White Mountains Insurance Group Ltd
2020 Q4 - 2025 Q4 (21 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 | 1,613 | 0.0% | 776 | 12/31/2025 |
| 2025 Q3 | 11/14/2025 | 1,361 | 0.0% | 814 | 9/30/2025 |
| 2025 Q2 | 7/15/2025 | 1,455 | 0.0% | 810 | 6/30/2025 |
| 2025 Q1 | 5/14/2025 | 1,529 | 0.0% | 794 | 3/31/2025 |
| 2024 Q4 | 2/19/2025 | 1,731 | 0.0% | 890 | 12/31/2024 |
| 2024 Q3 | 11/15/2024 | 1,596 | 0.0% | 941 | 9/30/2024 |
| 2024 Q2 | 8/14/2024 | 1,797 | 0.0% | 989 | 6/30/2024 |
| 2024 Q1 | 5/15/2024 | 1,771 | 0.0% | 987 | 3/31/2024 |
| 2023 Q4 | 2/16/2024 | 1,624 | 0.0% | 1,079 | 12/31/2023 |
| 2023 Q3 | 12/19/2023 | 1,572 | 0.0% | 1,051 | 9/30/2023 |
| 2023 Q2 | 12/19/2023 | 1,614 | 0.0% | 1,162 | 6/30/2023 |
| 2023 Q1 | 12/19/2023 | 1,770 | 0.0% | 1,285 | 3/31/2023 |
| 2022 Q4 | 12/19/2023 | 1,877 | 0.0% | 1,327 | 12/31/2022 |
| 2022 Q3 | 11/15/2022 | 2,068 | 0.0% | 1,587 | 9/30/2022 |
| 2022 Q2 | 8/15/2022 | 2,026 | 0.0% | 1,626 | 6/30/2022 |
| 2022 Q1 | 5/16/2022 | 1,958 | 0.0% | 1,723 | 3/31/2022 |
| 2021 Q4 | 2/15/2022 | 1,793 | 0.0% | 1,768 | 12/31/2021 |
| 2021 Q3 | 11/15/2021 | 2,157 | 0.0% | 2,017 | 9/30/2021 |
| 2021 Q2 | 8/16/2021 | 2,304 | 0.0% | 2,007 | 6/30/2021 |
| 2021 Q1 | 5/14/2021 | 2,176 | 0.0% | 1,952 | 3/31/2021 |
| 2020 Q4 | 2/12/2021 | 1,672 | 0.0% | 1,671 | 12/31/2020 |