Ambac Financial Group rebrands as Octave Specialty Group
Reinsurance News - Nov 11, 2025
Ambac Financial Group, Inc. has rebranded as Octave Specialty Group, Inc. (Octave), a global specialty insurance firm, while its Everspan Group businesses will continue to operate under their existing brands. The company will begin trading under its new ticker symbol “NYSE: OSG” on November 20th, 20...
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