10-KThe Record
WHITE MOUNTAINS INSURANCE GROUP LTD files 10-K
Filed Feb 27, 2026 · 4mo ago · Accession 0001628280-26-012603
Plain English
Annual report — full-year financials, business overview, and risk factors.
Read the source below for the full document.
Filing details
- Ticker
- WTM
- CIK
- 776867
- Form type
- 10-K
- Filing date
- Feb 27, 2026
- Report date
- Dec 31, 2025
- Document
- wtm-20251231.htm
- Size
- 34.8 MB