WHITE MOUNTAINS INSURANCE GROUP LTD
Public company- Headquarters
- HANOVER, New Hampshire
- Industry
- Insurance
- Ticker
- WTM
- CIK
- 0000776867
WARN notices since 2024
0
None on record
Workers affected since 2024
0
Across 0 notices
Executive changes, last 12 months
1
1 appointment, 0 departures
Last event
Aug 27, 2026
Executive appointmentdirector appointed: Stephen Klar
Workers affected over time
Cumulative workers in WARN notices since 2024
Not enough notices to chart yet.
Leadership
| Role and person | Since | Change |
|---|---|---|
| directorStephen Klar | Aug 27, 2026 | Appointed |
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- Executive appointment
director appointed: Stephen Klar
Stephen Klar was named director of WHITE MOUNTAINS INSURANCE GROUP LTD, effective August 26, 2026. The company reported the change in an 8-K that cites Item 5.02.
Source: SEC 8-K, filed Aug 27, 2026Role: director
Only one public record so far. We add events as soon as a new filing lands; watch WHITE MOUNTAINS INSURANCE GROUP LTD to get them in your digest.
Last verified Nov 8, 2026