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WHITE MOUNTAINS INSURANCE GROUP LTD (WTM) SEC Filings | Global Financial Data

WHITE MOUNTAINS INSURANCE GROUP LTD

WTMSEC EDGAR

Fire, Marine & Casualty Insurance(D0)CIK: 776867

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Mar 5, 2026 | Report: Mar 4, 2026

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Feb 27, 2026 | Report: Feb 25, 2026

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Feb 27, 2026 | Report: Feb 25, 2026

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Feb 27, 2026 | Report: Feb 25, 2026

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Feb 27, 2026 | Report: Feb 25, 2026

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Feb 27, 2026 | Report: Feb 25, 2026

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10-K

Filed: Feb 27, 2026 | Report: Dec 31, 2025

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8-K

Filed: Feb 26, 2026 | Report: Feb 26, 2026

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13F-HR

Filed: Feb 12, 2026 | Report: Dec 31, 2025

Filed: Feb 6, 2026 | Report: Feb 6, 2026

Filed: Jan 7, 2026 | Report: Jan 7, 2026

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Jan 5, 2026 | Report: Jan 1, 2026

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Jan 2, 2026 | Report: Jan 1, 2026

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INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Jan 2, 2026 | Report: Jan 1, 2026

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Jan 2, 2026 | Report: Jan 1, 2026

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Jan 2, 2026 | Report: Jan 1, 2026

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Dec 23, 2025 | Report: Dec 23, 2025

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4/A

AMENDED STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Dec 22, 2025 | Report: Dec 19, 2025

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Dec 22, 2025 | Report: Dec 19, 2025

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Dec 22, 2025 | Report: Dec 19, 2025

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Dec 16, 2025 | Report: Dec 16, 2025

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8-K

Filed: Dec 8, 2025 | Report: Dec 5, 2025

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Nov 26, 2025 | Report: Nov 25, 2025

Filed: Nov 13, 2025 | Report: Sep 30, 2025

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: Nov 10, 2025 | Report: Nov 10, 2025

Filed: Nov 6, 2025 | Report: Sep 30, 2025

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8-K

Filed: Nov 6, 2025 | Report: Nov 6, 2025

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8-K

Filed: Oct 3, 2025 | Report: Oct 2, 2025

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8-K

Filed: Sep 3, 2025 | Report: Sep 2, 2025

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8-K

Filed: Sep 2, 2025 | Report: Sep 2, 2025

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N-PX

Filed: Aug 27, 2025 | Report: Jun 30, 2025

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13F-HR

Filed: Aug 11, 2025 | Report: Jun 30, 2025

Filed: Aug 7, 2025 | Report: Jun 30, 2025

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8-K

Filed: Aug 7, 2025 | Report: Aug 7, 2025

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8-K

Filed: Jul 18, 2025 | Report: Jul 18, 2025

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8-K

Filed: Jul 16, 2025 | Report: Jul 16, 2025

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11-K

Filed: Jul 7, 2025 | Report: Dec 31, 2024

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8-K

Filed: Jul 7, 2025 | Report: Jul 4, 2025

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8-K

Filed: Jun 6, 2025 | Report: Jun 6, 2025

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: May 27, 2025 | Report: May 22, 2025

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: May 23, 2025 | Report: May 22, 2025

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STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed: May 23, 2025 | Report: May 22, 2025

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