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WHITE MOUNTAINS INSURANCE GROUP LTD — Investor Relations & Filings

Ticker · WTM ISIN · BMG9618E1075 LEI · 549300N3FL068JERBG02 US Financial and insurance activities
Filings indexed 1,038 across all filing types
Latest filing 2026-01-02 Director's Dealing
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
4 Filing
Director's Dealing
2026-01-02 English
4 Filing
Director's Dealing
2025-12-23 English
4 Filing
Director's Dealing
2025-12-22 English
4/A Filing
Director's Dealing
2025-12-22 English
SC TO-I/A Filing
M&A Activity Classification · 100% confidence The document is an Amendment No. 1 to Schedule TO, which is a Tender Offer Statement filed under the Securities Exchange Act of 1934. It relates to an issuer tender offer by White Mountains Insurance Group, Ltd. The document includes details about the tender offer, references to the original Schedule TO filing, and a press release announcing preliminary results of the offer. The Schedule TO and its amendments are filings related to tender offers and takeover bids, which fall under M&A activity filings. The document is not a full report like an annual or quarterly report, nor is it a simple announcement or certification. It is a regulatory filing specific to a tender offer transaction, which aligns with the M&A Activity (TAR) category.
2025-12-22 English
4 Filing
Director's Dealing
2025-12-22 English

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