SIGA

SEC source: 0000950170-24-081633 · ownership.xml · derivative · entry 3

Hruby Dennis E · CIK 0001301548 · EVP & Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 32,258

Underlying: Common Stock, par value $.0001 per share · 32,258 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: RSUs represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs were granted on May 11, 2023 and vest over two years, with the first 1/2 of such RSUs vesting on July 1, 2024 and the remaining 1/2 of such RSUs vesting on July 1, 2025.

F2 · derivative.exercise_date: RSUs represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs were granted on May 11, 2023 and vest over two years, with the first 1/2 of such RSUs vesting on July 1, 2024 and the remaining 1/2 of such RSUs vesting on July 1, 2025.

F2 · derivative.expiration_date: RSUs represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs were granted on May 11, 2023 and vest over two years, with the first 1/2 of such RSUs vesting on July 1, 2024 and the remaining 1/2 of such RSUs vesting on July 1, 2025.

SEC source: 0000950170-24-081633 · ownership.xml · nonDerivative · entry 2

Hruby Dennis E · CIK 0001301548 · EVP & Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 169,256

F1 · shares: Represents the withholding by SIGA Technologies, Inc. of shares of Common Stock (based on $7.55 per share, the closing stock price on July 1, 2024) to satisfy tax withholding obligations associated with the vesting of restricted stock units ("RSUs") and the consequent issuance of Common Stock.

SEC source: 0000950170-24-081633 · ownership.xml · nonDerivative · entry 1

Hruby Dennis E · CIK 0001301548 · EVP & Chief Scientific Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 179,723

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-081630 · ownership.xml · derivative · entry 3

Luckshire Daniel J · CIK 0001512677 · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,193

Underlying: Common Stock, par value $.0001 per share · 24,194 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F2 · derivative.exercise_price: RSUs represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs were granted on May 11, 2023 and vest over two years, with the first 1/2 of such RSUs vesting on July 1, 2024 and the remaining 1/2 of such RSUs vesting on July 1, 2025.

F2 · derivative.exercise_date: RSUs represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs were granted on May 11, 2023 and vest over two years, with the first 1/2 of such RSUs vesting on July 1, 2024 and the remaining 1/2 of such RSUs vesting on July 1, 2025.

F2 · derivative.expiration_date: RSUs represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs were granted on May 11, 2023 and vest over two years, with the first 1/2 of such RSUs vesting on July 1, 2024 and the remaining 1/2 of such RSUs vesting on July 1, 2025.

SEC source: 0000950170-24-081630 · ownership.xml · nonDerivative · entry 2

Luckshire Daniel J · CIK 0001512677 · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 263,217

F1 · shares: Represents the withholding by SIGA Technologies, Inc. of shares of Common Stock (based on $7.55 per share, the closing stock price on July 1, 2024) to satisfy tax withholding obligations associated with the vesting of restricted stock units ("RSUs") and the consequent issuance of Common Stock.

SEC source: 0000950170-24-081630 · ownership.xml · nonDerivative · entry 1

Luckshire Daniel J · CIK 0001512677 · Executive VP & CFO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 275,564

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

SEC source: 0000950170-24-073052 · ownership.xml · derivative · entry 3

Varma Jay · CIK 0001954321 · Director · EVP & Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.0001 per share · 24,712 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

SEC source: 0000950170-24-073052 · ownership.xml · nonDerivative · entry 2

Varma Jay · CIK 0001954321 · Director · EVP & Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,298

F2 · kind: 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 15, 2023. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.

SEC source: 0000950170-24-073052 · ownership.xml · nonDerivative · entry 1

Varma Jay · CIK 0001954321 · Director · EVP & Chief Medical Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,712

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

SEC source: 0000950170-24-073048 · ownership.xml · derivative · entry 4

Phillips Holly L. · CIK 0001867723 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,084

Underlying: Common Stock, par value $.0001 per share · 19,084 shares

Expires not disclosed

F4 · derivative.exercise_price: RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 5,725 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the board of directors.

F5 · derivative.exercise_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

F5 · derivative.expiration_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

SEC source: 0000950170-24-073048 · ownership.xml · derivative · entry 3

Phillips Holly L. · CIK 0001867723 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.0001 per share · 24,712 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

SEC source: 0000950170-24-073048 · ownership.xml · nonDerivative · entry 2

Phillips Holly L. · CIK 0001867723 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,514

F2 · kind: 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 15, 2023. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.

SEC source: 0000950170-24-073048 · ownership.xml · nonDerivative · entry 1

Phillips Holly L. · CIK 0001867723 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,928

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

SEC source: 0000950170-24-073042 · ownership.xml · derivative · entry 4

Nemirovsky Julian · CIK 0001835535 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,084

Underlying: Common Stock, par value $.0001 per share · 19,084 shares

Expires not disclosed

F4 · derivative.exercise_price: RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 5,725 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the board of directors.

F5 · derivative.exercise_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

F5 · derivative.expiration_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

SEC source: 0000950170-24-073042 · ownership.xml · derivative · entry 3

Nemirovsky Julian · CIK 0001835535 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.0001 per share · 24,712 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

SEC source: 0000950170-24-073042 · ownership.xml · nonDerivative · entry 2

Nemirovsky Julian · CIK 0001835535 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,514

F2 · kind: 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 15, 2023. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.

SEC source: 0000950170-24-073042 · ownership.xml · nonDerivative · entry 1

Nemirovsky Julian · CIK 0001835535 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,928

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

SEC source: 0000950170-24-073033 · ownership.xml · derivative · entry 4

Nabel Gary J. · CIK 0001867450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,084

Underlying: Common Stock, par value $.0001 per share · 19,084 shares

Expires not disclosed

F4 · derivative.exercise_price: RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 5,725 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the board of directors.

F5 · derivative.exercise_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

F5 · derivative.expiration_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

SEC source: 0000950170-24-073033 · ownership.xml · derivative · entry 3

Nabel Gary J. · CIK 0001867450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.0001 per share · 24,712 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

SEC source: 0000950170-24-073033 · ownership.xml · nonDerivative · entry 2

Nabel Gary J. · CIK 0001867450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 43,514

F2 · kind: 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 15, 2023. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.

SEC source: 0000950170-24-073033 · ownership.xml · nonDerivative · entry 1

Nabel Gary J. · CIK 0001867450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,928

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

SEC source: 0000950170-24-073019 · ownership.xml · derivative · entry 4

Marshall Joseph W III · CIK 0001458584 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,084

Underlying: Common Stock, par value $.0001 per share · 19,084 shares

Expires not disclosed

F4 · derivative.exercise_price: RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 5,725 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the board of directors.

F5 · derivative.exercise_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

F5 · derivative.expiration_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

SEC source: 0000950170-24-073019 · ownership.xml · derivative · entry 3

Marshall Joseph W III · CIK 0001458584 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.0001 per share · 24,712 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

SEC source: 0000950170-24-073019 · ownership.xml · nonDerivative · entry 2

Marshall Joseph W III · CIK 0001458584 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 216,283

F2 · kind: 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 15, 2023. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.

SEC source: 0000950170-24-073019 · ownership.xml · nonDerivative · entry 1

Marshall Joseph W III · CIK 0001458584 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 223,697

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

SEC source: 0000950170-24-073012 · ownership.xml · derivative · entry 4

Knisely Evan A. · CIK 0001981537 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,084

Underlying: Common Stock, par value $.0001 per share · 19,084 shares

Expires not disclosed

F4 · derivative.exercise_price: RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 5,725 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the board of directors.

F5 · derivative.exercise_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

F5 · derivative.expiration_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

SEC source: 0000950170-24-073012 · ownership.xml · derivative · entry 3

Knisely Evan A. · CIK 0001981537 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.0001 per share · 24,712 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

SEC source: 0000950170-24-073012 · ownership.xml · nonDerivative · entry 2

Knisely Evan A. · CIK 0001981537 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,298

F2 · kind: 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 15, 2023. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.

SEC source: 0000950170-24-073012 · ownership.xml · nonDerivative · entry 1

Knisely Evan A. · CIK 0001981537 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,712

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

SEC source: 0000950170-24-073004 · ownership.xml · derivative · entry 4

Ford Harold Eugene Jr. · CIK 0001799464 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,084

Underlying: Common Stock, par value $.0001 per share · 19,084 shares

Expires not disclosed

F4 · derivative.exercise_price: RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 5,725 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the board of directors.

F5 · derivative.exercise_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

F5 · derivative.expiration_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

SEC source: 0000950170-24-073004 · ownership.xml · derivative · entry 3

Ford Harold Eugene Jr. · CIK 0001799464 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.0001 per share · 24,712 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

SEC source: 0000950170-24-073004 · ownership.xml · nonDerivative · entry 2

Ford Harold Eugene Jr. · CIK 0001799464 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,298

F2 · kind: 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 15, 2023. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.

SEC source: 0000950170-24-073004 · ownership.xml · nonDerivative · entry 1

Ford Harold Eugene Jr. · CIK 0001799464 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,712

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

SEC source: 0000950170-24-072999 · ownership.xml · derivative · entry 4

DURNAN JAYMIE A · CIK 0001187313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 19,084

Underlying: Common Stock, par value $.0001 per share · 19,084 shares

Expires not disclosed

F4 · derivative.exercise_price: RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 5,725 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the board of directors.

F5 · derivative.exercise_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

F5 · derivative.expiration_date: The RSUs fully vest on the date of the Company's 2025 annual meeting of stockholders.

SEC source: 0000950170-24-072999 · ownership.xml · derivative · entry 3

DURNAN JAYMIE A · CIK 0001187313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.0001 per share · 24,712 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs were granted on June 13, 2023, and fully vested on the date of the Company's 2024 annual meeting of stockholders.

SEC source: 0000950170-24-072999 · ownership.xml · nonDerivative · entry 2

DURNAN JAYMIE A · CIK 0001187313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 58,514

F2 · kind: 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 15, 2023. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.

SEC source: 0000950170-24-072999 · ownership.xml · nonDerivative · entry 1

DURNAN JAYMIE A · CIK 0001187313 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 65,928

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

SEC source: 0000950172-24-000112 · form4.xml · derivative · entry 6

Miller Larry R. · CIK 0002016490 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,761

Underlying: Common Stock, par value $.0001 per share · 20,761 shares

Expires not disclosed

F5 · derivative.exercise_price: Performance stock units ("PSUs") represent contingent rights to receive Common Stock on a one-for-one basis. These PSUs vest as follows: (a) one-third of these PSUs vest if, during any period of 90 consecutive trading days during the three-year period beginning on the grant date (the "Performance Period"), the Issuer's Common Stock closing stock price (plus the per share value of any dividends declared during the measurement date) (the "Stock Price") is at or above $7.00, (b) one-third of these PSUs vest, if during any period of 90 consecutive trading days during the Performance Period, the Stock Price is at or above $8.00, and (c) one-third of these PSUs vest, if during any 90 consecutive trading days during the Performance Period, the Stock Price is at or above $9.00.

F5 · derivative.exercise_date: Performance stock units ("PSUs") represent contingent rights to receive Common Stock on a one-for-one basis. These PSUs vest as follows: (a) one-third of these PSUs vest if, during any period of 90 consecutive trading days during the three-year period beginning on the grant date (the "Performance Period"), the Issuer's Common Stock closing stock price (plus the per share value of any dividends declared during the measurement date) (the "Stock Price") is at or above $7.00, (b) one-third of these PSUs vest, if during any period of 90 consecutive trading days during the Performance Period, the Stock Price is at or above $8.00, and (c) one-third of these PSUs vest, if during any 90 consecutive trading days during the Performance Period, the Stock Price is at or above $9.00.

F5 · derivative.expiration_date: Performance stock units ("PSUs") represent contingent rights to receive Common Stock on a one-for-one basis. These PSUs vest as follows: (a) one-third of these PSUs vest if, during any period of 90 consecutive trading days during the three-year period beginning on the grant date (the "Performance Period"), the Issuer's Common Stock closing stock price (plus the per share value of any dividends declared during the measurement date) (the "Stock Price") is at or above $7.00, (b) one-third of these PSUs vest, if during any period of 90 consecutive trading days during the Performance Period, the Stock Price is at or above $8.00, and (c) one-third of these PSUs vest, if during any 90 consecutive trading days during the Performance Period, the Stock Price is at or above $9.00.

SEC source: 0000950172-24-000112 · form4.xml · derivative · entry 5

Miller Larry R. · CIK 0002016490 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,761

Underlying: Common Stock, par value $.0001 per share · 20,761 shares

Expires not disclosed

F4 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs vest over three years, one-third on each of the first three anniversaries of the date of grant.

F4 · derivative.exercise_date: Restricted stock units ("RSUs") represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs vest over three years, one-third on each of the first three anniversaries of the date of grant.

F4 · derivative.expiration_date: Restricted stock units ("RSUs") represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs vest over three years, one-third on each of the first three anniversaries of the date of grant.

SEC source: 0000950172-24-000112 · form4.xml · derivative · entry 4

Miller Larry R. · CIK 0002016490 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,504

Underlying: Common Stock, par value $.0001 per share · 25,504 shares

Expires 2034-03-25

F3 · derivative.exercise_date: The options vest over three years, one-third on each of the first three anniversaries of the date of grant.

SEC source: 0000950172-24-000112 · form4.xml · derivative · entry 3

Miller Larry R. · CIK 0002016490 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 61,347

Underlying: Common Stock, par value $.0001 per share · 61,347 shares

Expires 2034-03-25

F2 · derivative.exercise_date: The options vest over two years, one-half on each of the first two anniversaries of the date of grant.

SEC source: 0000950172-24-000112 · form4.xml · nonDerivative · entry 2

Miller Larry R. · CIK 0002016490 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,900

F1 · shares: Represents the withholding by SIGA Technologies, Inc. of shares of Common Stock (based on $8.35 per share, the closing stock price on March 25, 2024) to satisfy tax withholding obligations associated with the grant of Common Stock reported herein that immediately vested upon grant.

SEC source: 0000950172-24-000112 · form4.xml · nonDerivative · entry 1

Miller Larry R. · CIK 0002016490 · General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 49,940

SEC source: 0001209191-24-002427 · doc4.xml · derivative · entry 4

Nguyen Diem · CIK 0001814338 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 177,865

Underlying: Common Stock, par value $.0001 per share · 177,865 shares

Expires not disclosed

F4 · derivative.exercise_price: Performance stock units ("PSUs") represent contingent rights to receive Common Stock on a one-for-one basis. These PSUs vest as follows: (a) one-third of these PSUs vest if, during any period of 90 consecutive trading days during the three-year period beginning on the grant date (the "Performance Period"), the Issuer's Common Stock closing stock price (plus the per share value of any dividends issued during the measurement date) (the "Stock Price") is at or above $7.00, (b) one-third of these PSUs vest, if during any period of 90 consecutive trading days during the Performance Period, the Stock Price is at or above $8.00, and (c) one-third of these PSUs vest, if during any 90 consecutive trading days during the Performance Period, the Stock Price is at or above $9.00.

F4 · derivative.exercise_date: Performance stock units ("PSUs") represent contingent rights to receive Common Stock on a one-for-one basis. These PSUs vest as follows: (a) one-third of these PSUs vest if, during any period of 90 consecutive trading days during the three-year period beginning on the grant date (the "Performance Period"), the Issuer's Common Stock closing stock price (plus the per share value of any dividends issued during the measurement date) (the "Stock Price") is at or above $7.00, (b) one-third of these PSUs vest, if during any period of 90 consecutive trading days during the Performance Period, the Stock Price is at or above $8.00, and (c) one-third of these PSUs vest, if during any 90 consecutive trading days during the Performance Period, the Stock Price is at or above $9.00.

F4 · derivative.expiration_date: Performance stock units ("PSUs") represent contingent rights to receive Common Stock on a one-for-one basis. These PSUs vest as follows: (a) one-third of these PSUs vest if, during any period of 90 consecutive trading days during the three-year period beginning on the grant date (the "Performance Period"), the Issuer's Common Stock closing stock price (plus the per share value of any dividends issued during the measurement date) (the "Stock Price") is at or above $7.00, (b) one-third of these PSUs vest, if during any period of 90 consecutive trading days during the Performance Period, the Stock Price is at or above $8.00, and (c) one-third of these PSUs vest, if during any 90 consecutive trading days during the Performance Period, the Stock Price is at or above $9.00.

SEC source: 0001209191-24-002427 · doc4.xml · derivative · entry 3

Nguyen Diem · CIK 0001814338 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 167,707

Underlying: Common Stock, par value $.0001 per share · 167,707 shares

Expires not disclosed

F3 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs vest over three years, one-third on each of the first three anniversaries of the date of grant.

F3 · derivative.exercise_date: Restricted stock units ("RSUs") represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs vest over three years, one-third on each of the first three anniversaries of the date of grant.

F3 · derivative.expiration_date: Restricted stock units ("RSUs") represent contingent rights to receive Common Stock on a one-for-one basis. The RSUs vest over three years, one-third on each of the first three anniversaries of the date of grant.

SEC source: 0001209191-24-002427 · doc4.xml · derivative · entry 2

Nguyen Diem · CIK 0001814338 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 219,212

Underlying: Common Stock, par value $.0001 per share · 219,212 shares

Expires 2034-01-27

F2 · derivative.exercise_date: The options vest over three years, one-third on each of the first three anniversaries of the date of grant.

SEC source: 0001209191-24-002427 · doc4.xml · derivative · entry 1

Nguyen Diem · CIK 0001814338 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,606

Underlying: Common Stock, par value $.0001 per share · 109,606 shares

Expires 2034-01-27

F1 · derivative.exercise_date: The options vest over two years, one-half on each of the first two anniversaries of the date of grant.

SEC source: 0001209191-23-037429 · doc4.xml · derivative · entry 4

Nabel Gary J. · CIK 0001867450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,712

Underlying: Common Stock, par value $.0001 per share · 24,712 shares

Expires not disclosed

F4 · derivative.exercise_price: RSUs represent contingent rights to receive common stock of the Company on a one-for-one basis, of which up to 7,414 RSUs are expected to settle in cash value thereof but may be settled in shares at the discretion of the board of directors.

F5 · derivative.exercise_date: The RSUs fully vest on the date of the Company's 2024 annual meeting of stockholders.

F5 · derivative.expiration_date: The RSUs fully vest on the date of the Company's 2024 annual meeting of stockholders.

SEC source: 0001209191-23-037429 · doc4.xml · derivative · entry 3

Nabel Gary J. · CIK 0001867450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 0

Underlying: Common Stock, par value $.0001 per share · 14,620 shares

Expires not disclosed

Exercise/conversion can include RSU settlement. Transaction price and option strike are different fields; a missing price is not zero. Derivative and underlying rows can describe the same event.

F1 · derivative.exercise_price: Restricted stock units ("RSUs") represent contingent rights to receive common stock of SIGA Technologies, Inc. (the "Company") on a one-for-one basis.

F3 · derivative.exercise_date: The RSUs were granted on June 14, 2022, and fully vested on the date of the Company's 2023 annual meeting of stockholders.

F3 · derivative.expiration_date: The RSUs were granted on June 14, 2022, and fully vested on the date of the Company's 2023 annual meeting of stockholders.

SEC source: 0001209191-23-037429 · doc4.xml · nonDerivative · entry 2

Nabel Gary J. · CIK 0001867450 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,216

F2 · kind: 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 16, 2022. Partial cash-settlement of RSUs under the Board compensation program is designed to address tax obligations in connection with the vesting of RSUs.