The Annual Meeting of Stockholders of SIGA Technologies, Inc. will be held on Tuesday, June 15, 2021, at 10:30 a.m., Eastern Time. Due to the public health and safety concerns related to the COVID-19 pandemic and to support the health and well-being of our stockholders, employees, Board of Directors and others, we intend to host this meeting as a virtual-only meeting that will be held via live audio webcast online at www.virtualshareholdermeeting.com/SIGA2021.