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U.S. COMPANY FILING

CURRENT REPORT

Filed: 2026-08-05Company: MARTIN MARIETTA MATERIALS INCTicker: MLMExchange: NYSEForm: 8-KReport period: 2026-08-05SEC accession: 0000950157-26-000850Event: maMateriality: 85

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Martin Marietta Materials announced in an 8-K filed on August 5, 2026, that it has received all necessary regulatory approvals for its acquisition of Lhoist North America. The $13.5 billion cash-and-stock transaction is expected to close in Q3 2026, subject to customary closing conditions.

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Official SEC filing2026-08-0510-Q2026-07-30 · 10-Q8-K2026-07-30 · 8-KCURRENT REPORT2026-06-29 · 8-KCURRENT REPORT2026-06-29 · 8-K10-Q2026-04-30 · 10-Q8-K2026-04-30 · 8-K