{"schema_version":"secwatch.filing_event.v1","accession":"0001096343-25-000058","form_type":"8-K","ticker":"MKL","cik":"0001096343","company_name":"MARKEL GROUP INC.","filed_at":"2025-04-22T23:59:59+00:00","discovered_at":"2026-05-14T18:02:47.509295+00:00","generated_at":"2026-05-23T09:00:01.468537+00:00","sec_items":["7.01","9.01"],"event_type":"leadership","sentiment":"positive","materiality_score":0.6,"calibrated_materiality_score":0.6,"confidence":"high","headline":"Markel Insurance restructures US/Bermuda ops; names new division presidents and C-suite officers","bullets":["US and Bermuda operations split into two divisions: US Wholesale & Specialty (Wendy Houser, President) and Programs & Solutions (Alex Martin, President).","Andrew McMellin appointed President, International, succeeding Simon Wilson; he previously led International Wholesale (GWP +43%, underwriting profit +214%).","Glenn Harris named Chief Commercial Officer; Henry Gardener named Chief Risk Officer, effective immediately.","Changes follow Simon Wilson's March appointment as Markel Insurance CEO; part of long-term strategy to simplify and grow the business."],"urls":{"canonical":"https://secwatch.observer/filing/0001096343-25-000058","json":"https://secwatch.observer/filing/0001096343-25-000058.json","markdown":"https://secwatch.observer/filing/0001096343-25-000058.md","text":"https://secwatch.observer/filing/0001096343-25-000058.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1096343/000109634325000058/0001096343-25-000058-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1096343/000109634325000058/mkl-20250422.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-23T09:00:01.468537+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"}