White Mountains Insurance Group Ltd.
WTM | NYSE
$2,056.85
-$4.45 (-0.22%)
At close: Sep 21, 2026, 4:00 PM ET
$2,056.85
$0 (0.00%)
After-hours:
Sep 21, 2026, 6:22 PM ET
Company Profile
White Mountains Insurance Group, Ltd. provides insurance services in the United States, the United Kingdom, Bermuda, and internationally. It operates through Ark/WM Outrigger, HG Global, Kudu, Distinguished, and Other Operations segments. The company offers property insurance and reinsurance; specialty insurance and reinsurance consisting of aviation, contingency, cyber, fine art and specie, mortgage, nuclear, political and credit, space, surety, and terrorism and political violence; marine and energy insurance and reinsurance; casualty insurance and reinsurance, such as medical malpractice, and professional and general liability; and accident and health insurance and reinsurance, which includes personal accident, sickness, disability, travel, short-term life, and medical products through brokers, managing general agents (MGA), and reinsurance intermediaries. It also provides municipal bond guarantee reinsurance, which focuses on single risk limits for small-to-medium sized, and public investment grade municipal bonds that are issued to finance public purpose projects, including schools, utilities, and transportation facilities. In addition, the company offers capital solutions for boutique asset and wealth managers for generational ownership transfers, management buyouts, acquisition and growth finance, and legacy partner liquidity; strategic advice; investment management; and specialty electrical contracting services. Further, it operates as a full-service MGA and program administrator for specialty property and casualty insurance for the real estate and hospitality end markets, and start-up programs; and an MGA for leisure travel and global expatriate medical insurance in Israel, the European Union, and Australia. The company was formerly known as Fund American Enterprises Holdings, Inc. and changed its name to White Mountains Insurance Group, Ltd. in 1999. White Mountains Insurance Group, Ltd. was incorporated in 1980 and is headquartered in Hamilton, Bermuda.
Key Executives
| Name | Position |
|---|---|
| Liam Caffrey | Chief Executive Officer & Director |
| Timothy Michael Miller | Chief Executive Officer of OneBeacon Ltd, President of OneBeacon Ltd and Chief Operating Officer of Onebeacon |
| David Grant Staples | Head of Tax |
| Dennis Beaulieu | Treasurer |
| George Manning Rountree | Senior Advisor |
| Giles Edward Harrison | President |
| Jennifer L. Moyer | Chief Administrative Officer & Corporate Secretary |
| Jonathan Adam Cramer | Chief Investment Officer |
| Michael Papamichael | MD & CFO |
| Michaela J. Hildreth | MD & Chief Accounting Officer |
| Robert Lawrence Seelig | Executive Vice President, General Counsel & Investor Relation |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Aug 31, 2026 | 4 | Filing |
| Aug 27, 2026 | 4 | Filing |
| Aug 27, 2026 | 3 | Filing |
| Aug 27, 2026 | 8-K | Current Report |
| Aug 26, 2026 | N-PX | Filing |
| Aug 12, 2026 | 13F-HR | Quarterly report filed by institutional managers, ... |
| Aug 06, 2026 | 10-Q | Quarterly Report |
| Aug 06, 2026 | 8-K | Current Report |
| Jun 30, 2026 | 11-K | Filing |
| Jun 05, 2026 | 8-K | Current Report |
White Mountains Insurance Group Ltd.
| Country | Bermuda |
| IPO Date | Oct 22, 1985 |
| Industry | Insurance - Diversified |
| Sector | Financial Services |
| Employees | 1,648 |
| CEO | Liam Caffrey |
Contact Details
A.S. Cooper Building Hamilton,
New Hampshire HM 11 Bermuda
Stock Details
| Ticker Symbol | WTM |
| Exchange | NYSE |
| Fiscal Year | January - December |
| Reporting Currency | USD |
| CIK Code | 0000776867 |
| CUSIP Number | G9618E107 |
| ISIN Number | BMG9618E1075 |
| SIC Code | 6331 |
Recent News
- 14 days ago / defenseworld.net721 Shares in White Mountains Insurance Group, Ltd. $WTM Acquired by Public Employees Retirement System of Ohio
- 18 days ago / zacks.comAll You Need to Know About White Mountains (WTM) Rating Upgrade to Buy
- 26 days ago / prnewswire.comStephen Klar Elected to the White Mountains Board
- 2 months ago / prnewswire.comWHITE MOUNTAINS REPORTS SECOND QUARTER RESULTS
- 2 months ago / zacks.comWhite Mountains (WTM) is an Incredible Growth Stock: 3 Reasons Why
- 2 months ago / defenseworld.netBank of New York Mellon Corp Has $18.55 Million Stock Holdings in White Mountains Insurance Group, Ltd. $WTM
- 2 months ago / defenseworld.netWhite Mountains Insurance Group, Ltd. $WTM Position Trimmed by Bradley Foster & Sargent Inc. CT
- 3 months ago / prnewswire.comAustralian Financial Planning Group Secures Minority Investment from Kudu Investment Management to Fund Growth Initiatives
- 4 months ago / seekingalpha.comWhite Mountains Insurance Group, Ltd. (WTM) Analyst/Investor Day Transcript
- 4 months ago / prnewswire.comWhite Mountains to Hold 2026 Annual Investor Information Meeting on June 5, 2026
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