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WHITE MOUNTAINS INSURANCE GROUP LTD — Investor Relations & Filings

Ticker · WTM ISIN · BMG9618E1075 LEI · 549300N3FL068JERBG02 US Financial and insurance activities
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Filings indexed 1,038 across all filing types
Latest filing 2026-06-05 Investor Presentation
Country BM Bermuda
Listing US WTM

About WHITE MOUNTAINS INSURANCE GROUP LTD

https://www.whitemountains.com/

White Mountains Insurance Group is a holding company that acquires and manages businesses and assets within the insurance and related financial services sectors. The company's strategy focuses on opportunistic, value-oriented acquisitions and patient, long-term investment. It utilizes a permanent capital base to provide enduring support and build partnerships with the owners and management teams of its portfolio companies. Through its subsidiaries, the company's operations include property and casualty insurance and reinsurance, municipal bond insurance, and providing capital solutions for asset and wealth management firms.

Recent filings

Filing Released Lang Actions
8-K
Investor Presentation Classification · 88% confidence The provided text is a Current Report on Form 8-K whose sole substantive content is that it furnishes an investor slide deck as Exhibit 99.1 (the registrant’s presentation at its Annual Investor Information Meeting). Under our taxonomy, detailed presentations for investors are classified as “Investor Presentation” (IP). This is not just a bare announcement of a forthcoming report (RPA) nor a general catch-all regulatory notice (RNS) but the mechanism by which the investor presentation itself is delivered.
2026-06-05 English
8-K
Declaration of Voting Results & Voting Rights Announcements Classification · 90% confidence The document is a Form 8-K current report primarily disclosing two Items: (1) departure of a director (Item 5.02) and (2) Submission of Matters to a Vote of Security Holders (Item 5.07). The vote tabulations for proposals at the 2026 Annual Meeting clearly constitute an official shareholder vote result announcement, matching the Definition for Declaration of Voting Results & Voting Rights Announcements (Code: DVA).
2026-05-21 English
8-K
Capital/Financing Update Classification · 90% confidence The document is a US SEC Form 8-K describing the completion of a private placement of $200 million senior secured notes, the terms of the new notes, and the use of proceeds to refinance existing debt. This is a direct announcement of a financing transaction and capital structure change rather than a full report, management commentary, or proxy material. It fits squarely into the Capital/Financing Update category (CAP).
2026-05-15 English
Regulatory Filings 2026
Regulatory Filings
2026-05-12 English
Major Shareholding Notification 2026
Major Shareholding Notification
2026-05-07 English
10-Q - WHITE MOUNTAINS INSURANCE GROUP LTD (0000776867) (Filer)
Interim / Quarterly Report Q1 2026
2026-05-06 English

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