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About Giles Harrison

White Mountains Insurance Group Ltd reported in an 8-K filed September 2, 2025 that Giles Harrison was appointed President, effective January 1, 2026. White Mountains Insurance Group Ltd is classified in the Insurance - Property & Casualty industry within the Financial Services sector. Other leadership on record at White Mountains Insurance Group Ltd includes Liam Caffrey (CEO and Board Member), Weston M. Hicks (Chairman and Board Member), Liam P. Caffrey (CFO and Board Member) and 7 others.

“Giles Harrison, 57, will succeed Mr. Caffrey as President of the Company on January 1, 2026.”
White Mountains Insurance Group Ltd Form 8-K, filed September 2, 2025 · Read the filing

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