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 | 2/12/2026 | 5,222 | 0.0% | 2,513 | 12/31/2025 |
| 2025 Q3 | 11/3/2025 | 4,211 | 0.0% | 2,519 | 9/30/2025 |
| 2025 Q2 | 10/8/2025 | 4,523 | 0.0% | 2,519 | 6/30/2025 |
| 2025 Q1 | 10/8/2025 | 5,244 | 0.0% | 2,723 | 3/31/2025 |
| 2024 Q4 | 10/8/2025 | 5,296 | 0.0% | 2,723 | 12/31/2024 |
| 2024 Q3 | 10/8/2025 | 4,619 | 0.0% | 2,723 | 9/30/2024 |
| 2024 Q2 | 10/8/2025 | 4,949 | 0.0% | 2,723 | 6/30/2024 |
| 2024 Q1 | 10/8/2025 | 4,633 | 0.0% | 2,582 | 3/31/2024 |
| 2023 Q4 | 10/8/2025 | 4,640 | 0.0% | 3,083 | 12/31/2023 |
| 2023 Q3 | 10/8/2025 | 4,610 | 0.0% | 3,082 | 9/30/2023 |
| 2023 Q2 | 10/8/2025 | 4,975 | 0.0% | 3,582 | 6/30/2023 |
| 2023 Q1 | 10/8/2025 | 4,907 | 0.0% | 3,562 | 3/31/2023 |
| 2022 Q4 | 10/8/2025 | 5,745 | 0.0% | 4,062 | 12/31/2022 |
| 2022 Q3 | 11/8/2022 | 5,555 | 0.0% | 4,263 | 9/30/2022 |
| 2022 Q2 | 8/4/2022 | 8,540 | 0.0% | 6,853 | 6/30/2022 |
| 2022 Q1 | 7/1/2022 | 9,176 | 0.0% | 8,076 | 3/31/2022 |
| 2021 Q4 | 2/2/2022 | 6,478 | 0.0% | 6,389 | 12/31/2021 |
| 2021 Q3 | 11/2/2021 | 4,931 | 0.0% | 4,610 | 9/30/2021 |
| 2021 Q2 | 8/2/2021 | 5,297 | 0.0% | 4,614 | 6/30/2021 |
| 2021 Q1 | 5/11/2021 | 4,395 | 0.0% | 3,942 | 3/31/2021 |
| 2020 Q4 | 2/8/2021 | 4,445 | 0.0% | 4,442 | 12/31/2020 |
| 2020 Q3 | 11/5/2020 | 3,850 | 0.0% | 4,942 | 9/30/2020 |
| 2020 Q2 | 8/7/2020 | 4,832 | 0.0% | 5,442 | 6/30/2020 |
| 2020 Q1 | 5/6/2020 | 5,407 | 0.0% | 5,942 | 3/31/2020 |
| 2019 Q4 | 2/5/2020 | 6,628 | 0.0% | 5,942 | 12/31/2019 |