BlackRock, Inc. Reduces Stake in AMBAC Financial Group Inc.

BlackRock, Inc. has filed a Schedule 13G/A amendment with the SEC, disclosing a reduction in its stake in AMBAC Financial Group Inc. As of September 30, 2025, BlackRock owns 3,535,664 shares of AMBAC common stock, representing a 7.6% ownership stake. This marks a decrease of 1,052,390 shares (22.94%) from its previous holdings. The filing indicates that BlackRock has sole voting power over 3,456,958 shares and sole dispositive power over all 3,535,664 shares. The filing also notes that various persons have the right to receive dividends or proceeds from the sale of the shares, but no single person's interest exceeds 5% of the total outstanding shares. The amendment was signed by Spencer Fleming, Managing Director of BlackRock, on October 17, 2025.