{"schema_version":"secwatch.filing_event.v1","accession":"0000950157-25-001013","form_type":"8-K","ticker":"MLM","cik":"0000916076","company_name":"MARTIN MARIETTA MATERIALS INC","filed_at":"2025-12-19T23:59:59+00:00","discovered_at":"2026-05-14T18:02:42.594115+00:00","generated_at":"2026-05-16T12:41:18.160323+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.25,"confidence":"high","headline":"Martin Marietta extends $800M revolver maturity to Dec 21, 2030","bullets":["Extended $800M unsecured revolver maturity from Dec 2029 to Dec 2030 via Loan Modification No. 4.","Consent fee of 0.02% of commitment paid to extending lenders; facility size unchanged.","Amendment effective Dec 19, 2025; all existing lenders extended their commitments.","No changes to financial covenants, interest rate margins, or facility terms beyond maturity."],"urls":{"canonical":"https://secwatch.observer/filing/0000950157-25-001013","json":"https://secwatch.observer/filing/0000950157-25-001013.json","markdown":"https://secwatch.observer/filing/0000950157-25-001013.md","text":"https://secwatch.observer/filing/0000950157-25-001013.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/916076/000095015725001013/0000950157-25-001013-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/916076/000095015725001013/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-16T12:41:18.160323+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"}