White Mountains Insurance Group Ltd
- SEC CIK
- 0000776867
- Latest filing
- Aug 12, 2026
Holdings in Q1 2025
Holdings as of Mar 31, 2025, filed May 12, 2025. Long positions only; changes compare share counts with Q4 2024.
- Positions
- 2
- 0 vs. Q4 2024
- Portfolio value
- $285.9M
- −$140.2M (−32.9%) vs. Q4 2024
| Security | Class | Shares | Value | % of portfolio | Share change | Action | History |
|---|---|---|---|---|---|---|---|
| MAXMediaAlpha, Inc. | CL A | 17,856,614 | $165.0M | 57.7% | 00.0% | Unchanged | History |
| SPYSPDR S&P 500 ETF Trust | ETF | 216,197 | $120.9M | 42.3% | −166,949−43.6% | Reduced | History |