Aspen Insurance

Fitch Ratings assigns first-time ratings of ‘A+’ to Sompo Holdings, ‘AA-’ to Sompo Japan

March 19 2026

Overseas premiums are projected to account for about 50% of non-life premiums and profits in FYE26, supported by its US$3.5bn acquisition of Aspen Insurance.

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Sompo completes acquisition of Aspen Insurance

February 25 2026

Aspen will now operate under the Sompo brand, with its CEO Mark Cloutier moving to an advisory role.

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Sompo Japan's capital strength to remain robust as US$3.5bn Aspen acquisition seen to add diversification: Moody's

September 8 2025

Moody's said the insurer's solvency ratio will remain strong, with risks from equities and catastrophes mitigated by reinsurance and diversification.

AM Best puts Sompo Japan, subsidiaries' ratings under review with positive implications

September 3 2025

The review follows parent company Sompo Holdings' US$3.5bn bid to acquire Aspen Insurance, with potential benefits for Sompo Japan's global footprint and specialty (re)insurance profile.

AM Best places Aspen ratings under review with positive implications following Sompo's US$3.5bn acquisition bid

September 2 2025

Completion of the deal is targeted for the first half of 2026.

Sompo to buy Aspen for US$3.5bn

August 27 2025

The transaction, pending regulatory approvals, is expected to close in the first half of 2026.

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25 September