White Mountains Insurance Group Ltd
- SEC CIK
- 0000776867
- Latest filing
- Aug 12, 2026
Holdings in Q3 2025
Holdings as of Sep 30, 2025, filed Nov 13, 2025. Long positions only; changes compare share counts with Q2 2025.
- Positions
- 1
- 0 vs. Q2 2025
- Portfolio value
- $203.2M
- +$7.68M (+3.9%) vs. Q2 2025
| Security | Class | Shares | Value | % of portfolio | Share change | Action | History |
|---|---|---|---|---|---|---|---|
| MAXMediaAlpha, Inc. | CL A | 17,856,614 | $203.2M | 100.0% | 00.0% | Unchanged | History |