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M&A / Property

Sompo Completes Acquisition of Aspen

By The Northwire Desk — AI Analysis Feb 24, 2026 · 08:29 8630
8630 · Price

Executive Summary

  • Sompo International Holdings’ wholly owned subsidiary completed the acquisition of 100 % of Aspen Insurance Holdings Limited’s Class A ordinary shares, bringing Aspen under the Sompo Group umbrella.
  • Following closing, Aspen’s Class A shares were delisted from the NYSE; its preference shares remain listed.
  • The transaction expands Sompo’s global property‑and‑casualty platform, adding reinsurance and insurance portfolios and strengthening its presence in the United Kingdom.

Key Details

  • Acquisition Structure: Purchase of 100 % of issued Class A ordinary shares of Aspen Insurance Holdings Limited.
  • Closing Outcome: Aspen’s Class A ordinary shares (ticker: AHL) ceased trading on the NYSE; preference shares continue to trade on the NYSE.
  • Post‑Transaction Integration: Aspen will operate under the Sompo brand and become part of the Sompo Group portfolio.
  • Strategic Rationale: Enhances Sompi’s globally diversified P&C platform, adds substantial UK market presence, and provides additional reinsurance/insurance capacity.
  • Leadership Comments:
  • Mikio Okumura (Sompo Group CEO) highlighted the deal as a milestone for profitable growth and strategic capital deployment.
  • James Shea (CEO, Sompo P&C) emphasized the expansion of the global footprint and commitment to customers, people, and shareholders.
  • Advisors:
  • Financial Advisor to Sompo – Morgan Stanley & Co., LLC (exclusive).
  • Legal Advisor to Sompo – Skadden, Arps, Slate, Meagher & Flom LLP.
  • Integration Consultant – Oxbow Partners.
  • Strategic Communications – Kekst CNC.
  • Lead Financial Advisor to Aspen – Goldman Sachs & Co., LLC.
  • Additional Advisors to Aspen – Insurance Advisory Partners LLC (financial), Sidley Austin LLP (legal).
  • Future Actions: Sompo may seek to redeem, repurchase, or otherwise manage the outstanding preference shares of Aspen; Mark Cloutier will serve in an advisory role to Sompo post‑closing.

Notable Quotes

“Today marks an important milestone in our strategy to continue Sompo’s plans for profitable growth… I am pleased to welcome the Aspen team to Sompo.” – Mikio Okumura, Sompo Group CEO

“This transaction continues our commitment to invest in and grow our global P&C footprint… We look forward to welcoming our new colleagues and continuing to build our global portfolio through investments in people and technology.” – James Shea, CEO, Sompo P&C

Read the original news release →

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