{"schema_version":"secwatch.filing_event.v1","accession":"0000776867-22-000014","form_type":"8-K","ticker":"WTM","cik":"0000776867","company_name":"WHITE MOUNTAINS INSURANCE GROUP LTD","filed_at":"2022-08-08T23:59:59+00:00","discovered_at":"2026-05-14T18:03:58.136337+00:00","generated_at":"2026-06-24T03:05:41.017399+00:00","sec_items":["2.02","9.01"],"event_type":"earnings","sentiment":"neutral","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"White Mountains Q2 comprehensive loss of $174M; closes NSM sale adding ~$300 per share to book value","bullets":["Comprehensive loss attributable to common shareholders of $174M in Q2 2022 vs. $139M gain in Q2 2021.","Closed sale of NSM to Carlyle on Aug 1; estimated net gain of $300 per share, pro forma ABVPS ~$1,452.","BAM insured record par of $5.9B in Q2; Ark gross written premiums up 23% YoY, GAAP combined ratio 87%.","MediaAlpha investment value fell to $167M (from $280M at Q1 end), contributing $114M unrealized loss.","Repurchased 53,100 shares for $63M in Q2 at avg $1,179.96; undeployed capital ~$1.6B after NSM sale."],"urls":{"canonical":"https://secwatch.observer/filing/0000776867-22-000014","json":"https://secwatch.observer/filing/0000776867-22-000014.json","markdown":"https://secwatch.observer/filing/0000776867-22-000014.md","text":"https://secwatch.observer/filing/0000776867-22-000014.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/776867/000077686722000014/0000776867-22-000014-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/776867/000077686722000014/wtm8-kq22022earningsrelease.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-24T03:05:41.017399+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"}