White Mountains Insurance Group Ltd
2013 Q4 - 2025 Q4 (5 filings)
Shares History
History scope: non-option holdings only (PUT/CALL rows excluded).
| All 13F Holders | Filing date | Value ($000s) | % of Holdings | Shares | Reporting period |
|---|---|---|---|---|---|
| 2025 Q4 | 2/17/2026 | 28,257 | 18% | 13,598 | 12/31/2025 |
| 2025 Q3 | 11/13/2025 | 24,755 | 17% | 14,810 | 9/30/2025 |
| 2025 Q2 | 8/14/2025 | 26,756 | 20% | 14,900 | 6/30/2025 |
| 2014 Q1 | 5/14/2014 | 18,310 | 12% | 30,522 | 3/31/2014 |
| 2013 Q4 | 2/12/2014 | 17,007 | 11% | 28,200 | 12/31/2013 |