 NEW YORK, July 29, 2021 GLOBE NEWSWIRE -- SIGA Technologies, Inc. SIGA NASDAQ: SIGA, a commercial-stage pharmaceutical company, today announced that management will host a webcast and conference call to provide a business update at 4:30 P.M. ET on Thursday, August 5th, 2021. Participating on the call will be Dr. Phil Gomez, Chief Executive Officer, and Daniel Luckshire, Chief Financial Officer. 