{"schema_version":"secwatch.filing_event.v1","accession":"0000776867-25-000007","form_type":"8-K","ticker":"WTM","cik":"0000776867","company_name":"WHITE MOUNTAINS INSURANCE GROUP LTD","filed_at":"2025-05-22T23:59:59+00:00","discovered_at":"2026-05-14T18:02:51.242247+00:00","generated_at":"2026-05-20T19:41:43.070984+00:00","sec_items":["5.07"],"event_type":"other","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.15,"confidence":"high","headline":"White Mountains shareholders approve all proposals at 2025 AGM, elect directors","bullets":["Elected Class I directors Reid T. Campbell, Peter M. Carlson, Suzanne F. Shank to terms ending 2028.","Advisory vote on executive compensation passed with 98% support (2,089,683 for).","Amended and restated long-term incentive plan approved with 98% support (2,106,536 for).","Ratified PwC as independent auditor for 2025 with 96.8% support (2,337,137 for)."],"urls":{"canonical":"https://secwatch.observer/filing/0000776867-25-000007","json":"https://secwatch.observer/filing/0000776867-25-000007.json","markdown":"https://secwatch.observer/filing/0000776867-25-000007.md","text":"https://secwatch.observer/filing/0000776867-25-000007.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/776867/000077686725000007/0000776867-25-000007-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/776867/000077686725000007/wtm-20250522.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-20T19:41:43.070984+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"}