White Mountains Insurance Group Ltd
2019 Q4 - 2025 Q4 (25 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 | 826 | 0.0% | 397 | 12/31/2025 |
| 2025 Q3 | 11/13/2025 | 587 | 0.0% | 351 | 9/30/2025 |
| 2025 Q2 | 8/13/2025 | 210 | 0.0% | 117 | 6/30/2025 |
| 2025 Q1 | 5/13/2025 | 223 | 0.0% | 116 | 3/31/2025 |
| 2024 Q4 | 2/13/2025 | 266 | 0.0% | 137 | 12/31/2024 |
| 2024 Q3 | 11/13/2024 | 221 | 0.0% | 130 | 9/30/2024 |
| 2024 Q2 | 8/8/2024 | 494 | 0.0% | 272 | 6/30/2024 |
| 2024 Q1 | 5/8/2024 | 639 | 0.0% | 356 | 3/31/2024 |
| 2023 Q4 | 2/5/2024 | 24 | 0.0% | 16 | 12/31/2023 |
| 2023 Q3 | 11/13/2023 | 10 | 0.0% | 7 | 9/30/2023 |
| 2023 Q2 | 8/10/2023 | 1 | 0.0% | 1 | 6/30/2023 |
| 2023 Q1 | 5/9/2023 | 1,839 | 0.0% | 1,335 | 3/31/2023 |
| 2022 Q4 | 2/8/2023 | 424 | 0.0% | 300 | 12/31/2022 |
| 2022 Q3 | 11/4/2022 | 390 | 0.0% | 300 | 9/30/2022 |
| 2022 Q2 | 7/29/2022 | 373 | 0.0% | 300 | 6/30/2022 |
| 2022 Q1 | 5/5/2022 | 340 | 0.0% | 300 | 3/31/2022 |
| 2021 Q4 | 1/21/2022 | 304 | 0.0% | 300 | 12/31/2021 |
| 2021 Q3 | 11/8/2021 | 1,389 | 0.0% | 1,300 | 9/30/2021 |
| 2021 Q2 | 8/4/2021 | 2,066 | 0.0% | 1,800 | 6/30/2021 |
| 2021 Q1 | 5/10/2021 | 2,563 | 0.0% | 2,300 | 3/31/2021 |
| 2020 Q4 | 2/8/2021 | 2,363 | 0.0% | 2,362 | 12/31/2020 |
| 2020 Q3 | 11/9/2020 | 77 | 0.0% | 100 | 9/30/2020 |
| 2020 Q2 | 8/5/2020 | 2,745 | 0.0% | 3,094 | 6/30/2020 |
| 2020 Q1 | 5/6/2020 | 2,675 | 0.0% | 2,941 | 3/31/2020 |
| 2019 Q4 | 1/29/2020 | 3,563 | 0.0% | 3,195 | 12/31/2019 |