| Symbol | WTM |
|---|---|
| Name | WHITE MOUNTAINS INSURANCE GROUP LTD |
| Sector | FINANCE |
| Region | North America |
| Industry | Fire, Marine & Casualty Insurance |
| Address | 23 SOUTH MAIN STREET, HANOVER, NH 03755 |
| Telephone | 603 640 2200 |
| Fax | — |
| — | |
| Website | https://www.whitemountains.com |
| Incorporation | UNDEFINED |
| Incorporated On | — |
| Employees | — |
| Fiscal Year | — |
| Public Since | — |
| Exchanges | NASDAQ |
| Auditor | — |
| Audit Status | NOT PROVIDED |
| Reporting Status | — |
| CIK | 0000776867 |
| Description | White Mountains Insurance Group Ltd is a financial service holding company with primary business interests in property and casualty insurance and reinsurance. Business activity of the firm is operated through HG Global/BAM, NSM, Kudu, and Other Operations. The NSM segment consists of specialty property and casualty insurance. The HG Global/BAM segment offers insurance on municipal bonds issued to finance public purposes. The Kudu segment provides capital solutions for boutique asset managers for a variety of purposes including generational ownership transfers, management buyouts, acquisition and growth finance and legacy partner liquidity. The Other Operations segment provides investment management services of assets under management. Additional info from NASDAQ: |
Director Klar Stephen 🟢 acquired 113 shares of WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) Transaction Date: Aug 26, 2026 | Filing ID: 000049
Read moreNew Form 3 - WHITE MOUNTAINS INSURANCE GROUP LTD <b>Filed:</b> 2026-08-27 <b>AccNo:</b> 0000776867-26-000047 <b>Size:</b> 8 KB
Read moreNew Form 13F-HR - WHITE MOUNTAINS INSURANCE GROUP LTD <b>Filed:</b> 2026-08-12 <b>AccNo:</b> 0001104659-26-094905 <b>Size:</b> 5 KB
Read moreDirector Tanner David Allen 🟢 acquired 135 shares of WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) Transaction Date: May 21, 2026 | Filing ID: 000045
Read moreDirector SHANK SUZANNE F. 🟢 acquired 135 shares of WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) Transaction Date: May 21, 2026 | Filing ID: 000044
Read moreDirector Hicks Weston M 🟢 acquired 190 shares of WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) Transaction Date: May 21, 2026 | Filing ID: 000043
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