The transferred portfolio covers claims that have already occurred, AM Best reported.
RiverStone International completed a $400 million loss portfolio transfer with SiriusPoint, AM Best reported on Nov. 10, 2026.
The transfer reinsures claims that have already occurred rather than exposure to future events, so the $400 million is a book size, not a limit against a defined peril.
For allocators, the due-diligence question is how the transferred claims develop against the reserves.
Reported by the Cat bonds & reinsurance desk from AM Best News. Published . Corrections
The managing general underwriter has not disclosed capacity providers, property lines or premium targets.
Both carriers stay under review with negative implications while A-CAP Group talks to another possible capital provider.
Smaller than the January and June 2026 renewals, the expected cut comes as AM Best reports record first-half 144A cat bond issuance of $17.3 billion.
Renewal rates fell 6% across the portfolio after adjusting for claims inflation, and casualty premiums rose 8.9% to $309.1 million.
The Korean insurer adds 40.6% to its holding, with KKR funds and Korea Investment Corporation taking minority positions in the Lloyd's and Bermuda group.
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