Claude LeBlanc - 03 Oct 2025 Form 4/A - Amendment Insider Report for AMBAC FINANCIAL GROUP INC (AMBC)

Reporting relationship: Chief Executive Officer, Director
Issuer ticker: AMBC
Reported as of: 03 Oct 2025
Net transaction value: $0
SEC form: 4/A - Amendment
Accepted by SEC: 03 Oct 2025, 17:02:27 UTC
Original report date: 03 Oct 2025
Prior SEC filing: 01 Oct 2025
Next SEC filing: 05 Jan 2026
Source filing: View source filing
Reporting owner signature: William White, attorney-in-fact

Key filing fact

Claude LeBlanc filed Form 4/A - Amendment for AMBAC FINANCIAL GROUP INC (AMBC) on 03 Oct 2025.

Key facts

This page summarizes Claude LeBlanc's Form 4/A - Amendment filing for AMBAC FINANCIAL GROUP INC (AMBC).
3 reported transactions and 3 derivative rows are listed below.
Accepted by SEC: 03 Oct 2025, 17:02.

Change

Previous filing in this sequence was filed on 01 Oct 2025.
Current net transaction value: $0.

Research use

This tells you what this filing adds before you inspect full transaction and derivative tables.
You can trace every row back to the original SEC filing document.

Evidence

Filed on Form 4

Ownership activity is grounded in SEC Form 4/A - Amendment disclosures.

View source filing

Reporting Owners (1)

CIK 0001380820 Primary reporting owner

LeBlanc Claude

Relationship: Chief Executive Officer, Director
Address: AMBAC FINANCIAL GROUP, INC., ONE WORLD TRADE CENTER, 41ST FLOOR, NEW YORK
Signature: William White, attorney-in-fact
Signature date: 03 Oct 2025

Reported derivative securities

Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.

AMBC transaction Derivative

Performance Stock Option

Award

Transaction value: $0
Shares: +500,000
Change %
Price: $0.000000
Shares after: 500,000
Date: 03 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 500,000
Exercise price: $8.97
Footnotes: F1

AMBC transaction Derivative

Restricted Stock Units

Award

Transaction value: $0
Shares: +45,650
Change %: +19%
Price: $0.000000
Shares after: 280,801
Date: 03 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 45,650
Exercise price
Footnotes: F2, F3

AMBC transaction Derivative

Restricted Stock Units

Award

Transaction value: $0
Shares: +232,816
Change %: +83%
Price: $0.000000
Shares after: 513,617
Date: 03 Oct 2025
Ownership: Direct
Underlying class: Common Stock
Underlying amount: 232,816
Exercise price
Footnotes: F2, F4

^* marks a reported price that did not pass the local price check.

Additional SEC filing notes

Filing notes and footnotes

Explanation of responses 4 footnotes

Footnote F1

The Performance Stock Option shall be eligible to vest beginning one year after the grant date based on Ambac Financial Group, Inc.'s (the "Company") achievement of the certain price hurdles related to the shares of Common Stock, during the five (5) year period following the grant date as follows: (i) 40 % shall vest on the date on which the sustained stock price first exceeds $18.00 per share; (ii) 20% shall vest on the date on which the sustained stock price first exceeds $21.50 per share; (iii) 20% shall vest on the date on which the sustained stock price first exceeds $25.00 per share; and (iv) 20% shall vest on the date on which the sustained stock price first exceeds $30.00 per share.

Footnote F2

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

Footnote F3

On October 3, 2025 the reporting person received a grant of 45,650 RSUs to replace a portion of the July 2025 Long Term Incentive Plan award previously determined to be void ab initio. These RSUs will vest in three equal annual installments commencing October 3, 2026, July 9, 2027, and July 9, 2028.

Footnote F4

On October 3, 2025 the reporting person received a special RSU grant that will vest and become non-forfeitable after one year (subject to limited exceptions), but will not settle until the earlier of the fifth (5) year anniversary of the grant date or the reporting person's termination date, provided such termination occurs after the one year vesting date.