Larry R. Miller - 25 Mar 2025 Form 4 Insider Report for SIGA TECHNOLOGIES INC (SIGA)

Role: General Counsel
Signature: /s/ Larry R. Miller
Issuer symbol: SIGA
Transactions as of: 25 Mar 2025
Net transactions value: -$16,280
Form type: 4
Filing time: 26 Mar 2025, 17:01:41 UTC
Previous filing: 14 Mar 2025
Next filing: 21 Apr 2025
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SIGA	Common Stock, par value $.0001 per share	Options Exercise	$0	+6,920	+22%	$0.000000	37,820	25 Mar 2025	Direct
transaction	SIGA	Common Stock, par value $.0001 per share	Tax liability	$16,280	-2,764	-7.3%	$5.89	35,056	25 Mar 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SIGA	Restricted Stock Units	Options Exercise	$0	-6,920	-33%	$0.000000	13,841	25 Mar 2025	Common Stock, par value $.0001 per share	6,920		Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the withholding by SIGA Technologies, Inc. of shares of Common Stock (based on $5.89 per share, the closing stock price on March 25, 2025) to satisfy tax withholding obligations associated with the vesting of restricted stock units ("RSUs") and the consequent issuance of Common Stock.
F2	RSUs represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs were granted on March 25, 2024 and vest over three years, one-third on each of the first three anniversaries of the date of grant.