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"...
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...
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. The tender offer...
HAMILTON, Bermuda , Dec. 22, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) announced today the preliminary results of its "modified Dutch auction" tender offer to purchase...
HAMILTON, Bermuda , Nov. 21, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) announced today that it has commenced a "modified Dutch auction" self-tender offer to purchase...
HAMILTON, Bermuda , Nov. 6, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) reported book value per share of $1,851 as of September 30, 2025, an increase of 3% for the third...
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HAMILTON, Bermuda , Oct. 3, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) ("White Mountains") announced today that it has signed a definitive agreement to sell a controlling...