Chubb CB Global Reinsurance — Net Prior Period Development

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PRA

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Questions, answered.

What is Chubb's global reinsurance — net prior period development?

Chubb (CB) reported global reinsurance — net prior period development of $0 in Q1 2026.

How has Chubb's global reinsurance — net prior period development changed year-over-year?

Chubb's global reinsurance — net prior period development increased by 100.0% year-over-year, from -$5M to $0.

What is the long-term trend for Chubb's global reinsurance — net prior period development?

Over 4 years (2021 to 2025), Chubb's global reinsurance — net prior period development has grown at a 7.5% compound annual growth rate (CAGR), from $21M to -$28M.

What does global reinsurance — net prior period development mean?

Represents the total net change in the liability for unpaid claims and claim adjustment expenses for events occurring in prior years, specifically for the Global Reinsurance segment. It is a critical measure of the accuracy of historical underwriting and reserving assumptions.