Real time Form 13D and 13G transaction reports:
- Schedule 13D must be filed within ten days after a person or an organization acquires beneficial ownership of more than 5% of a voting class of a company's equity securities.
- Due to inconsistent filing format, it is highly recommended that you read the orignal filing form.
- Shares are not adjusted for stock split.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>
| Reported DateTime | Type | Company Symbol | Filed By Symbol | Shares Owned % Owned | Shares Vs. Prev Report | Filing |
| 2024-11-12 5:29 pm Sale | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | FULLER & THALER ASSET MANAGEMENT INC. | 122,277 4.760% | -7,243 (-5.59%) | View |
| 2024-05-09 7:44 pm Sale | 13D | MEDIAALPHA INC MAX | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | 17,856,614 32.900% | -5,000,200 (-21.88%) | View |
| 2024-05-03 5:10 pm Unchanged | 13D | MEDIAALPHA INC MAX | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | 22,856,814 44.300% | 0 (Unchanged) | View |
| 2024-02-13 5:17 pm Sale | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | VANGUARD GROUP INC | 253,419 9.900% | -3,734 (-1.45%) | View |
| 2024-02-12 5:45 pm Sale | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | FULLER & THALER ASSET MANAGEMENT INC. | 129,520 5.060% | -23,750 (-15.50%) | View |
| 2024-02-09 12:57 pm Purchase | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | MORGAN STANLEY MS | 185,611 7.200% | 5,242 (+2.91%) | View |
| 2024-02-09 09:58 am Purchase | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | DIMENSIONAL FUND ADVISORS LP | 161,957 6.300% | 1,878 (+1.17%) | View |
| 2024-01-02 6:00 pm Unchanged | 13D | MEDIAALPHA INC MAX | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | 22,856,814 48.300% | 0 (Unchanged) | View |
| 2023-11-02 4:08 pm Unchanged | 13D | MEDIAALPHA INC MAX | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | 22,856,814 48.700% | 0 (Unchanged) | View |
| 2023-06-30 08:15 am Purchase | 13D | MEDIAALPHA INC MAX | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | 22,856,814 49.900% | 5,916,816 (+34.93%) | View |
| 2023-06-08 1:29 pm Sale | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | River Road Asset Management LLC | 125,205 4.900% | -14,218 (-10.20%) | View |
| 2023-03-10 07:59 am Purchase | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | VANGUARD GROUP INC | 257,153 10.010% | 3,232 (+1.27%) | View |
| 2023-02-14 12:10 pm Purchase | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | FULLER & THALER ASSET MANAGEMENT INC. | 153,270 5.950% | 153,270 (New Position) | View |
| 2023-02-10 4:29 pm Unchanged | 13G | MEDIAALPHA INC MAX | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | 16,939,998 39.300% | 0 (Unchanged) | View |
| 2023-02-10 2:42 pm Purchase | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | DIMENSIONAL FUND ADVISORS LP | 160,079 6.200% | 160,079 (New Position) | View |
| 2023-02-10 12:59 pm Sale | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | MORGAN STANLEY MS | 180,369 7.000% | -6,536 (-3.50%) | View |
| 2023-02-09 11:37 am Sale | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | VANGUARD GROUP INC | 253,921 9.860% | -25,441 (-9.11%) | View |
| 2023-02-08 10:50 am Purchase | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | River Road Asset Management LLC | 139,423 5.400% | 11,331 (+8.85%) | View |
| 2023-02-06 2:36 pm Sale | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | WELLINGTON MANAGEMENT GROUP LLP | 83,374 3.240% | -138,185 (-62.37%) | View |
| 2022-05-06 10:43 am Sale | 13G | WHITE MOUNTAINS INSURANCE GROUP LTD WTM | River Road Asset Management LLC | 128,092 4.300% | -40,955 (-24.23%) | View |