CIK 0000776867 · Large accelerated filer
WHITE MOUNTAINS INSURANCE GROUP LTD
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- WTM
- Exchange
- NYSE
- Industry
- Fire, Marine & Casualty Insurance
- FY end
- Dec 31
- Incorporated
- Bermuda
- Entity type
- operating
- EIN
- 942708455
- Phone
- 603 640 2200
- Business address
- 23 SOUTH MAIN STREET, SUITE 3B, HANOVER, NH, 03755
- Former names
- WHITE MOUNTAINS INSURANCE GROUP INC, FUND AMERICAN ENTERPRISES HOLDINGS INC
- Open-market buys, last 90 days
- $0
- in 0 filings
- Open-market sales, last 90 days
- $0
- in 0 filings
Shares bought or sold at a price by officers, directors and 10% owners (Form 4 codes P and S). Grants, option exercises and tax withholding aren't counted.
Reading 100 more Form 4s from the SEC; this list fills in as they're read.
| Date | Insider | Transaction | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|
| 2026-08-31 | Tanner David Allen Director | Gift | −2 | 2,012 | ||
| 2026-08-26 | Klar Stephen Director | Grant or award | +113 | 113 | ||
| 2026-05-21 | Tanner David Allen Director | Grant or award | +135 | 2,014 | ||
| 2026-05-21 | SHANK SUZANNE F. Director | Grant or award | +135 | 1,006 | ||
| 2026-05-21 | Hicks Weston M Director | Grant or award | +190 | 2,936 | ||
| 2026-05-21 | Gelston Philip A Director | Grant or award | +135 | 1,703 | ||
| 2026-05-21 | Dillon Margaret Director | Grant or award | +135 | 1,080 | ||
| 2026-05-21 | Chu John Director | Grant or award | +135 | 335 | ||
| 2026-05-21 | CHOKSI MARY C Director | Grant or award | +135 | 1,993 | ||
| 2026-05-21 | Carlson Peter M Director | Grant or award | +135 | 852 | ||
| 2026-05-21 | CAMPBELL REID TARLTON Director | Grant or award | +135 | 10,575 | ||
| 2026-03-19 | SEELIG ROBERT LAWRENCE EVP & General Counsel | Gift | −50 | 17,857 | ||
| 2026-03-04 | Tanner David Allen Director | Gift | −225 | 1,879 | ||
| 2026-02-25 | Caffrey Liam P Chief Executive Officer | Grant or award | +1,500 | 3,650 | ||
| 2026-02-25 | Harrison Giles E President | Grant or award | +775 | 2,675 | ||
| 2026-02-25 | Hildreth Michaela MD & Chief Accounting Officer | Grant or award | +600 | 1,825 | ||
| 2026-02-25 | Papamichael Michael A Chief Financial Officer | Grant or award | +500 | 1,200 | ||
| 2026-02-25 | SEELIG ROBERT LAWRENCE EVP & General Counsel | Grant or award | +775 | 2,500 | ||
| 2026-01-01 | Hildreth Michaela MD & Chief Accounting Officer | Shares withheld for taxes | −274 | $2,078.03 | $569K | 2,491 |
| 2026-01-01 | Papamichael Michael A Chief Financial Officer | Shares withheld for taxes | −131 | $2,078.03 | $272K | 772 |
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