NEW YORK--(BUSINESS WIRE)--SIGA Technologies, Inc. (NASDAQ: SIGA), a company specializing in the development of pharmaceutical agents to fight biowarfare pathogens, announced today that the company’s senior management will discuss SIGA’s results of operations for the first quarter during a conference call scheduled for Tuesday, May 8, 2007, at 11:00 a.m. Eastern. The company’s financial results for the first quarter are scheduled to be released earlier that day.