Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
- 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>>
Common stock purchase or sale:
| Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
| 2025-12-19 Sale(A) | 2025-12-22 4:51 pm | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON Director | 5,000 | $2,050 | $10,250,000 | 10,559 (Indirect Direct) | View |
| 2025-12-19 Sale | 2025-12-22 10:14 am | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON Director | 5,000 | $0 | $0 | 10,559 (Indirect Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
| Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
| 2025-11-25 Gift | 2025-11-26 10:25 am | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON Director | 50 | $0 | 15,559 (Direct) | View |
| 2025-05-22 Option Award | 2025-05-23 7:08 pm | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON Director | 150 | $0 | 15,609 (Direct) | View |
| 2024-05-23 Option Award | 2024-05-24 12:13 pm | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON Director | 165 | $0 | 15,459 (Direct) | View |
| 2024-03-21 Gift | 2024-03-21 11:36 am | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON Director | 55 | $0 | 15,294 (Direct) | View |
| 2024-02-22 Option Award | 2024-02-23 9:26 pm | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON Director | 45 | $0 | 15,346 (Direct) | View |
| 2024-01-01 Tax Withholding | 2024-01-02 12:00 pm | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON President | 710 | $1,505 | 15,301 (Direct) | View |
| 2023-01-01 Tax Withholding | 2023-01-03 2:13 pm | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON President | 710 | $1,414 | 16,008 (Direct) | View |
| 2022-06-01 Gift | 2022-06-02 11:06 am | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON President | 100 | $0 | 16,718 (Direct) | View |
| 2022-01-01 Tax Withholding | 2022-01-04 8:59 pm | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON EVP & Chief Financial Officer | 800 | $1,014 | 16,814 (Direct) | View |
| 2021-02-25 Option Award | 2021-02-26 8:28 pm | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON EVP & Chief Financial Officer | 1,800 | $0 | 17,610 (Direct) | View |
| 2021-01-01 Tax Withholding | 2021-01-04 4:02 pm | N/A N/A | WHITE MOUNTAINS INSURANCE GROUP LTD | WTM | CAMPBELL REID TARLTON EVP & Chief Financial Officer | 930 | $1,001 | 15,810 (Direct) | View |