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White Mountains Insurance Group Ltd (WTM)

White Mountains Insurance Group Ltd is engaged in the business of making opportunistic and value-oriented acquisitions of businesses and assets in the insurance, financial services, and related sectors, operating these businesses and assets through its subsidiaries and, if and when attractive exit valuations become available, disposing of these businesses and assets. The company conducts its business in five areas: property and casualty insurance and reinsurance, municipal bond reinsurance, capital solutions for asset and wealth management firms, property and casualty insurance distribution, and other operations. The company has four reportable segments: Ark/WM Outrigger, HG Global, Kudu and Distinguished.

Quote snapshot

$2,128.40
Daily change: —
ExchangeNYSE
Updated2026-05-09T03:41:56.5386Z

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SEC filings

Latest 10-K filing table

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