Robin E. Abrams - Jul 31, 2021 Form 4 Insider Report for SIGA TECHNOLOGIES INC (SIGA)

Role
General Counsel and CAO
Signature
/s/ Robin E. Abrams
Stock symbol
SIGA
Transactions as of
Jul 31, 2021
Transactions value $
-$71,987
Form type
4
Date filed
8/3/2021, 04:05 PM

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 +26,667 +77.47% $0.00 61,088 Jul 31, 2021 Direct
transaction SIGA Common Stock, Par Value $.0001 Per Share -Tax liability -$71,987 -11,301 -18.5% $6.37 49,787 Jul 31, 2021 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 -26,667 -100% $0.00 0 Jul 31, 2021 Common Stock, Par Value $.0001 Per Share 26,667 Direct F2

Explanation of Responses:

Id Content
F1 Represents the withholding by SIGA Technologies, Inc. of shares of Common Stock (based on $6.37 per share, the closing stock price on July 30, 2021) 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 July 31, 2019 and vested over two years, with the first 1/2 of such RSUs vesting on July 31, 2020 and the remaining 1/2 of such RSUs vesting on July 31, 2021.