OSG

SEC source: 0000874501-24-000069 · wk-form4_1709592170.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 74,833

Underlying: Common Stock · 5,473 shares

Expires not disclosed

F6 · derivative.exercise_price: Each 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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000069 · wk-form4_1709592170.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,199

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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSUs") represents a contingent right to receive one share of the 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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000069 · wk-form4_1709592170.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,672

Underlying: Common Stock · 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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSUs") represents a contingent right to receive one share of the common stock of 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 RSU LTIP 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 RSU LTIP award.

SEC source: 0000874501-24-000069 · wk-form4_1709592170.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,382

F2 · shares: As part of the vesting and settlement of a portion of the 2023 RSU LTIP award, 201 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-24-000069 · wk-form4_1709592170.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,583

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 201 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's 2023 restrictive stock unit Long Term Incentive Plan ("2023 RSU LTIP") award.

SEC source: 0000874501-24-000068 · wk-form4_1709592087.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 60,518

Underlying: Common Stock · 4,438 shares

Expires not disclosed

F6 · derivative.exercise_price: Each 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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000068 · wk-form4_1709592087.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 20,430

Underlying: Common Stock · 4,438 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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSUs") represents a contingent right to receive one share of the 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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000068 · wk-form4_1709592087.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 24,868

Underlying: Common Stock · 163 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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSUs") represents a contingent right to receive one share of the common stock of 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 RSU LTIP 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 RSU LTIP award.

SEC source: 0000874501-24-000068 · wk-form4_1709592087.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,609

F2 · shares: As part of the vesting and settlement of a portion of the 2023 RSU LTIP award, 163 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-24-000068 · wk-form4_1709592087.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,772

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 163 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's 2023 restrictive stock unit Long Term Incentive Plan ("2023 RSU LTIP") award.

SEC source: 0000874501-24-000067 · wk-form4_1709592011.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: 64,966

Underlying: Common Stock · 4,882 shares

Expires not disclosed

F6 · derivative.exercise_price: Each 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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000067 · wk-form4_1709592011.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,268

Underlying: Common Stock · 4,882 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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSUs") represents a contingent right to receive one share of the 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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000067 · wk-form4_1709592011.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: 27,150

Underlying: Common Stock · 179 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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSUs") represents a contingent right to receive one share of the common stock of 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 RSU LTIP 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 RSU LTIP award.

SEC source: 0000874501-24-000067 · wk-form4_1709592011.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: 73,607

F2 · shares: As part of the vesting and settlement of a portion of the 2023 RSU LTIP award, 179 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-24-000067 · wk-form4_1709592011.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: 73,786

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 179 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's 2023 restrictive stock unit Long Term Incentive Plan ("2023 RSU LTIP") award.

SEC source: 0000874501-24-000065 · wk-form4_1709591773.xml · derivative · entry 3

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,155

Underlying: Common Stock · 5,215 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.

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

F1 · derivative.exercise_date: Represents the aggregate amount of restricted stock units ("RSUs") that were converted into shares of common stock of Ambac Financial Group, Inc. (the "Company") upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

F1 · derivative.expiration_date: Represents the aggregate amount of restricted stock units ("RSUs") that were converted into shares of common stock of Ambac Financial Group, Inc. (the "Company") upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

SEC source: 0000874501-24-000065 · wk-form4_1709591773.xml · nonDerivative · entry 2

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 107,327

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: 0000874501-24-000065 · wk-form4_1709591773.xml · nonDerivative · entry 1

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 109,207

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: Represents the aggregate amount of restricted stock units ("RSUs") that were converted into shares of common stock of Ambac Financial Group, Inc. (the "Company") upon settlement of a portion of the reporting person's 2023 Long Term Incentive Plan award.

SEC source: 0000874501-24-000061 · wk-form4_1709588226.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 23,936

Underlying: Common Stock · 1,775 shares

Expires not disclosed

F6 · derivative.exercise_price: Each 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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000061 · wk-form4_1709588226.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,172

Underlying: Common Stock · 1,775 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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the 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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000061 · wk-form4_1709588226.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 9,947

Underlying: Common Stock · 65 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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of the common stock of 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 RSU LTIP 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 RSU LTIP award.

SEC source: 0000874501-24-000061 · wk-form4_1709588226.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 · shares: As part of the vesting and settlement of a portion of the 2023 RSU LTIP award, 65 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-24-000061 · wk-form4_1709588226.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 67,681

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 65 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's 2023 restrictive stock unit Long Term Incentive Plan ("2023 RSU LTIP") award.

SEC source: 0000874501-24-000058 · wk-form4_1709587994.xml · derivative · entry 5

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 7,571

Underlying: Common Stock · 2,515 shares

Expires not disclosed

F5 · derivative.exercise_price: 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000058 · wk-form4_1709587994.xml · derivative · entry 4

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,077

Underlying: Common Stock · 2,515 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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock of Ambac Financial Group, Inc.

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 and Performance Stock Unit 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 and Performance Stock Unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000058 · wk-form4_1709587994.xml · derivative · entry 3

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,592

Underlying: Common Stock · 92 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.

F3 · derivative.exercise_price: Each restricted stock unit ("RSU") represents a contingent right to receive one share of common stock of Ambac Financial Group, Inc.

F4 · derivative.exercise_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon the vesting and settlement of a portion of the reporting person's 2023 RSU LTIP award.

F4 · derivative.expiration_date: Represents the amount of RSUs that were converted into shares of common stock of the Company upon the vesting and settlement of a portion of the reporting person's 2023 RSU LTIP award.

SEC source: 0000874501-24-000058 · wk-form4_1709587994.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 · shares: As part of the vesting and settlement of a portion of the 2023 RSU LTIP award, 92 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-24-000058 · wk-form4_1709587994.xml · nonDerivative · entry 1

McGinnis Daniel · CIK 0001900989 · Sr. MD & COO

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 8,410

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 92 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's 2023 restrictive stock unit Long Term Incentive Plan ("2023 RSU LTIP") award.

SEC source: 0000874501-24-000054 · wk-form4_1709327149.xml · derivative · entry 5

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 286,668

Underlying: Common Stock · 24,780 shares

Expires not disclosed

F6 · derivative.exercise_price: Each 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 and performance stock unit 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 and performance stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000054 · wk-form4_1709327149.xml · derivative · entry 4

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 127,666

Underlying: Common Stock · 24,780 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.

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

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 and performance stock unit 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 and performance stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000054 · wk-form4_1709327149.xml · nonDerivative · entry 2

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 502,416

F2 · shares: As part of the vesting and settlement of a portion of the 2022 RSU LTIP award, 975 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-24-000054 · wk-form4_1709327149.xml · nonDerivative · entry 1

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 503,391

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 975 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's 2022 restricted stock unit Long Term Incentive Plan ("2022 RSU LTIP") award.

SEC source: 0000874501-24-000053 · wk-form4_1709327097.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 30,873

Underlying: Common Stock · 220 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.

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

F5 · derivative.exercise_date: Represents the amount of RSUs that were converted into shares of common stock upon the vesting and settlement of a portion of the reporting person's 2022 RSU LTIP award.

F5 · derivative.expiration_date: Represents the amount of RSUs that were converted into shares of common stock upon the vesting and settlement of a portion of the reporting person's 2022 RSU LTIP award.

SEC source: 0000874501-24-000053 · wk-form4_1709327097.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,382

F2 · shares: As part of the vesting and settlement of a portion of the 2022 RSU LTIP award, 220 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-24-000053 · wk-form4_1709327097.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 152,602

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 220 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's 2022 restricted stock unit Long Term Incentive Plan ("2022 RSU LTIP") award.

SEC source: 0000874501-24-000052 · wk-form4_1709327052.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: 60,084

Underlying: Common Stock · 5,359 shares

Expires not disclosed

F6 · derivative.exercise_price: Each 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 and performance stock unit 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 and performance stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000052 · wk-form4_1709327052.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 27,329

Underlying: Common Stock · 5,359 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.

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

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 and performance stock unit 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 and performance stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000052 · wk-form4_1709327052.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: 32,688

Underlying: Common Stock · 196 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.

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

F4 · 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 RSU LTIP award.

F4 · 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 RSU LTIP award.

SEC source: 0000874501-24-000052 · wk-form4_1709327052.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: 73,607

F2 · shares: As part of the vesting and settlement of a portion of the 2022 RSU LTIP award, 196 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-24-000052 · wk-form4_1709327052.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: 73,803

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 196 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the vesting and settlement of a portion of the reporting person's 2022 restricted stock unit Long Term Incentive Plan ("2022 RSU LTIP") award.

SEC source: 0000874501-24-000051 · wk-form4_1709326984.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 56,080

Underlying: Common Stock · 4,872 shares

Expires not disclosed

F6 · derivative.exercise_price: Each 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 shared 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 and performance stock unit 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 shared 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 and performance stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000051 · wk-form4_1709326984.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 25,031

Underlying: Common Stock · 4,872 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.

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

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of deferred shared 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 and performance stock unit 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 shared 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 and performance stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000051 · wk-form4_1709326984.xml · derivative · entry 3

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 29,903

Underlying: Common Stock · 178 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.

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

F4 · 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 RSU Long Term Incentive Plan award.

F4 · 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 RSU Long Term Incentive Plan award.

SEC source: 0000874501-24-000051 · wk-form4_1709326984.xml · nonDerivative · entry 2

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,609

F2 · shares: As part of the vesting and settlement of a portion of the 2022 RSU LTIP award, 178 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-24-000051 · wk-form4_1709326984.xml · nonDerivative · entry 1

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 111,787

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 178 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon vesting and settlement of a portion of the reporting person's 2022 restricted stock unit Long Term Incentive Plan ("2022 RSU LTIP") award.

SEC source: 0000874501-24-000050 · wk-form4_1709326932.xml · derivative · entry 3

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 28,370

Underlying: Common Stock · 5,723 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.

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

F1 · derivative.exercise_date: Represents the aggregate amount of restricted stock units ("RSUs") that were converted into shares of common stock of Ambac Financial Group, Inc. (the "Company") upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

F1 · derivative.expiration_date: Represents the aggregate amount of restricted stock units ("RSUs") that were converted into shares of common stock of Ambac Financial Group, Inc. (the "Company") upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

SEC source: 0000874501-24-000050 · wk-form4_1709326932.xml · nonDerivative · entry 2

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 103,992

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: 0000874501-24-000050 · wk-form4_1709326932.xml · nonDerivative · entry 1

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 106,055

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: Represents the aggregate amount of restricted stock units ("RSUs") that were converted into shares of common stock of Ambac Financial Group, Inc. (the "Company") upon settlement of a portion of the reporting person's 2022 Long Term Incentive Plan award.

SEC source: 0000874501-24-000049 · wk-form4_1709326877.xml · derivative · entry 5

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 22,161

Underlying: Common Stock · 1,949 shares

Expires not disclosed

F6 · derivative.exercise_price: Each 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 shared 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 and performance stock unit 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 shared 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 and performance stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.

SEC source: 0000874501-24-000049 · wk-form4_1709326877.xml · derivative · entry 4

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

10b5-1 filing: No plan indicated

Ownership: Direct

Disclosed balance after: 10,012

Underlying: Common Stock · 1,949 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.

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

F5 · derivative.exercise_date: Represents the aggregate amount of RSUs that were converted into an equivalent number of deferred shared 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 and performance stock unit 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 shared 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 and performance stock unit awards in accordance with Section 409A of the Internal Revenue Code of 1986, as amended.