{"schema_version":"secwatch.filing_event.v1","accession":"0000950157-25-001042","form_type":"8-K","ticker":"MLM","cik":"0000916076","company_name":"MARTIN MARIETTA MATERIALS INC","filed_at":"2026-01-02T23:59:59+00:00","discovered_at":"2026-05-14T18:02:38.024746+00:00","generated_at":"2026-05-16T11:52:32.472327+00:00","sec_items":["7.01"],"event_type":"m_and_a","sentiment":"neutral","materiality_score":0.4,"confidence":"high","headline":"Martin Marietta delays Quikrete asset exchange close to Q1 2026 from Q4 2025","bullets":["Asset exchange with Quikrete Holdings, Inc., announced October 2, 2025, now expected to close in Q1 2026 (previously Q4 2025).","Delay attributed to remaining customary closing conditions; no change in transaction structure disclosed.","Martin Marietta will provide further updates as the transaction progresses."],"urls":{"canonical":"https://secwatch.observer/filing/0000950157-25-001042","json":"https://secwatch.observer/filing/0000950157-25-001042.json","markdown":"https://secwatch.observer/filing/0000950157-25-001042.md","text":"https://secwatch.observer/filing/0000950157-25-001042.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/916076/000095015725001042/0000950157-25-001042-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/916076/000095015725001042/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T11:52:32.472327+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"}