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WTMNYSEFire, Marine & Casualty InsuranceFiscal year ends December 31

WHITE MOUNTAINS INSURANCE GROUP LTD

Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026
$2167.12+6.81 (+0.32%)

Close on Oct 19, 2026

Market cap
$5.22B
P/E (TTM)
4.9
Dividend yield
0.05%

SEC filings

40 of White Mountains Insurance's most recent filings on SEC EDGAR

DocumentFormPeriodFiledSource
Current report8-KAug 26, 2026Aug 27, 2026SEC EDGAR
Quarterly report10-QJun 30, 2026Aug 6, 2026SEC EDGAR
Current report8-KAug 6, 2026Aug 6, 2026SEC EDGAR
Current report8-KJun 5, 2026Jun 5, 2026SEC EDGAR
Current report8-KMay 21, 2026May 21, 2026SEC EDGAR
Current report8-KMay 14, 2026May 15, 2026SEC EDGAR
Quarterly report10-QMar 31, 2026May 6, 2026SEC EDGAR
Current report8-KMay 6, 2026May 6, 2026SEC EDGAR
Current report8-KApr 1, 2026Apr 1, 2026SEC EDGAR
Proxy statementDEF 14AMay 21, 2026Apr 1, 2026SEC EDGAR
Annual report10-KDec 31, 2025Feb 27, 2026SEC EDGAR
Current report8-KFeb 26, 2026Feb 26, 2026SEC EDGAR
Current report8-KFeb 6, 2026Feb 6, 2026SEC EDGAR
Current report8-KJan 7, 2026Jan 7, 2026SEC EDGAR
Current report8-KDec 5, 2025Dec 8, 2025SEC EDGAR
Quarterly report10-QSep 30, 2025Nov 6, 2025SEC EDGAR
Current report8-KNov 6, 2025Nov 6, 2025SEC EDGAR
Current report8-KOct 2, 2025Oct 3, 2025SEC EDGAR
Current report8-KSep 2, 2025Sep 3, 2025SEC EDGAR
Current report8-KSep 2, 2025Sep 2, 2025SEC EDGAR
Quarterly report10-QJun 30, 2025Aug 7, 2025SEC EDGAR
Current report8-KAug 7, 2025Aug 7, 2025SEC EDGAR
Current report8-KJul 18, 2025Jul 18, 2025SEC EDGAR
Current report8-KJul 16, 2025Jul 16, 2025SEC EDGAR
Current report8-KJul 4, 2025Jul 7, 2025SEC EDGAR
Current report8-KJun 6, 2025Jun 6, 2025SEC EDGAR
Current report8-KMay 22, 2025May 22, 2025SEC EDGAR
Quarterly report10-QMar 31, 2025May 7, 2025SEC EDGAR
Current report8-KMay 7, 2025May 7, 2025SEC EDGAR
Current report8-KApr 10, 2025Apr 10, 2025SEC EDGAR
Proxy statementDEF 14AMay 22, 2025Apr 2, 2025SEC EDGAR
Annual report10-KDec 31, 2024Feb 28, 2025SEC EDGAR
Current report8-KFeb 7, 2025Feb 7, 2025SEC EDGAR
Current report8-KJan 8, 2025Jan 8, 2025SEC EDGAR
Quarterly report10-QSep 30, 2024Nov 6, 2024SEC EDGAR
Current report8-KNov 6, 2024Nov 6, 2024SEC EDGAR
Quarterly report10-QJun 30, 2024Aug 7, 2024SEC EDGAR
Current report8-KAug 7, 2024Aug 7, 2024SEC EDGAR
Current report8-KJun 7, 2024Jun 7, 2024SEC EDGAR
Current report8-KMay 23, 2024May 23, 2024SEC EDGAR