RenaissanceRe Holdings RNR Casualty and Specialty — IBNR and ACR

Other segment segments

Similar metrics at other companies

ACGLCasualty — Total of IBNR liabilities plus expected development on reported claims

92,800,000,000%+24,800,000,000pp

ACGLOther — Reserves for Losses and Loss Adjustment Expenses

$1.52B+20.3%

TRVBond & Specialty Insurance — Claims and claim adjustment expense reserves

$5.67B+5.7%

AIZShort Duration Contracts, Non-core Operations — Incurred But Not Reported Reserves

$56.5M-34.2%

ACGLMulti-line and other specialty — Total of IBNR liabilities plus expected development on reported claims

119,500,000,000%+31,000,000,000pp

CNASpecialty — Gross IBNR Reserves

——

Questions, answered.

What is RenaissanceRe Holdings's casualty and specialty — IBNR and ACR?

RenaissanceRe Holdings (RNR) reported casualty and specialty — IBNR and ACR of $11.31B in Q4 2025.

How has RenaissanceRe Holdings's casualty and specialty — IBNR and ACR changed year-over-year?

RenaissanceRe Holdings's casualty and specialty — IBNR and ACR increased by 17.3% year-over-year, from $9.64B to $11.31B.

What does casualty and specialty — IBNR and ACR mean?

Estimated reserves for claims that have happened but have not yet been fully reported or settled.

How do you interpret casualty and specialty — IBNR and ACR?

Significant changes in these reserves may signal shifts in actuarial assumptions regarding long-term claim development or unexpected loss trends.

How does casualty and specialty — IBNR and ACR compare across companies?

Common actuarial reserve metric used across the insurance industry to assess long-term liability adequacy.