{"schema_version":"secwatch.filing_event.v1","accession":"0000947484-23-000117","form_type":"8-K","ticker":"ACGL","cik":"0000947484","company_name":"ARCH CAPITAL GROUP LTD.","filed_at":"2023-11-20T23:59:59+00:00","discovered_at":"2026-05-14T18:03:32.484164+00:00","generated_at":"2026-06-07T23:44:07.252965+00:00","sec_items":["7.01"],"event_type":"other_material","sentiment":"negative","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Arch Capital subsidiaries terminate $1.7B Bellemeade mortgage reinsurance agreements due to S&P criteria change","bullets":["Arch Mortgage and United Guaranty terminated eight Bellemeade excess-of-loss reinsurance agreements, effective Dec 27, 2023.","Terminated agreements represent $1.7B limit of total $3.2B coverage from all mortgage insurance-linked note vehicles.","Termination driven by S&P Insurer Risk-Based Capital Adequacy criteria change effective Nov 15, 2023 reducing capital relief.","Remaining Bellemeade reinsurance agreements unaffected and continue under their terms."],"urls":{"canonical":"https://secwatch.observer/filing/0000947484-23-000117","json":"https://secwatch.observer/filing/0000947484-23-000117.json","markdown":"https://secwatch.observer/filing/0000947484-23-000117.md","text":"https://secwatch.observer/filing/0000947484-23-000117.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/947484/000094748423000117/0000947484-23-000117-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/947484/000094748423000117/acgl-20231117.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-07T23:44:07.252965+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"}