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