{"schema_version":"secwatch.filing_event.v1","accession":"0000947484-24-000055","form_type":"8-K","ticker":"ACGL","cik":"0000947484","company_name":"ARCH CAPITAL GROUP LTD.","filed_at":"2024-04-05T23:59:59+00:00","discovered_at":"2026-05-14T18:03:22.578677+00:00","generated_at":"2026-06-04T02:06:28.517556+00:00","sec_items":["1.01","7.01","9.01"],"event_type":"m_and_a","sentiment":"positive","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"Arch to acquire Allianz's U.S. MidCorp & Entertainment insurance businesses for $450M cash","bullets":["Purchase price of $450M cash; Arch estimates ~$1.4B capital requirement to support the business.","Acquired businesses wrote $1.7B gross premium in 2023, adding 500 employees.","Transaction builds Arch's U.S. middle-market presence; expected close H2 2024 subject to regulatory approvals.","Arch Insurance North America wrote ~$5.8B gross premium in 2023; double-digit growth 5 consecutive years."],"urls":{"canonical":"https://secwatch.observer/filing/0000947484-24-000055","json":"https://secwatch.observer/filing/0000947484-24-000055.json","markdown":"https://secwatch.observer/filing/0000947484-24-000055.md","text":"https://secwatch.observer/filing/0000947484-24-000055.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/947484/000094748424000055/0000947484-24-000055-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/947484/000094748424000055/acgl-20240405.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-04T02:06:28.517556+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"}