Sompo Holdings Completes $3.5 Billion Acquisition of Aspen Insurance
ByAinvest
Tuesday, Feb 24, 2026 1:20 pm ET1min read
AHL--
Sompo Holdings has completed its $3.5 billion acquisition of Aspen Insurance Holdings, taking the insurer private. Aspen will become a wholly owned subsidiary of Endurance Specialty Insurance, a unit of Sompo International Holdings. Aspen's former executive chairman, Mark Cloutier, will act in an advisory role to Sompo. Sompo Group CEO Mikio Okumura and Sompo P&C CEO James Shea welcome the Aspen team to Sompo, citing the deal as a milestone in their strategy for profitable growth.

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