WHITE MOUNTAINS INSURANCE GROUP LTD — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| Dillon Margaret | — | Award / Grant | 180 | — | — | 630 | May 25, 2023 |
| Tanner David Allen | — | Award / Grant | 180 | — | — | 1,793 | May 25, 2023 |
| SHANK SUZANNE F. | — | Award / Grant | 180 | — | — | 556 | May 25, 2023 |
| Gelston Philip A | — | Award / Grant | 180 | — | — | 1,418 | May 25, 2023 |
| CHOKSI MARY C | — | Award / Grant | 180 | — | — | 1,543 | May 25, 2023 |
| Hicks Weston M | — | Award / Grant | 250 | — | — | 1,306 | May 25, 2023 |
| Yi Steven | — | Award / Grant | 180 | — | — | 210 | May 25, 2023 |
| Rountree George Manning | Chief Executive Officer | Award / Grant | 2,000 | — | — | 7,400 | Feb 22, 2023 |
| Caffrey Liam P | EVP& Chief Financial Officer | Award / Grant | 1,250 | — | — | 2,500 | Feb 22, 2023 |
| SEELIG ROBERT LAWRENCE | EVP & General Counsel | Award / Grant | 1,000 | — | — | 3,250 | Feb 22, 2023 |
| Hildreth Michaela | MD & Chief Accounting Officer | Award / Grant | 600 | — | — | 1,950 | Feb 22, 2023 |
| Hicks Weston M | — | Award / Grant | 56 | — | — | 1,056 | Feb 22, 2023 |
| Rountree George Manning | Chief Executive Officer | Tax Withholding | 1,068 | $1,414.33 | $1,510,504 | 15,544 | Jan 1, 2023 |
| CAMPBELL REID TARLTON | President | Tax Withholding | 710 | $1,414.33 | $1,004,174 | 14,095 | Jan 1, 2023 |
| SEELIG ROBERT LAWRENCE | EVP & General Counsel | Tax Withholding | 359 | $1,414.33 | $507,744 | 15,950 | Jan 1, 2023 |
| Hildreth Michaela | MD & Chief Accounting Officer | Tax Withholding | 176 | $1,414.33 | $248,922 | 1,634 | Jan 1, 2023 |
| DAVIS MORGAN W | — | Gift | 200 | — | — | 6,709 | Dec 28, 2022 |
| Hildreth Michaela | MD & Chief Accounting Officer | Gift | 53 | — | — | 1,410 | Dec 28, 2022 |
| Hildreth Michaela | MD & Chief Accounting Officer | Sale | 100 | $1,371.84 | $137,184 | 1,463 | Dec 22, 2022 |
| Carlson Peter M | — | Sale | 200 | $1,400.00 | $280,000 | 788 | Sep 20, 2022 |
| DAVIS MORGAN W | — | Sale | 945 | $1,400.00 | $1,323,000 | 6,909 | Sep 20, 2022 |
| CAMPBELL REID TARLTON | President | Gift | 100 | — | — | 13,005 | Jun 1, 2022 |
| Hildreth Michaela | MD & Chief Accounting Officer | Sale | 100 | $1,270.94 | $127,094 | 1,563 | May 31, 2022 |
| DAVIS MORGAN W | — | Award / Grant | 315 | — | — | 7,854 | May 26, 2022 |
| Dillon Margaret | — | Award / Grant | 225 | — | — | 450 | May 26, 2022 |
| Gelston Philip A | — | Award / Grant | 225 | — | — | 1,238 | May 26, 2022 |
| Carlson Peter M | — | Award / Grant | 225 | — | — | 988 | May 26, 2022 |
| CHOKSI MARY C | — | Award / Grant | 225 | — | — | 1,363 | May 26, 2022 |
| Tanner David Allen | — | Award / Grant | 225 | — | — | 1,613 | May 26, 2022 |
| SHANK SUZANNE F. | — | Award / Grant | 225 | — | — | 376 | May 26, 2022 |
| SEELIG ROBERT LAWRENCE | EVP & General Counsel | Gift | 25 | — | — | 15,409 | May 16, 2022 |
| Rountree George Manning | Chief Executive Officer | Award / Grant | 2,700 | — | — | 8,100 | Feb 25, 2022 |
| SEELIG ROBERT LAWRENCE | EVP & General Counsel | Award / Grant | 750 | — | — | 15,434 | Feb 25, 2022 |
| Hildreth Michaela | MD & Chief Accounting Officer | Award / Grant | 750 | — | — | 1,750 | Feb 25, 2022 |
| Rountree George Manning | Chief Executive Officer | Tax Withholding | 1,187 | $1,013.90 | $1,203,499 | 13,912 | Jan 1, 2022 |
| CAMPBELL REID TARLTON | EVP & Chief Financial Officer | Tax Withholding | 800 | $1,013.90 | $811,120 | 13,105 | Jan 1, 2022 |
| Hildreth Michaela | Chief Accounting Officer | Tax Withholding | 178 | $1,013.90 | $180,474 | 1,663 | Jan 1, 2022 |
| DAVIS MORGAN W | — | Gift | 150 | — | — | 7,539 | Dec 8, 2021 |
| SHANK SUZANNE F. | — | Award / Grant | 151 | — | — | 151 | Oct 10, 2021 |
| Hildreth Michaela | Chief Accounting Officer | Gift | 65 | — | — | 1,441 | Jun 18, 2021 |
| SEELIG ROBERT LAWRENCE | EVP & General Counsel | Gift | 41 | — | — | 13,684 | Jun 7, 2021 |
| Carlson Peter M | — | Award / Grant | 225 | — | — | 763 | May 27, 2021 |
| Dillon Margaret | — | Award / Grant | 225 | — | — | 225 | May 27, 2021 |
| Tanner David Allen | — | Award / Grant | 225 | — | — | 1,388 | May 27, 2021 |
| Gelston Philip A | — | Award / Grant | 225 | — | — | 1,013 | May 27, 2021 |
| DAVIS MORGAN W | — | Award / Grant | 315 | — | — | 1,030 | May 27, 2021 |
| CHOKSI MARY C | — | Award / Grant | 225 | — | — | 1,138 | May 27, 2021 |
| SEELIG ROBERT LAWRENCE | EVP & General Counsel | Gift | 45 | — | — | 13,725 | Mar 17, 2021 |
| Rountree George Manning | Chief Executive Officer | Award / Grant | 2,700 | — | — | 8,400 | Feb 25, 2021 |
| CAMPBELL REID TARLTON | EVP & Chief Financial Officer | Award / Grant | 1,800 | — | — | 5,600 | Feb 25, 2021 |