White Mountains Insurance Group Ltd. (WTM)
NYSE: WTM · Fire, Marine & Casualty Insurance · Hanover, NH · filing with the SEC since 1994
Grade6.3
◀ Past 6.6● Present 6.4▶ Future 5.9
Who runs White Mountains Insurance Group Ltd.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Caffrey Liam P
Chief Executive Officer. First filing Mar 2022, latest Feb 27, 2026, 0 filings in all.
Officers reporting now
7
of 16 people with a filing in the last fifteen months
Directors reporting now
9
29 people on the record since 2006
Officerssales are open-market, Nov 5, 2025 to Nov 5, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Campbell Reid Tarlton | President | Jun 2007 | May 22, 2026 | 2 · $10.3M |
| Seelig Robert Lawrence | EVP & General Counsel | May 2006 | Mar 20, 2026 | none |
| Caffrey Liam P | Chief Executive Officer | Mar 2022 | Feb 27, 2026 | none |
| Harrison Giles E | President | Jun 2024 | Feb 27, 2026 | none |
| Papamichael Michael A | Chief Financial Officer | Jan 2026 | Feb 27, 2026 | none |
| Hildreth Michaela | MD & Chief Accounting Officer | May 2021 | Feb 27, 2026 | none |
| Rountree George Manning | Chief Executive Officer | Mar 2009 | Dec 22, 2025 | 1 · $10.3M |
Directorssales are open-market, Nov 5, 2025 to Nov 5, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Tanner David Allen | director | Aug 2018 | Aug 31, 2026 | none |
| Klar Stephen | director | Aug 2026 | Aug 27, 2026 | none |
| Carlson Peter M | director | Feb 2019 | May 22, 2026 | none |
| Choksi Mary C | director | Aug 2017 | May 22, 2026 | none |
| Chu John | director | May 2026 | May 22, 2026 | none |
| Dillon Margaret | director | May 2021 | May 22, 2026 | none |
| Gelston Philip A | director | Mar 2018 | May 22, 2026 | 1 · $300,000 |
| Hicks Weston M | director | Feb 2023 | May 22, 2026 | none |
| Shank Suzanne F. | director | Oct 2021 | May 22, 2026 | none |
Owners of more than 10% of a classsales are open-market, Nov 5, 2025 to Nov 5, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| White Mountains Insurance Group Ltd | 10% owner | Nov 2026 | Nov 5, 2026 | 1 · $76.5M |
| Wm Hinson (Bermuda) Ltd. | 10% owner | Nov 2026 | Nov 5, 2026 | none |
Earlier names on the record13, newest filing first
Yi Steven · director · last filing May 2025Davis Morgan W · officer · last filing Dec 2022Palmer Jess Brian · officer · last filing Jan 2021Holiday Edith E · director · last filing May 2020Bazos Frank R · officer · last filing Mar 2020Smith Lowndes Andrew · director · last filing Dec 2019Brouillette Yves · director · last filing May 2019Tolman Gary Charles · officer · last filing May 2018Frinquelli Angelo Michael · director · last filing Nov 2017Foy David Thomas · officer · last filing May 2017Barrette Raymond Joseph Rene · officer · last filing Mar 2017Linker David · officer · last filing Mar 2017Oberting Kernan V · officer · last filing Jan 2016
A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.