{"schema_version":"secwatch.filing_event.v1","accession":"0000950157-22-001348","form_type":"8-K","ticker":"MLM","cik":"0000916076","company_name":"MARTIN MARIETTA MATERIALS INC","filed_at":"2022-12-22T23:59:59+00:00","discovered_at":"2026-05-14T18:03:54.030213+00:00","generated_at":"2026-06-21T00:32:31.985622+00:00","sec_items":["1.01","2.03","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.25,"calibrated_materiality_score":0.25,"confidence":"high","headline":"Martin Marietta extends $800M revolver maturity to Dec 2027; transitions to SOFR","bullets":["Maturity extended one year from Dec 2026 to Dec 21, 2027 for $800M unsecured revolver.","Interest rate benchmark replaced LIBOR with Adjusted Daily Simple SOFR plus 0.10%.","Consent fee of 0.02% of extended commitments paid to each Extending Lender.","Amendment effective December 22, 2022; all existing lenders participated as Extending Lenders."],"urls":{"canonical":"https://secwatch.observer/filing/0000950157-22-001348","json":"https://secwatch.observer/filing/0000950157-22-001348.json","markdown":"https://secwatch.observer/filing/0000950157-22-001348.md","text":"https://secwatch.observer/filing/0000950157-22-001348.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/916076/000095015722001348/0000950157-22-001348-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/916076/000095015722001348/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-21T00:32:31.985622+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"}