WTM · White Mountains Insurance Group Ltd · Documents
Market Cap
$4.92B
Shares
2.39M
The company's filings as submitted to the SEC's EDGAR system — 10-K, 10-Q, 8-K, proxy statements and more — listed most recent first.
| Type | Filing Date | Period | Open |
|---|---|---|---|
| 8-K | 2026-08-27 | 2026-08-26 | |
| 10-Q | 2026-08-06 | 2026-06-30 | |
| 8-K | 2026-08-06 | — | |
| 8-K | 2026-06-05 | — | |
| 8-K | 2026-05-21 | — | |
| 8-K | 2026-05-15 | 2026-05-14 | |
| 10-Q | 2026-05-06 | 2026-03-31 | |
| 8-K | 2026-05-06 | — | |
| 8-K | 2026-04-01 | — | |
| DEF 14A | 2026-04-01 | 2026-05-21 | |
| 10-K | 2026-02-27 | 2025-12-31 | |
| 8-K | 2026-02-26 | — | |
| 8-K | 2026-02-06 | — | |
| 8-K | 2026-01-07 | — | |
| 8-K | 2025-12-08 | 2025-12-05 | |
| 8-K | 2025-11-06 | — | |
| 10-Q | 2025-11-06 | 2025-09-30 | |
| 8-K | 2025-10-03 | 2025-10-02 | |
| 8-K | 2025-09-03 | 2025-09-02 | |
| 8-K | 2025-09-02 | — | |
| 8-K | 2025-08-07 | — | |
| 10-Q | 2025-08-07 | 2025-06-30 | |
| 8-K | 2025-07-18 | — | |
| 8-K | 2025-07-16 | — | |
| 8-K | 2025-07-07 | 2025-07-04 | |
| 8-K | 2025-06-06 | — | |
| 8-K | 2025-05-22 | — | |
| 10-Q | 2025-05-07 | 2025-03-31 | |
| 8-K | 2025-05-07 | — | |
| 8-K | 2025-04-10 | — | |
| DEF 14A | 2025-04-02 | 2025-05-22 | |
| 10-K | 2025-02-28 | 2024-12-31 | |
| 8-K | 2025-02-07 | — | |
| 8-K | 2025-01-08 | — | |
| 10-Q | 2024-11-06 | 2024-09-30 | |
| 8-K | 2024-11-06 | — | |
| 8-K | 2024-08-07 | — | |
| 10-Q | 2024-08-07 | 2024-06-30 | |
| 8-K | 2024-06-07 | — | |
| 8-K | 2024-05-23 | — | |
| 10-Q | 2024-05-09 | 2024-03-31 | |
| 8-K | 2024-05-09 | — | |
| 8-K | 2024-04-10 | — | |
| DEF 14A | 2024-04-04 | 2024-05-23 | |
| 10-K | 2024-02-26 | 2023-12-31 | |
| 8-K | 2024-02-23 | 2024-02-22 | |
| 8-K | 2024-02-07 | — | |
| 8-K | 2024-01-03 | 2024-01-02 | |
| 8-K | 2023-12-21 | — | |
| 8-K | 2023-11-06 | — |
Showing 1–50 of 118 filings