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Ambac Financial Group Rebrands as Octave Specialty Group, Inc. [Yahoo! Finance]

Ambac Financial Group, Inc.  (AMBC) 
US:NASDAQ Investor Relations: ir.ambac.com/investor-relations
PDF NEW YORK, November 10, 2025 BUSINESS WIRE )--Ambac Financial Group, Inc. (NYSE: AMBC) today announces it has rebranded to Octave Specialty Group, Inc. ("Octave") , mark [Read more]