# White Mountains Insurance Group Ltd: Form 8-K, filed Jan 7, 2026

- Company: [White Mountains Insurance Group Ltd](/companies/wtm.md) (CIK 776867)
- Form: 8-K
- Filed: 2026-01-07
- Accepted by EDGAR: Jan 7, 2026, 08:02 ET
- Period: 2026-01-07
- Accession: 0001628280-26-001102
- Inline XBRL: yes
- Main document: https://www.sec.gov/Archives/edgar/data/776867/000162828026001102/wtm-20260107.htm
- All documents and exhibits: https://www.sec.gov/Archives/edgar/data/776867/000162828026001102/

## Items reported

- Item 8.01: Other events

## Sections

Sections are extracted only from 10-K and 10-Q reports. Read this filing’s documents on sec.gov. https://www.sec.gov/Archives/edgar/data/776867/000162828026001102/wtm-20260107.htm

Filed Jan 7, 2026.
Source: SEC EDGAR, the filing index for accession 0001628280-26-001102. Last ingested by Listed: Nov 6, 2026, 02:06 ET. No prices; not investment advice.