SIGA TECHNOLOGIES INC — Director's Dealing 2012

Jun 19, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SIGA TECHNOLOGIES INC (SIGA)
CIK: 0001010086
Period of Report: 2012-06-19

Reporting Person: MacAndrews & Forbes Holdings Inc. (Director, 10% Owner)
Reporting Person: PERELMAN RONALD O (Director, 10% Owner)
Reporting Person: MacAndrews & Forbes LLC (Director, 10% Owner)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-06-19	Warrant (Right to Buy)	$2.95	J	247272	Disposed	2012-06-19	Common Stock (247272)	Indirect
2012-06-19	Warrant (Right to Buy)	$2.95	J	247272	Acquired	2014-06-19	Common Stock (247272)	Indirect

Footnotes

F1: These warrants to purchase shares of the common stock ("Common Stock") of SIGA Technologies, Inc. ("SIGA") were acquired by MacAndrews & Forbes LLC on June 19, 2008 pursuant to a Letter Agreement, by and between SIGA and MacAndrews & Forbes LLC. These warrants were previously reported at the time of acquisition as the right to buy 238,000 shares of Common Stock at an exercise price of $3.06 per share, but, pursuant to the anti-dilution provisions of the warrants, were adjusted to reflect the effects of certain of SIGA's subsequent issuances.

F2: On June 19, 2012, the term of a Warrant Agreement with MacAndrews & Forbes LLC, covering 247,272 shares and initially issued in 2008, was extended to June 19, 2014.