SUSQUEHANNA SECURITIES, LLC - 30 Sep 2025 SCHEDULE 13G/A Report for Ambac Financial Group, Inc. Common Stock, $0.01 par value per share (AMBC)

Filing Manager: SUSQUEHANNA SECURITIES, LLC
Reporting Manager: G1 Execution Services, LLC
Security: Ambac Financial Group, Inc. Common Stock, $0.01 par value per share
Symbol: AMBC
Shares outstanding: 46,241,273 shares
Disclosed Ownership: 1,017,308 shares
Ownership: 2.2%
Form type: SCHEDULE 13G/A
Filing time: 13 Nov 2025, 17:37:24 UTC
Date of event: 30 Sep 2025
Previous filing: 14 Aug 2025
SEC: View on sec.gov

Reporting Managers (3)

Name	Ownership	Shares Owned	sole voting power	shared voting power	Signature	Title
G1 Execution Services, LLC	2.2%	1,017,308	5,098	1,017,308	/s/ Brian Sopinsky	Brian Sopinsky, Secretary
SIG Brokerage, LP	2.2%	1,017,308	2,500	1,017,308	/s/ Brian Sopinsky	Brian Sopinsky, Assistant Secretary
Susquehanna Securities, LLC	2.2%	1,017,308	1,009,710	1,017,308	/s/ Brian Sopinsky	Brian Sopinsky, Secretary