{"schema_version":"secwatch.filing_event.v1","accession":"0000776867-25-000008","form_type":"8-K","ticker":"WTM","cik":"0000776867","company_name":"WHITE MOUNTAINS INSURANCE GROUP LTD","filed_at":"2025-06-06T23:59:59+00:00","discovered_at":"2026-05-14T18:02:51.242585+00:00","generated_at":"2026-05-19T19:09:57.320811+00:00","sec_items":["7.01","9.01"],"event_type":"other","sentiment":"neutral","materiality_score":0.2,"calibrated_materiality_score":0.2,"confidence":"low","headline":"White Mountains files investor presentation for annual meeting; no specifics in exhibit text","bullets":["White Mountains held its Annual Investor Information Meeting on June 6, 2025.","Exhibit 99.1 is titled '2025 Annual Investor Presentation'; full content not included in filing excerpt.","No new financial data, guidance, or strategic updates are discernible from the provided text alone.","Investors should consult the full presentation for any material disclosures."],"urls":{"canonical":"https://secwatch.observer/filing/0000776867-25-000008","json":"https://secwatch.observer/filing/0000776867-25-000008.json","markdown":"https://secwatch.observer/filing/0000776867-25-000008.md","text":"https://secwatch.observer/filing/0000776867-25-000008.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/776867/000077686725000008/0000776867-25-000008-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/776867/000077686725000008/wtm-20250606.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-19T19:09:57.320811+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}