{"url_path":"/sec/wtm/8-k/2026-06-05/item-9-01","section_key":"item-9-01","section_title":"Item 9.01 Financial Statements and Exhibits.","topic":"sec","document":{"doc_type":"8-K","doc_date":"2026-06-05","source_url":"https://www.sec.gov/Archives/edgar/data/776867/0001628280-26-041051-index.html","accession_number":"0001628280-26-041051","cik":"0000776867","ticker":"WTM","issuer_name":"WHITE MOUNTAINS INSURANCE GROUP LTD","edgar_url":"https://www.sec.gov/Archives/edgar/data/776867/0001628280-26-041051-index.html","primary_entity_key":"0000776867","primary_entity_name":"WHITE MOUNTAINS INSURANCE GROUP LTD"},"word_count":95,"has_tables":true,"body_markdown":"ITEM 9.01    Financial Statements and Exhibits.\n\n(d) Exhibits. The following exhibit is furnished herewith:\n\nEXHIBIT INDEX\n\n[99.1 Investor Presentation dated June 5, 2026.](wtm8-k2026exhibit991.htm)\n\n104 Cover Page Interactive Data File (the cover page XBRL tags are embedded within the Inline XBRL document)\n\n2\n\nSIGNATURES\n\nPursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.\n\nWHITE MOUNTAINS INSURANCE GROUP, LTD.\n\nJune 5, 2026By:\n/s/   MICHAELA J. HILDRETH    \n\n       Michaela J. Hildreth\n\n      Managing Director and\n\n      Chief Accounting Officer\n\n3"}