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White Mountains Insurance Group WTM Marine & Energy — Cumulative number of reported claims
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Where this comes from
Reported directly by White Mountains Insurance Group in its filing.
Tagged under the XBRL concept us-gaap:ShortdurationInsuranceContractsNumberOfReportedClaims.
The source filing: White Mountains Insurance Group’s 10-K, filed February 27, 2026.
- Filed
- Feb 27, 2026, 9:21 AM EST
- Fiscal year
- FY2025
- Accession
- 0001628280-26-012603
| Marine & Energy / $ in Millions / Accident Year | Marine & Energy / $ in Millions / Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2016 | Marine & Energy / $ in Millions / Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2017 | Marine & Energy / Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2018 | Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2019 | Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2020 | Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2021 | Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2022 | Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2023 | Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2024 | Incurred Loss and LAE, Net of Reinsurance / For the Years Ended December 31, 2025 | As of December 31, 2025 / Total IBNR plus expected development on reported claims | As of December 31, 2025 / Cumulative number of reported claims |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Unaudited | ||||||||||||
| 2016 | $23.8 | $20.0 | $16.0 | $14.9 | $14.6 | $15.2 | $14.5 | $14.0 | $13.7 | $13.8 | — | 3,776 |
| 2017 | 26.5 | 19.7 | 17.9 | 17.3 | 16.9 | 16.0 | 16.3 | 16.4 | 16.4 | .2 | 4,141 | |
| 2018 | 26.2 | 20.6 | 18.1 | 18.5 | 18.0 | 18.4 | 17.4 | 17.0 | .2 | 3,245 | ||
| 2019 | 24.2 | 22.0 | 22.1 | 21.9 | 22.3 | 21.6 | 21.8 | .4 | 2,413 | |||
| 2020 | 30.4 | 27.7 | 29.1 | 27.9 | 27.6 | 27.6 | .8 | 1,594 | ||||
| 2021 | 87.7 | 70.5 | 68.4 | 75.6 | 79.8 | 3.8 | 1,530 | |||||
| 2022 | 150.8 | 154.9 | 157.5 | 218.6 | 56.8 | 2,083 |
Item 16. Form 10-K Summary.
FAQ
- What is White Mountains Insurance Group's marine & energy — cumulative number of reported claims?
- White Mountains Insurance Group (WTM) reported marine & energy — cumulative number of reported claims of 414,100% in Q4 2025.
- What does marine & energy — cumulative number of reported claims mean?
- This metric tracks the total count of claims reported to the Marine and Energy segment since the inception of the relevant underwriting period. It provides insight into the volume of activity and the frequency of loss events within this specific business line.
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