Company's future operating results. As Reported Adjustments Adjusted as of 30-Jun-01 31-Aug-01 ASSETS Current Assets Cash & Cash Equiv $ 1,184,228 $ 1,150,000 $ 2,334,228 Accounts Receivable 26,312 26,312 Prepaid Expenses 166,628 166,628 ------------ ------------ Total Current Assets 1,377,168 1,150,000 2,527,168 ------------ ------------ ------------ Fixed Asset Property, Plant, & Equipment-net 872,778 872,778 ------------ ------------ Other Assets Investments 275,106 275,106 Other Assets 159,983 159,983 ------------ ------------ Total Other Assets 435,089 435,089 ------------ ------------ TOTAL ASSETS $ 2,685,035 $ 1,150,000 $ 3,835,035 ------------ ------------ ------------ LIABILITIES & EQUITY Current Liabilities Accounts Payable $ 340,854 $ 340,854 Accrued Expenses 192,143 192,143 Capital Lease Obligations 366,683 366,683 Deferred Revenue 5,000 5,000 ------------ ------------ Total Current Liabilities 904,680 904,680 ------------ ------------ Long Term Liabilities 6% Convertible Note 78,010 (78,010) -- Accrued Interest 8,500 (8,500) -- ------------ ------------ ------------ Total Long Term Liabilities 86,510 (86,510) -- ------------ ------------ ------------ Equity Preferred Stock 938,676 86,510 1,025,186 Common Stock 805 41 846 Additional Paid-in Capital 24,378,144 1,800,209 26,178,353 Deferred Compensation (294,361) (294,361) Retained Earnings (23,329,419) (1,121,028) (24,450,447) ------------ ------------ ------------ Total Equity 1,693,845 765,732 2,459,577 ------------ ------------ ------------ TOTAL LIABILITIES & EQUITY $ 2,685,035 $ 679,222 $ 3,364,257 ------------ ------------ ------------

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. October 12, 2001 SIGA TECHNOLOGIES, INC. By: /s/ Thomas N. Konatich --------------------------------------- Thomas N. Konatich Chief Financial Officer and Secretary