DIMENSIONAL FUND ADVISORS LP - 30 Sep 2025 SCHEDULE 13G/A Report for Ambac Financial Group Inc Common Stock (AMBC)

Filing Manager: DIMENSIONAL FUND ADVISORS LP
Reporting Manager: Dimensional Fund Advisors LP
Security: Ambac Financial Group Inc Common Stock
Symbol: AMBC
Shares outstanding: 46.5M shares
Disclosed Ownership: 2.14M shares
Ownership: 4.6%
Form type: SCHEDULE 13G/A
Filing time: 09 Oct 2025, 13:48:12 UTC
Date of event: 30 Sep 2025
SEC: View on sec.gov

Reporting Managers (1)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title	CIK
Dimensional Fund Advisors LP	4.6%	2.14M	2.09M	0	Selwyn Notelovitz	Global Chief Compliance Officer