OSG

SEC source: 0000874501-25-000025 · wk-form4_1741130708.xml · nonDerivative · entry 2

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 1

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,648

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 6

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 364,167

Underlying: Common Stock · 24,610 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 5

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 119,247

Underlying: Common Stock · 25,762 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: 0000874501-25-000023 · wk-form4_1741130557.xml · nonDerivative · entry 2

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 1

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 528,568

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 6

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 70,946

Underlying: Common Stock · 4,469 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 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,381

Underlying: Common Stock · 5,051 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: 0000874501-25-000021 · wk-form4_1741130416.xml · nonDerivative · entry 2

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 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,191

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 6

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,107

Underlying: Common Stock · 1,787 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 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,352

Underlying: Common Stock · 2,020 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: 0000874501-25-000019 · wk-form4_1741130297.xml · nonDerivative · entry 2

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 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,849

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 5

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,498

Underlying: Common Stock · 5,725 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 aggregate amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

F3 · derivative.expiration_date: Represents the aggregate amount of RSUs that were converted into shares of common stock of the Company upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

SEC source: 0000874501-25-000017 · wk-form4_1741130085.xml · nonDerivative · entry 2

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,160

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 1

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 117,530

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: 0000874501-25-000012 · wk-form4_1735938488.xml · derivative · entry 1

Stein Jeffrey Scott · CIK 0001559518 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,026

Underlying: Common Stock · 3,938 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-25-000010 · wk-form4_1735938411.xml · derivative · entry 1

PRICE MICHAEL D · CIK 0001241508 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,398

Underlying: Common Stock · 3,938 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-25-000006 · wk-form4_1735938247.xml · derivative · entry 1

LAMMTENNANT JOAN M · CIK 0001208239 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 94,209

Underlying: Common Stock · 3,938 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-25-000008 · wk-form4_1735938326.xml · derivative · entry 1

Matus Kristi Ann · CIK 0001543504 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 26,398

Underlying: Common Stock · 3,938 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-25-000004 · wk-form4_1735938166.xml · derivative · entry 1

IGLESIAS LISA G · CIK 0001103172 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 54,996

Underlying: Common Stock · 3,938 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-25-000002 · wk-form4_1735938071.xml · derivative · entry 1

HAFT IAN DAVID · CIK 0001573787 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 119,140

Underlying: Common Stock · 3,938 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSU's granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSU's granted on January 1, 2025 shall vest one year later on January 1, 2026. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-24-000232 · wk-form4_1727818287.xml · derivative · entry 1

Stein Jeffrey Scott · CIK 0001559518 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 151,088

Underlying: Common Stock · 4,497 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-24-000230 · wk-form4_1727818203.xml · derivative · entry 1

PRICE MICHAEL D · CIK 0001241508 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,460

Underlying: Common Stock · 4,497 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-24-000228 · wk-form4_1727818133.xml · derivative · entry 1

Matus Kristi Ann · CIK 0001543504 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,460

Underlying: Common Stock · 4,497 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-24-000226 · wk-form4_1727818041.xml · derivative · entry 1

LAMMTENNANT JOAN M · CIK 0001208239 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 90,271

Underlying: Common Stock · 4,497 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-24-000222 · wk-form4_1727817859.xml · derivative · entry 1

HAFT IAN DAVID · CIK 0001573787 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 115,202

Underlying: Common Stock · 4,497 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSU's granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSU's granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-24-000224 · wk-form4_1727817953.xml · derivative · entry 1

IGLESIAS LISA G · CIK 0001103172 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 51,058

Underlying: Common Stock · 4,497 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

F2 · derivative.expiration_date: RSUs granted on October 1, 2024 shall vest one year later on October 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company or upon a "change of control" of the Company.

SEC source: 0000874501-24-000220 · wk-form4_1727467221.xml · nonDerivative · entry 2

Matus Kristi Ann · CIK 0001543504 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,000

SEC source: 0000874501-24-000220 · wk-form4_1727467221.xml · nonDerivative · entry 1

Matus Kristi Ann · CIK 0001543504 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 2,700

SEC source: 0000874501-24-000193 · wk-form4_1723149845.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: 74,707

SEC source: 0000874501-24-000191 · wk-form4_1723149653.xml · nonDerivative · entry 1

Stein Jeffrey Scott · CIK 0001559518 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 35,000

SEC source: 0000874501-24-000189 · wk-form4_1723149561.xml · nonDerivative · entry 3

PRICE MICHAEL D · CIK 0001241508 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 89,312

SEC source: 0000874501-24-000189 · wk-form4_1723149561.xml · nonDerivative · entry 2

PRICE MICHAEL D · CIK 0001241508 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,735

SEC source: 0000874501-24-000189 · wk-form4_1723149561.xml · nonDerivative · entry 1

PRICE MICHAEL D · CIK 0001241508 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 4,471

SEC source: 0000874501-24-000187 · wk-form4_1723149471.xml · nonDerivative · entry 5

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 527,416

SEC source: 0000874501-24-000187 · wk-form4_1723149471.xml · nonDerivative · entry 4

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 526,716

SEC source: 0000874501-24-000187 · wk-form4_1723149471.xml · nonDerivative · entry 3

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 526,669

SEC source: 0000874501-24-000187 · wk-form4_1723149471.xml · nonDerivative · entry 2

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 515,716

SEC source: 0000874501-24-000187 · wk-form4_1723149471.xml · nonDerivative · entry 1

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 514,689

SEC source: 0000874501-24-000185 · wk-form4_1723149370.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

SEC source: 0000874501-24-000185 · wk-form4_1723149370.xml · nonDerivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 155,882

SEC source: 0000874501-24-000185 · wk-form4_1723149370.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 154,382

SEC source: 0000874501-24-000185 · wk-form4_1723149370.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 154,182

SEC source: 0000874501-24-000183 · wk-form4_1723149250.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 116,609

SEC source: 0000874501-24-000155 · wk-form4_1719864087.xml · derivative · entry 1

PRICE MICHAEL D · CIK 0001241508 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,963

Underlying: Common Stock · 3,699 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSU's granted on July 1, 2024 shall vest one year later on July 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company.

F2 · derivative.expiration_date: RSU's granted on July 1, 2024 shall vest one year later on July 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company.

SEC source: 0000874501-24-000157 · wk-form4_1719864171.xml · derivative · entry 1

Stein Jeffrey Scott · CIK 0001559518 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 146,591

Underlying: Common Stock · 3,699 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSU's granted on July 1, 2024 shall vest one year later on July 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company.

F2 · derivative.expiration_date: RSU's granted on July 1, 2024 shall vest one year later on July 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company.

SEC source: 0000874501-24-000153 · wk-form4_1719863947.xml · derivative · entry 1

Matus Kristi Ann · CIK 0001543504 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 17,963

Underlying: Common Stock · 3,699 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSU's granted on July 1, 2024 shall vest one year later on July 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company.

F2 · derivative.expiration_date: RSU's granted on July 1, 2024 shall vest one year later on July 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company.

SEC source: 0000874501-24-000151 · wk-form4_1719863866.xml · derivative · entry 1

LAMMTENNANT JOAN M · CIK 0001208239 · Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 85,774

Underlying: Common Stock · 3,699 shares

Expires not disclosed

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").

F2 · derivative.exercise_date: RSU's granted on July 1, 2024 shall vest one year later on July 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company.

F2 · derivative.expiration_date: RSU's granted on July 1, 2024 shall vest one year later on July 1, 2025. RSUs that have become vested shall settle and convert into shares of common stock upon the date that the reporting person resigns from, or otherwise ceases to be a member of, the Board of Directors of the Company.