White Mountains Insurance Group

WTM

White Mountains Insurance Group (NYSE: WTM) is a diversified insurance and related financial services holding company based in Hamilton, Bermuda. Redomiciled from Delaware, United States, on October 25, 1999, the company conducts most of its business through its insurance subsidiaries and other affi …

Insider trades and stock quote 2024-2026

All insider trades at White Mountains Insurance Group

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Date Type Insider Position Ø-Price Volume
12/19/2025 Sell Rountree, George Manning Chief Executive Officer $2,050.0 $10,250,000
12/19/2025 Sell Campbell, Reid Tarlton Director $1,025.0 $10,250,000
12/16/2025 Sell Gelston, Philip A. Director $2,048.5 $338,004
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