Transaction Details

Footnotes

Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis. | Reflects RSUs that were cash-settled, per the terms of the compensation program for Board Directors and as noted on the Form 4 filed on June 13, 2024. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs. | The RSUs were granted on June 11, 2024, and fully vested on the date of the Company's 2025 annual meeting of stockholders. | RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 7,235 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the board of directors. | The RSUs fully vest on the date of the Company's 2026 annual meeting of stockholders.