SIGA TECHNOLOGIES INC — Director's Dealing 2012

Mar 1, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SIGA TECHNOLOGIES INC (SIGA)
CIK: 0001010086
Period of Report: 2012-02-28

Reporting Person: ROSE ERIC A MD (Director, Chief Executive Officer)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-28	Restricted Stock Units	$	A	200000	Acquired		Common Stock, par value $.0001 per share (200000)	Direct

Footnotes

F1: Each restricted stock unit ("RSU") converts into one share of common stock of SIGA Technologies, Inc. (the "Issuer") on a one for one basis.

F2: The RSUs vest in equal yearly installments over a period of three (3) years, with the first 1/3 of such RSUs vesting on February 28, 2013, the second 1/3 of such RSUs vesting on February 28, 2014 and the remaining 1/3 of such RSUs vesting on February 28, 2015.

F3: The RSUs reflected on this Form 4 were granted in recognition of Dr. Rose's significant contribution to advancing the development of ST-246? and helping the Issuer reach a definitive agreement with the Biomedical Advanced Research and Development Authority.