White Mountains Insurance

WTM

Market cap $5.11B

HAMILTON, Bermuda, May 18, 2026 White Mountains Insurance Group, Ltd. (NYSE: WTM) will hold its Annual Investor Information Meeting on: Date: Friday, 5 June, 2026 Time:  10:00 a.m.

HAMILTON, 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.

NEW 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.

NEW 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.

The oil shock from the war in Iran has reached critical levels, and it now appears that prices over $100 per barrel are here to stay for at least the time being.

The Touchstone Small Cap Fund (Class A Shares, Load Waived) outperformed its benchmark, the Russell 2000® Index, for the quarter ended December 31, 2025. The best performing stocks based on relative performance vs. the benchmark during the quarter included White Mountains Insurance Group, Revolve Group Inc. and Haemonetics Corp. The more challenged positions based on relative performance during the quarter included NewMarket Corp., Certara Inc., and Gates Industrial Corp plc.

NEW YORK, Feb. 26, 2026 (GLOBE NEWSWIRE) -- Bishop Street Underwriters (“Bishop Street”), a RedBird Capital Partners portfolio company, today announced that it has completed a strategic structured capital investment of $125 million by White Mountains Insurance Group, Ltd. (“White Mountains”) (NYSE: WTM).

The London Company Small Cap portfolio increased 2.7% (2.5% net) during the quarter vs. a 2.2% increase in the Russell 2000 Index. Contributors to relative performance were White Mountains Insurance Group Ltd, Revolve Group Inc. and Haemonetics Corporation. Detractors from relative performance were NewMarket Corporation, Certara, Inc. and Gates Industrial Corporation plc.

HAMILTON, Bermuda, Feb. 6, 2026 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported book value per share of $2,188 as of December 31, 2025, an increase of 18% for the fourth quarter of 2025 and 25% for the year ended December 31, 2025, including dividends.

HAMILTON, Bermuda , Dec. 24, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) announced today the final results of its "modified Dutch auction" tender offer.