{"filing":{"accession_number":"0001193125-26-341412","cik":"0000916076","ticker":"MLM","company_name":"MARTIN MARIETTA MATERIALS INC","form":"8-K","filing_date":"2026-08-10","report_date":"2026-08-10","primary_document":"d129878d8k.htm","primary_document_url":"https://www.sec.gov/Archives/edgar/data/916076/000119312526341412/d129878d8k.htm"},"events":[{"id":26439,"run_id":24031,"accession_number":"0001193125-26-341412","anchor_item_number":"8.01","event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"summary":"Martin Marietta Materials announced the receipt of all necessary regulatory approvals for its acquisition of Lhoist North America, Inc., with closing expected in Q3 2026. The filing discloses the Securities Sale Agreement dated June 27, 2026, and confirms regulatory approval as of August 5, 2026. This represents a material acquisition activity that would significantly affect a reasonable investor's assessment of the registrant's strategic direction and financial position.","company_name":"MARTIN MARIETTA MATERIALS INC","ticker":"MLM","filing_date":"2026-08-10","form":"8-K","submitted_at":null,"items":[{"id":27564,"accession_number":"0001193125-26-341412","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"Martin Marietta Materials announced the receipt of all necessary regulatory approvals for its acquisition of Lhoist North America, Inc., with closing expected in Q3 2026. The filing discloses the Securities Sale Agreement dated June 27, 2026, and confirms regulatory approval as of August 5, 2026. This represents a material acquisition activity that would significantly affect a reasonable investor's assessment of the registrant's strategic direction and financial position.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-10T13:09:39.030301+00:00","company_name":"","ticker":null,"filing_date":""}]}],"classifications":[{"id":27564,"accession_number":"0001193125-26-341412","item_number":"8.01","item_title":null,"event_type":"ma_activity","event_domain":"operational","is_material":true,"confidence":0.95,"reasoning":"Martin Marietta Materials announced the receipt of all necessary regulatory approvals for its acquisition of Lhoist North America, Inc., with closing expected in Q3 2026. The filing discloses the Securities Sale Agreement dated June 27, 2026, and confirms regulatory approval as of August 5, 2026. This represents a material acquisition activity that would significantly affect a reasonable investor's assessment of the registrant's strategic direction and financial position.","classifier_version":"claude-haiku-4-5-20251001+prompt-a85dd512","taxonomy_version":"v1.3","classified_at":"2026-08-10T13:09:39.030301+00:00","company_name":"MARTIN MARIETTA MATERIALS INC","ticker":"MLM","filing_date":"2026-08-10"}]}