{"schema_version":"secwatch.filing_event.v1","accession":"0000950157-23-000383","form_type":"8-K","ticker":"MLM","cik":"0000916076","company_name":"MARTIN MARIETTA MATERIALS INC","filed_at":"2023-04-21T23:59:59+00:00","discovered_at":"2026-05-14T18:03:42.792136+00:00","generated_at":"2026-06-16T22:00:45.364429+00:00","sec_items":["5.02"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.4,"calibrated_materiality_score":0.4,"confidence":"high","headline":"Martin Marietta CIO John P. Mohr to retire in H2 2023","bullets":["SVP and CIO John P. Mohr will retire in the second half of 2023.","No replacement or exact retirement date has been announced.","Mohr's departure is described as a retirement, not an abrupt resignation."],"urls":{"canonical":"https://secwatch.observer/filing/0000950157-23-000383","json":"https://secwatch.observer/filing/0000950157-23-000383.json","markdown":"https://secwatch.observer/filing/0000950157-23-000383.md","text":"https://secwatch.observer/filing/0000950157-23-000383.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/916076/000095015723000383/0000950157-23-000383-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/916076/000095015723000383/form8-k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-16T22:00:45.364429+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":[{"claim_id":"332157f900","claim":"John P. Mohr departed as Senior Vice President and Chief Information Officer at MARTIN MARIETTA MATERIALS INC.","evidence_excerpt":"On April 21, 2023, Martin Marietta Materials, Inc. (the “Company”) announced that John P. Mohr, Senior Vice President and Chief Information Officer will be retiring from the Company in the second half of 2023.","evidence_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/916076/000095015723000383/0000950157-23-000383-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"retiring"},{"label":"Role","value":"Senior Vice President and Chief Information Officer"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}