{"schema_version":"secwatch.filing_event.v1","accession":"0000950170-24-107631","form_type":"8-K","ticker":"MLM","cik":"0000916076","company_name":"MARTIN MARIETTA MATERIALS INC","filed_at":"2024-09-18T23:59:59+00:00","discovered_at":"2026-05-14T18:03:16.339207+00:00","generated_at":"2026-05-31T04:08:01.704865+00:00","sec_items":["1.04"],"event_type":"regulatory","sentiment":"negative","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Martin Marietta receives MSHA 107(a) order at North Indianapolis Quarry for unsafe work practice","bullets":["On Sept 12, 2024, MSHA issued a section 107(a) order after a miner stood on the motor of an elevated screen deck, exposing a fatal fall risk.","No injuries occurred; corrective action was taken promptly and the order has been terminated.","The incident happened at the North Indianapolis Quarry in Indianapolis, Indiana."],"urls":{"canonical":"https://secwatch.observer/filing/0000950170-24-107631","json":"https://secwatch.observer/filing/0000950170-24-107631.json","markdown":"https://secwatch.observer/filing/0000950170-24-107631.md","text":"https://secwatch.observer/filing/0000950170-24-107631.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/916076/000095017024107631/0000950170-24-107631-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/916076/000095017024107631/mlm-20240912.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-05-31T04:08:01.704865+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"}