White Mountains Insurance Group Ltd
- SEC CIK
- 0000776867
- Latest filing
- Aug 12, 2026
Holdings in Q1 2021
Holdings as of Mar 31, 2021, filed May 14, 2021. Long positions only.
- Positions
- 1
- No 13F data for Q4 2020
- Portfolio value
- $600.2M
- No 13F data for Q4 2020
Livermore's 13F data starts with Q1 2021, so this quarter has no previous quarter to compare with and changes are not shown.
| Security | Class | Shares | Value | % of portfolio | Share change | Action | History |
|---|---|---|---|---|---|---|---|
| MAXMediaAlpha, Inc. | CL A | 16,939,998 | $600.2M | 100.0% | – | – | History |