Price$2066.96-157.70 (-7.09%)
2026-03-042026-06-05
News · 26 weeks51+117%
2025-12-142026-06-07
Mix2490d
- Insider11(46%)
- SEC Filings7(29%)
- Other4(17%)
- Leadership1(4%)
- Dividends1(4%)
Latest news
25 items- SECWhite Mountains Insurance Group Ltd. filed SEC Form 8-K: Regulation FD Disclosure, Financial Statements and Exhibits8-K - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)
- INSIDERDirector Tanner David Allen was granted 135 shares, increasing direct ownership by 7% to 2,014 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERDirector Shank Suzanne F. was granted 135 shares, increasing direct ownership by 15% to 1,006 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERDirector Hicks Weston M was granted 190 shares, increasing direct ownership by 7% to 2,936 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERDirector Gelston Philip A was granted 135 shares, increasing direct ownership by 9% to 1,703 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERDirector Dillon Margaret was granted 135 shares, increasing direct ownership by 14% to 1,080 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERDirector Chu John was granted 135 shares, increasing direct ownership by 68% to 335 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERDirector Choksi Mary C was granted 135 shares, increasing direct ownership by 7% to 1,993 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERNew insider Chu John claimed ownership of 200 shares (SEC Form 3)3 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERDirector Carlson Peter M was granted 135 shares, increasing direct ownership by 19% to 852 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERDirector Campbell Reid Tarlton was granted 135 shares, increasing direct ownership by 1% to 10,575 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- SECWhite Mountains Insurance Group Ltd. filed SEC Form 8-K: Leadership Update, Submission of Matters to a Vote of Security Holders, Financial Statements and Exhibits8-K - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)
- PRWhite Mountains to Hold 2026 Annual Investor Information Meeting on June 5, 2026HAMILTON, Bermuda, May 18, 2026 White Mountains Insurance Group, Ltd. (NYSE:WTM) will hold its Annual Investor Information Meeting on: Date:Friday, 5 June, 2026Time: 10:00 a.m. (Eastern Time)Location: Mandarin Ballroom, 36th FloorMandarin Oriental Hotel80 Columbus Circle at 60th StreetNew York NY 10023Investors and other interested parties can participate either in person or via Webcast. Liam Caffrey, CEO, said, "We will discuss White Mountains's operations and our outlook for the Company. Following a short presentation, my partners and I will answer your questions." For your convenience we have also posted this announcement and the Webcast instructions on the Company's website at www.whi
- SECWhite Mountains Insurance Group Ltd. filed SEC Form 8-K: Entry into a Material Definitive Agreement, Creation of a Direct Financial Obligation, Financial Statements and Exhibits8-K - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)
- SECSEC Form 13F-HR filed by White Mountains Insurance Group Ltd.13F-HR - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)
- PRWHITE MOUNTAINS REPORTS FIRST QUARTER RESULTSHAMILTON, Bermuda, May 6, 2026 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE:WTM) reported book value per share of $2,170 as of March 31, 2026, a decrease of 1% for the first quarter of 2026, including dividends. Liam Caffrey, CEO, commented, "Book value per share ended the quarter at $2,170, down roughly 1% from year-end. Solid operating results were more than offset by a mark-to-market decline in our investment in MediaAlpha. Ark posted a 91% combined ratio and generated $1.1 billion of gross written premiums. Kudu grew adjusted EBITDA and produced a 12% return on equity on a trailing 12 months basis. HG Global assumed $8 million of gross written premiums and grew book value
- SECSEC Form 10-Q filed by White Mountains Insurance Group Ltd.10-Q - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)
- SECWhite Mountains Insurance Group Ltd. filed SEC Form 8-K: Results of Operations and Financial Condition, Financial Statements and Exhibits8-K - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)
- PRWHITE MOUNTAINS PARTNERS ANNOUNCES ACQUISITION OF HAWKEYE ELECTRIC BY ENTERPRISE SOLUTIONSNEW YORK, May 1, 2026 /PRNewswire/ -- White Mountains Partners ("WMP"), a White Mountains operating company, announced today that its portfolio company, Enterprise Electric, LLC d/b/a Enterprise Solutions ("Enterprise Solutions"), a provider of specialty electrical contracting services, has acquired Hawkeye Electric, LLC ("Hawkeye" or the "Company"). Founded in 1999 and headquartered in Chandler, Arizona, Hawkeye provides electrical system design, new construction, remodeling, and maintenance services for commercial and institutional properties. Hawkeye is led by Pat Tilton (Founder & CEO), Pete Trowbridge (President), and Mark Shaw (Vice President). Jim Seabury, Co-Founder, Chairman, and CE
- SECWhite Mountains Insurance Group Ltd. filed SEC Form 8-K: Other Events, Financial Statements and Exhibits8-K - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)
- PRWHITE MOUNTAINS PARTNERS ANNOUNCES ACQUISITION OF BASESIXNEW YORK, April 1, 2026 /PRNewswire/ -- White Mountains Partners ("WMP"), a White Mountains operating company, announced today that it has acquired a majority interest in BaseSix Systems LLC ("Basesix" or the "Company"), a provider of building systems integration and aftermarket service. Founded in 2018 and headquartered in Marietta, Georgia, Basesix provides the design, installation, retrofit, maintenance, and repair of mission critical, low voltage building systems for commercial and institutional customers across the fire & life safety, network & wireless, security & access control, and audio-visual disciplines. John Daly, White Mountains Partners' CEO and Managing Partner, said, "Bases
- SECSEC Form DEF 14A filed by White Mountains Insurance Group Ltd.DEF 14A - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)
- SECAmendment: SEC Form SCHEDULE 13G/A filed by White Mountains Insurance Group Ltd.SCHEDULE 13G/A - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Subject)
- INSIDERSEC Form 4 filed by Seelig Robert Lawrence4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
- INSIDERDirector Tanner David Allen gifted 225 shares, decreasing direct ownership by 11% to 1,879 units (SEC Form 4)4 - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Issuer)
WTM FAQ
6 questionsWhat does White Mountains Insurance Group Ltd. do?
White Mountains Insurance Group, Ltd., through its subsidiaries, provides insurance services in the United States. The company operates through HG Global/BAM, Ark, NSM, Kudu, and Other Operations segments. The HG Global/BAM segment provides insurance on municipal bonds issued to finance public purposes, such as schools, utilities, and transportation facilities, as well as reinsurance protection services. The Ark segment writes a portfolio of reinsurance and insurance, including property, accident and health, energy, marine, and political risks. The NSM segment operates as a general...Where does WTM stock trade?
White Mountains Insurance Group Ltd. (WTM) is listed on NYSE.What sector and industry is WTM in?
White Mountains Insurance Group Ltd. operates in the Finance sector, Property-Casualty Insurers industry.Does WTM pay a dividend?
WTM's most recent ex-dividend date was 2026-03-16 with a cash dividend of $1.00 per share. No future ex-date is on file yet.What companies are similar to WTM?
Notable peers in the same industry include CB (Chubb Limited), PGR (Progressive Corporation), TRV (The Travelers Companies Inc.), ALL (Allstate Corporation), HIG (The Hartford Insurance Group Inc.). Compare WTM side-by-side with any of them on Quantisnow.How can I track WTM on Quantisnow?
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