WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) has 108 open-market insider trades by 18 insiders since 2006. The most active filer is Raymond Joseph Rene Barrette, CEO.
| Name | Title | Tier | Trades | Value | Last Trade |
|---|---|---|---|---|---|
| Morgan W. Davis | Dir | — | 22 | $20.3M | 2022-12-28 |
| Reid Tarlton Campbell | Dir | — | 8 | $14.6M | 2026-05-21 |
| Raymond Joseph Rene Barrette | CEO | — | 29 | $14.5M | 2017-03-01 |
| George Manning Rountree | CEO | — | 3 | $13.9M | 2025-12-19 |
| Robert Lawrence Seelig | CLOVP | — | 10 | $9.6M | 2026-03-19 |
| Robert Phillips Cochran | Dir | — | 2 | $6.3M | 2011-05-26 |
| Yves Brouillette | Dir | — | 6 | $5.2M | 2019-05-23 |
| Lowndes Andrew Smith | Dir | — | 5 | $3.4M | 2019-12-10 |
| Weston M. Hicks | Dir | — | 1 | $2.9M | 2026-05-21 |
| Jess Brian Palmer | CAO | — | 2 | $2.8M | 2021-01-01 |
| Insider | Title | Type | Value | Date |
|---|---|---|---|---|
| Reid Tarlton Campbell | Director | Sell | $10.3M | 2025-12-19 |
| Philip A. Gelston | Director | Sell | $676K | 2025-12-16 |
| Weston M. Hicks | Director | Buy | $2.9M | 2023-11-17 |
| Michaela Hildreth | CAO | Sell | $137K | 2022-12-22 |
| Peter M. Carlson | Director | Sell | $280K | 2022-09-20 |
| Morgan W. Davis | Director | Sell | $1.3M | 2022-09-20 |
Companies that share insiders with WTM, and sector peers with recent insider buying. Related by who files, not by how the stocks move.
| Michaela Hildreth | CAO | Sell | $127K | 2022-05-31 |
| Morgan W. Davis | Director | Sell | $1.7M | 2021-02-09 |
| Morgan W. Davis | Director | Buy | $795K | 2020-03-24 |
| Lowndes Andrew Smith | Director | Sell | $221K | 2019-12-10 |
| Lowndes Andrew Smith | Director | Sell | $2.2M | 2019-08-08 |
| Robert Lawrence Seelig | CLO & VP | Sell | $1.8M | 2019-06-24 |
| Jess Brian Palmer | CAO | Sell | $876K | 2019-06-18 |
| Lowndes Andrew Smith | Director | Sell | $502K | 2019-06-10 |
| Robert Lawrence Seelig | CLO & VP | Sell | $2.1M | 2019-05-09 |