OSG

SEC source: 0000874501-25-000042 · wk-form4_1741638358.xml · nonDerivative · entry 1

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,192

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 · shares: The reporting person acquired 16,874 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the simultaneous vesting and settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award, which had a three year performance period and vested on March 6, 2025.

SEC source: 0000874501-25-000040 · wk-form4_1741638194.xml · derivative · entry 3

Eisman Robert Bryan · CIK 0001477761 · Sr. MD & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 50,852

Underlying: Common Stock · 21,117 shares

Expires not disclosed

F3 · security: Each DSU represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_price: Each DSU represents a contingent right to receive one share of common stock of the Company.

F4 · shares: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSU and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F4 · derivative.exercise_date: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSU and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F4 · derivative.expiration_date: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSU and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000040 · wk-form4_1741638194.xml · nonDerivative · entry 2

Eisman Robert Bryan · CIK 0001477761 · Sr. MD & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,887

F2 · shares: As part of the vesting and settlement of the 2022 LTIP award, 1,271 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000040 · wk-form4_1741638194.xml · nonDerivative · entry 1

Eisman Robert Bryan · CIK 0001477761 · Sr. MD & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 68,887

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 · shares: The reporting person acquired 1,271 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the simultaneous vesting and settlement of the reporting person's 2022 Long Term Incentive Plan award, which had a three year performance period and vested on March 6, 2025.

SEC source: 0000874501-25-000036 · wk-form4_1741637904.xml · derivative · entry 3

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 159,799

Underlying: Common Stock · 66,577 shares

Expires not disclosed

F3 · security: Each DSU represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_price: Each DSU represents a contingent right to receive one share of common stock of the Company.

F4 · shares: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSU and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F4 · derivative.exercise_date: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSU and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F4 · derivative.expiration_date: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSU and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000036 · wk-form4_1741637904.xml · nonDerivative · entry 2

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,082

F2 · shares: As part of the vesting and settlement of a portion of the 2022 LTIP award, 2,446 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000036 · wk-form4_1741637904.xml · nonDerivative · entry 1

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 158,528

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 · security: The reporting person acquired 2,446 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the simultaneous vesting and settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award, which had a three year performance period and vested on March 6, 2025.

F1 · shares: The reporting person acquired 2,446 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the simultaneous vesting and settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award, which had a three year performance period and vested on March 6, 2025.

SEC source: 0000874501-25-000038 · wk-form4_1741638025.xml · derivative · entry 3

Ksenak Stephen Michael · CIK 0001527850 · Sr. MD & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 129,146

Underlying: Common Stock · 53,999 shares

Expires not disclosed

F3 · security: Each DSU represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_price: Each DSU represents a contingent right to receive one share of common stock of the Company.

F4 · shares: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSUs and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F4 · derivative.exercise_date: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSUs and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F4 · derivative.expiration_date: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSUs and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000038 · wk-form4_1741638025.xml · nonDerivative · entry 2

Ksenak Stephen Michael · CIK 0001527850 · Sr. MD & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,576

F2 · shares: As part of the vesting and settlement of a portion of the 2022 LTIP award, 1,967 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000038 · wk-form4_1741638025.xml · nonDerivative · entry 1

Ksenak Stephen Michael · CIK 0001527850 · Sr. MD & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,576

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 · shares: The reporting person acquired 1,967 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the simultaneous vesting and settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award, which had a three year performance period and vested on March 6, 2025.

SEC source: 0000874501-25-000034 · wk-form4_1741637697.xml · derivative · entry 3

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 140,174

Underlying: Common Stock · 59,408 shares

Expires not disclosed

F3 · security: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · shares: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSU and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F4 · derivative.exercise_date: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSU and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F4 · derivative.expiration_date: Represents the aggregate amount of performance stock units ("PSUs") that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of PSU and restricted stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000034 · wk-form4_1741637697.xml · nonDerivative · entry 2

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,707

F2 · shares: As part of the vesting and settlement of a portion of the 2022 LTIP award, 2,154 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000034 · wk-form4_1741637697.xml · nonDerivative · entry 1

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,861

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 · shares: The reporting person acquired 2,154 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the simultaneous vesting and settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award, which had a three year performance period and vested on March 6, 2025.

SEC source: 0000874501-25-000029 · wk-form4_1741131004.xml · derivative · entry 8

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 93,222

Underlying: Common Stock · 5,473 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.

F4 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F5 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000029 · wk-form4_1741131004.xml · derivative · entry 7

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,163

Underlying: Common Stock · 5,674 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F6 · derivative.exercise_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

F6 · derivative.expiration_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

SEC source: 0000874501-25-000029 · wk-form4_1741131004.xml · nonDerivative · entry 4

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,082

F2 · deemedExecutionDate: Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000029 · wk-form4_1741131004.xml · nonDerivative · entry 3

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,283

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 · deemedExecutionDate: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

SEC source: 0000874501-25-000027 · wk-form4_1741130865.xml · derivative · entry 8

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 80,766

Underlying: Common Stock · 4,529 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.

F4 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F5 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000027 · wk-form4_1741130865.xml · derivative · entry 7

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,659

Underlying: Common Stock · 5,061 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F6 · derivative.exercise_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

F6 · derivative.expiration_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

SEC source: 0000874501-25-000027 · wk-form4_1741130865.xml · nonDerivative · entry 4

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,707

SEC source: 0000874501-25-000027 · wk-form4_1741130865.xml · nonDerivative · entry 3

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,239

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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

SEC source: 0000874501-25-000025 · wk-form4_1741130708.xml · derivative · entry 8

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 12,410

Underlying: Common Stock · 2,307 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.

F4 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F5 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000025 · wk-form4_1741130708.xml · derivative · entry 7

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,642

Underlying: Common Stock · 2,607 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F6 · derivative.exercise_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

F6 · derivative.expiration_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

SEC source: 0000874501-25-000025 · wk-form4_1741130708.xml · nonDerivative · entry 4

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,318

F2 · date: Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000025 · wk-form4_1741130708.xml · nonDerivative · entry 3

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,618

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 · date: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

SEC source: 0000874501-25-000023 · wk-form4_1741130557.xml · derivative · entry 8

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 386,743

Underlying: Common Stock · 22,576 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.

F4 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F5 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of deferred share units ("DSUs") pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000023 · wk-form4_1741130557.xml · derivative · entry 7

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 95,783

Underlying: Common Stock · 23,464 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F6 · derivative.exercise_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

F6 · derivative.expiration_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

SEC source: 0000874501-25-000023 · wk-form4_1741130557.xml · nonDerivative · entry 4

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 527,416

F2 · date: Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000023 · wk-form4_1741130557.xml · nonDerivative · entry 3

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 528,304

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 · date: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

SEC source: 0000874501-25-000021 · wk-form4_1741130416.xml · derivative · entry 8

Ksenak Stephen Michael · CIK 0001527850 · Sr. MD & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,147

Underlying: Common Stock · 4,201 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.

F4 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F5 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000021 · wk-form4_1741130416.xml · derivative · entry 7

Ksenak Stephen Michael · CIK 0001527850 · Sr. MD & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 18,780

Underlying: Common Stock · 4,601 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F6 · derivative.exercise_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

F6 · derivative.expiration_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

SEC source: 0000874501-25-000021 · wk-form4_1741130416.xml · nonDerivative · entry 4

Ksenak Stephen Michael · CIK 0001527850 · Sr. MD & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,609

F2 · date: Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000021 · wk-form4_1741130416.xml · nonDerivative · entry 3

Ksenak Stephen Michael · CIK 0001527850 · Sr. MD & General Counsel

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,009

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 · date: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

SEC source: 0000874501-25-000019 · wk-form4_1741130297.xml · derivative · entry 8

Eisman Robert Bryan · CIK 0001477761 · Sr. MD & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,735

Underlying: Common Stock · 1,628 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.

F4 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F5 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000019 · wk-form4_1741130297.xml · derivative · entry 7

Eisman Robert Bryan · CIK 0001477761 · Sr. MD & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,512

Underlying: Common Stock · 1,840 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F6 · derivative.exercise_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

F6 · derivative.expiration_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

SEC source: 0000874501-25-000019 · wk-form4_1741130297.xml · nonDerivative · entry 4

Eisman Robert Bryan · CIK 0001477761 · Sr. MD & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,616

F2 · date: Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000019 · wk-form4_1741130297.xml · nonDerivative · entry 3

Eisman Robert Bryan · CIK 0001477761 · Sr. MD & CAO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,828

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 · date: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

SEC source: 0000874501-25-000017 · wk-form4_1741130085.xml · derivative · entry 6

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 21,284

Underlying: Common Stock · 5,214 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F4 · derivative.exercise_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

F4 · derivative.expiration_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

SEC source: 0000874501-25-000017 · wk-form4_1741130085.xml · nonDerivative · entry 4

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 118,275

F2 · shares: Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000017 · wk-form4_1741130085.xml · nonDerivative · entry 3

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 120,374

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 · shares: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

SEC source: 0000874501-25-000029 · wk-form4_1741131004.xml · derivative · entry 6

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 87,749

Underlying: Common Stock · 5,567 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.

F4 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F5 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000029 · wk-form4_1741131004.xml · derivative · entry 5

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,837

Underlying: Common Stock · 6,230 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F3 · derivative.exercise_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

F3 · derivative.expiration_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

SEC source: 0000874501-25-000029 · wk-form4_1741131004.xml · nonDerivative · entry 2

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,082

F2 · deemedExecutionDate: Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000029 · wk-form4_1741131004.xml · nonDerivative · entry 1

Trick David · CIK 0001480597 · Exec VP, CFO & Treasurer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 156,745

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 · deemedExecutionDate: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

SEC source: 0000874501-25-000027 · wk-form4_1741130865.xml · derivative · entry 6

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 76,237

Underlying: Common Stock · 4,915 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.

F4 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F5 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000027 · wk-form4_1741130865.xml · derivative · entry 5

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,720

Underlying: Common Stock · 5,556 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F3 · derivative.exercise_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

F3 · derivative.expiration_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

SEC source: 0000874501-25-000027 · wk-form4_1741130865.xml · nonDerivative · entry 2

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,707

F2 · date: Represents the amount of RSUs that were converted into shares of common stock and withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-25-000027 · wk-form4_1741130865.xml · nonDerivative · entry 1

Smith R Sharon · CIK 0001707461 · Exec VP & Chief Strategy Offr

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 75,348

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 · date: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

SEC source: 0000874501-25-000025 · wk-form4_1741130708.xml · derivative · entry 6

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,103

Underlying: Common Stock · 2,532 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.

F4 · derivative.exercise_price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F4 · price: Each deferred share unit ("DSU") represents a contingent right to receive one share of common stock of the Company.

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

F5 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of DSUs pursuant to the Company's Executive Stock Deferral Plan, which was designed to enable participants to elect to defer the settlement and income taxation of RSU awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-25-000025 · wk-form4_1741130708.xml · derivative · entry 5

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 13,249

Underlying: Common Stock · 2,862 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: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F1 · price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of Ambac Financial Group, Inc. (the "Company").

F3 · derivative.exercise_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

F3 · derivative.expiration_date: Represents the amount of RSUs that vested upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.