OSG

SEC source: 0000874501-19-000014 · wf-form4_155130305337908.xml · nonDerivative · entry 2

REILLY MICHAEL FRANCIS · CIK 0001562285 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,981

F2 · shares: As part of this vesting and settlement, 3,730 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-19-000014 · wf-form4_155130305337908.xml · nonDerivative · entry 1

REILLY MICHAEL FRANCIS · CIK 0001562285 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,711

F1 · shares: The reporting person acquired 10,553 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the simultaneous vesting and settlement of the reporting person's 2016 Long Term Incentive Plan award, which had a three year performance period and vested on February 25, 2019.

SEC source: 0000874501-19-000012 · wf-form4_155130283208219.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,493

F2 · shares: As part of this vesting and settlement, 5,120 shares of common stock were withheld by the Company to satisfy certain tax withholding obligations.

SEC source: 0000874501-19-000012 · wf-form4_155130283208219.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,613

F1 · shares: The reporting person acquired 15,076 shares of common stock of Ambac Financial Group, Inc. (the "Company") upon the simultaneous vesting and settlement of the reporting person's 2016 Long Term Incentive Plan award, which had a three year performance period and vested on February 25, 2019.

SEC source: 0000874501-19-000004 · wf-form4_155087252721257.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,323

Underlying: Common Stock · 4,296 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 RSU represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: On February 21, 2019, there were 4,296 restricted stock units that settled, and were converted into shares of common stock of the Company.

F2 · derivative.expiration_date: On February 21, 2019, there were 4,296 restricted stock units that settled, and were converted into shares of common stock of the Company.

SEC source: 0000874501-19-000004 · wf-form4_155087252721257.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 33,537

SEC source: 0000874501-19-000004 · wf-form4_155087252721257.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 35,021

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

SEC source: 0000874501-19-000003 · wf-form4_155087243718247.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 17,187

Underlying: Common Stock · 4,296 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 RSU represents a contingent right to receive one share of the Company's common stock.

F2 · derivative.exercise_date: On February 21, 2019, there were 4,296 restricted stock units that settled, and were converted into shares of common stock of the Company.

F2 · derivative.expiration_date: On February 21, 2019, there were 4,296 restricted stock units that settled, and were converted into shares of common stock of the Company.

SEC source: 0000874501-19-000003 · wf-form4_155087243718247.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 18,691

SEC source: 0000874501-19-000003 · wf-form4_155087243718247.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 20,243

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

SEC source: 0000874501-18-000080 · wf-form4_152667445336931.xml · derivative · entry 4

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,132

Underlying: Common Stock · 332 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F1 · derivative.exercise_date: On May 16, 2018, the Grant Date, 332 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

F1 · derivative.expiration_date: On May 16, 2018, the Grant Date, 332 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000080 · wf-form4_152667445336931.xml · derivative · entry 3

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,464

Underlying: Common Stock · 7,837 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_date: On May 16, 2018, there were 7,837 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

F3 · derivative.expiration_date: On May 16, 2018, there were 7,837 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

SEC source: 0000874501-18-000080 · wf-form4_152667445336931.xml · nonDerivative · entry 2

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,066

F1 · shares: On May 16, 2018, the Grant Date, 332 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000080 · wf-form4_152667445336931.xml · nonDerivative · entry 1

BARRANCO DAVID · CIK 0001562313 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,398

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: On May 16, 2018, the Grant Date, 332 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000079 · wf-form4_152667438319627.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 25,619

Underlying: Common Stock · 575 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F1 · derivative.exercise_date: On May 16, 2018, the Grant Date, 575 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

F1 · derivative.expiration_date: On May 16, 2018, the Grant Date, 575 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000079 · wf-form4_152667438319627.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 26,194

Underlying: Common Stock · 13,062 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_date: On May 16, 2018, there were 13,062 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

F3 · derivative.expiration_date: On May 16, 2018, there were 13,062 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

SEC source: 0000874501-18-000079 · wf-form4_152667438319627.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 30,725

F1 · shares: On May 16, 2018, the Grant Date, 575 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000079 · wf-form4_152667438319627.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 31,300

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: On May 16, 2018, the Grant Date, 575 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000078 · wf-form4_152667431554495.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,527

Underlying: Common Stock · 221 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F1 · derivative.exercise_date: On May 16, 2018, the Grant Date, 221 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

F1 · derivative.expiration_date: On May 16, 2018, the Grant Date, 221 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000078 · wf-form4_152667431554495.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,748

Underlying: Common Stock · 5,225 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_date: On May 16, 2018, there were 5,225 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

F3 · derivative.expiration_date: On May 16, 2018, there were 5,225 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

SEC source: 0000874501-18-000078 · wf-form4_152667431554495.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,013

F1 · shares: On May 16, 2018, the Grant Date, 221 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000078 · wf-form4_152667431554495.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 10,234

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: On May 16, 2018, the Grant Date, 221 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000077 · wf-form4_152667423895768.xml · derivative · entry 4

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,483

Underlying: Common Stock · 443 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F1 · derivative.exercise_date: On May 16, 2018, the Grant Date, 443 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

F1 · derivative.expiration_date: On May 16, 2018, the Grant Date, 443 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000077 · wf-form4_152667423895768.xml · derivative · entry 3

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 21,926

Underlying: Common Stock · 10,450 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_date: On May 16, 2018, there were 10,450 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

F3 · derivative.expiration_date: On May 16, 2018, there were 10,450 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

SEC source: 0000874501-18-000077 · wf-form4_152667423895768.xml · nonDerivative · entry 2

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 15,947

F1 · shares: On May 16, 2018, the Grant Date, 443 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000077 · wf-form4_152667423895768.xml · nonDerivative · entry 1

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 16,390

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: On May 16, 2018, the Grant Date, 443 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000076 · wf-form4_152667411220421.xml · derivative · entry 4

Smith R Sharon · CIK 0001707461 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,132

Underlying: Common Stock · 332 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F1 · derivative.exercise_date: On May 16, 2018, the Grant Date, 332 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

F1 · derivative.expiration_date: On May 16, 2018, the Grant Date, 332 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000076 · wf-form4_152667411220421.xml · derivative · entry 3

Smith R Sharon · CIK 0001707461 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 14,464

Underlying: Common Stock · 7,837 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_date: On May 16, 2018, there were 7,837 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

F3 · derivative.expiration_date: On May 16, 2018, there were 7,837 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

SEC source: 0000874501-18-000076 · wf-form4_152667411220421.xml · nonDerivative · entry 2

Smith R Sharon · CIK 0001707461 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 0

F1 · shares: On May 16, 2018, the Grant Date, 332 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000076 · wf-form4_152667411220421.xml · nonDerivative · entry 1

Smith R Sharon · CIK 0001707461 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 332

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: On May 16, 2018, the Grant Date, 332 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000074 · wf-form4_152667396858475.xml · derivative · entry 4

REILLY MICHAEL FRANCIS · CIK 0001562285 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,079

Underlying: Common Stock · 221 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F1 · derivative.exercise_date: On May 16, 2018, the Grant Date, 221 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

F1 · derivative.expiration_date: On May 16, 2018, the Grant Date, 221 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000074 · wf-form4_152667396858475.xml · derivative · entry 3

REILLY MICHAEL FRANCIS · CIK 0001562285 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 11,300

Underlying: Common Stock · 5,225 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_date: On May 16, 2018, there were 5,225 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

F3 · derivative.expiration_date: On May 16, 2018, there were 5,225 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

SEC source: 0000874501-18-000074 · wf-form4_152667396858475.xml · nonDerivative · entry 2

REILLY MICHAEL FRANCIS · CIK 0001562285 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,158

F1 · shares: On May 16, 2018, the Grant Date, 221 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000074 · wf-form4_152667396858475.xml · nonDerivative · entry 1

REILLY MICHAEL FRANCIS · CIK 0001562285 · Senior Managing Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 7,379

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: On May 16, 2018, the Grant Date, 221 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000075 · wf-form4_152667404506180.xml · derivative · entry 4

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 112,177

Underlying: Common Stock · 2,639 shares

Expires not disclosed

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

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the common stock of the Company.

F1 · derivative.exercise_date: On May 16, 2018, the Grant Date, 2,639 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

F1 · derivative.expiration_date: On May 16, 2018, the Grant Date, 2,639 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000075 · wf-form4_152667404506180.xml · derivative · entry 3

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 114,816

Underlying: Common Stock · 55,173 shares

Expires not disclosed

F2 · derivative.exercise_price: Each RSU represents a contingent right to receive one share of the common stock of the Company.

F3 · derivative.exercise_date: On May 16, 2018, there were 55,173 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

F3 · derivative.expiration_date: On May 16, 2018, there were 55,173 RSUs granted in recognition of the reporting person's efforts to bring about the successful exit of the Segregated Account of Ambac Assurance Corporation from Rehabilitation. The RSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2019, and the remaining 50% of the RSUs shall settle and convert into shares of common stock on May 16, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason (other than termination for cause), all of the RSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested RSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

SEC source: 0000874501-18-000075 · wf-form4_152667404506180.xml · nonDerivative · entry 2

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,500

F1 · shares: On May 16, 2018, the Grant Date, 2,639 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000075 · wf-form4_152667404506180.xml · nonDerivative · entry 1

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 50,139

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: On May 16, 2018, the Grant Date, 2,639 restricted stock units ("RSUs") vested, and were settled and converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000055 · wf-form4_152521024570547.xml · derivative · entry 1

HAFT IAN DAVID · CIK 0001573787 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,884

Underlying: Common Stock · 11,744 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 April 30, 2018 shall vest one year later on April 30, 2019. 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 April 30, 2018 shall vest one year later on April 30, 2019. 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: 0000874501-18-000053 · wf-form4_152521006773757.xml · derivative · entry 1

PRIEUR C JAMES · CIK 0001244204 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 43,494

Underlying: Common Stock · 11,744 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 April 30, 2018 shall vest one year later on April 30, 2019. 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 April 30, 2018 shall vest one year later on April 30, 2019. 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: 0000874501-18-000054 · wf-form4_152521012899161.xml · derivative · entry 1

LAMMTENNANT JOAN M · CIK 0001208239 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 13,953

Underlying: Common Stock · 11,744 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 April 30, 2018 shall vest one year later on April 30, 2019. 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 April 30, 2018 shall vest one year later on April 30, 2019. 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: 0000874501-18-000052 · wf-form4_152520989217600.xml · derivative · entry 1

Greene Alexander David · CIK 0001609373 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 49,128

Underlying: Common Stock · 11,744 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 April 30, 2018 shall vest one year later on April 30, 2019. 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 April 30, 2018 shall vest one year later on April 30, 2019. 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: 0000874501-18-000051 · wf-form4_152520982192112.xml · derivative · entry 1

Herzog David L · CIK 0001331793 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 38,884

Underlying: Common Stock · 11,744 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 April 30, 2018 shall vest one year later on April 30, 2019. 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 April 30, 2018 shall vest one year later on April 30, 2019. 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: 0000874501-18-000050 · wf-form4_152520973250167.xml · derivative · entry 1

Stein Jeffrey Scott · CIK 0001559518 · Director

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 74,770

Underlying: Common Stock · 11,744 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 April 30, 2018 shall vest one year later on April 30, 2019. 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 April 30, 2018 shall vest one year later on April 30, 2019. 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: 0000874501-18-000045 · wf-form4_152037721383638.xml · derivative · entry 5

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 22,856

Underlying: Common Stock · 1,068 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 DSU represents a contingent right to receive one share of the Company's common stock.

F1 · derivative.exercise_date: On March 2, 2018, 1,068 deferred share units ("DSUs") vested and were converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

F1 · derivative.expiration_date: On March 2, 2018, 1,068 deferred share units ("DSUs") vested and were converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000045 · wf-form4_152037721383638.xml · derivative · entry 4

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 23,924

Underlying: Common Stock · 23,924 shares

Expires not disclosed

F4 · derivative.exercise_price: Each DSU represents a contingent right to receive one share of the Company's common stock.

F5 · derivative.exercise_date: On March 2, 2018, there were 23,924 DSUs granted as part of the 2018 Short Term Incentive Plan. The DSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2019, and the remaining 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason, all of the DSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested DSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

F5 · derivative.expiration_date: On March 2, 2018, there were 23,924 DSUs granted as part of the 2018 Short Term Incentive Plan. The DSUs shall vest immediately and shall settle and convert into shares of common stock as follows: 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2019, and the remaining 50% of the DSUs shall settle and convert into shares of common stock on March 2, 2020; provided however, that if the reporting person's employment with the Company is terminated for any reason, all of the DSUs will settle and convert into shares of common stock immediately. Notwithstanding the foregoing, a number of vested DSUs sufficient to satisfy certain tax withholding obligations imposed upon the Company may be converted into shares of common stock and withheld by the Company to satisfy such tax withholding obligations.

SEC source: 0000874501-18-000045 · wf-form4_152037721383638.xml · derivative · entry 3

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 59,643

Underlying: Common Stock · 59,643 shares

Expires not disclosed

F2 · derivative.exercise_price: Each restricted stock unit ("RSUs") represents a contingent right to receive one share of common stock of the Company.

F3 · derivative.exercise_date: On March 2, 2018 the reporting person received a grant of 59,643 RSUs as part of their 2018 Long Term Incentive Plan award. The RSUs will vest in three equal annual installments on each of March 2, 2019, March 2, 2020, and March 2, 2021.

F3 · derivative.expiration_date: On March 2, 2018 the reporting person received a grant of 59,643 RSUs as part of their 2018 Long Term Incentive Plan award. The RSUs will vest in three equal annual installments on each of March 2, 2019, March 2, 2020, and March 2, 2021.

SEC source: 0000874501-18-000045 · wf-form4_152037721383638.xml · nonDerivative · entry 2

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 47,500

F1 · shares: On March 2, 2018, 1,068 deferred share units ("DSUs") vested and were converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000045 · wf-form4_152037721383638.xml · nonDerivative · entry 1

LeBlanc Claude · CIK 0001380820 · Director · Chief Executive Officer

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 48,568

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 · shares: On March 2, 2018, 1,068 deferred share units ("DSUs") vested and were converted into shares of common stock and withheld by Ambac Financial Group, Inc. (the "Company") to satisfy certain tax withholding obligations.

SEC source: 0000874501-18-000044 · wf-form4_152037716321279.xml · derivative · entry 5

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

10b5-1 filing: Not disclosed

Ownership: Direct

Disclosed balance after: 5,844

Underlying: Common Stock · 1,384 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.

F5 · derivative.exercise_price: Each DSU represents a contingent right to receive one share of the Company's common stock.

F1 · derivative.exercise_date: Represents the aggregate amount of deferred stock units ("DSUs") 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 2016 and 2017 Short Term Incentive award.

F1 · derivative.expiration_date: Represents the aggregate amount of deferred stock units ("DSUs") 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 2016 and 2017 Short Term Incentive award.