HAMILTON, Bermuda , Dec. 8, 2025 /PRNewswire/ -- White Mountains Insurance Group, Ltd. (NYSE: WTM) ("White Mountains") announced today that it has completed the sale of a controlling interest in Bamboo to affiliates of funds advised by CVC Capital Partners ("CVC").  White Mountains continues to retain an approximately 15% fully-diluted equity stake in Bamboo.

Contact:
Rob Seelig
+1 (603) 640-2212
ir@whitemountains.com

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SOURCE White Mountains Insurance Group, Ltd.