{"schema_version":"secwatch.filing_event.v1","accession":"0000950157-24-001472","form_type":"8-K","ticker":"MLM","cik":"0000916076","company_name":"MARTIN MARIETTA MATERIALS INC","filed_at":"2024-11-04T23:59:59+00:00","discovered_at":"2026-05-14T18:03:11.378662+00:00","generated_at":"2026-05-30T06:44:26.579395+00:00","sec_items":["1.01","2.03","8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.55,"calibrated_materiality_score":0.55,"confidence":"high","headline":"Martin Marietta issues $1.5B in senior notes (5.150% due 2034, 5.500% due 2054)","bullets":["Issued $750M of 5.150% Senior Notes due 2034 and $750M of 5.500% Senior Notes due 2054.","Net proceeds used to repay revolver and securitization borrowings; remainder for general corporate purposes.","Notes are senior unsecured, rank equally with existing senior debt, effectively subordinated to secured debt and subsidiary liabilities.","Optional redemption: make-whole +15bps (2034) or +20bps (2054) prior to Par Call Date; thereafter at par.","Change of control triggers repurchase at 101% of principal plus accrued interest."],"urls":{"canonical":"https://secwatch.observer/filing/0000950157-24-001472","json":"https://secwatch.observer/filing/0000950157-24-001472.json","markdown":"https://secwatch.observer/filing/0000950157-24-001472.md","text":"https://secwatch.observer/filing/0000950157-24-001472.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/916076/000095015724001472/0000950157-24-001472-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/916076/000095015724001472/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-30T06:44:26.579395+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"}