MLM: Financial results · Company disclosure

Item 2.02 Results of Operations and Financial Condition. On November 4, 2026, the Company announced financial results for the third quarter ended September 30, 2026. The press release, dated November 4, 2026, is furnished as Exhibit 99.1 to this report and is incorporated by reference herein. Item 7.01 Regulation FD Disclosure. On November 4, 2026, the Company announced financial results for the third quarter ended September 30, 2026. The press release, dated November 4, 2026, is furnished as Exhibit 99.1 to this report and is incorporated by reference herein. Additional information about the quarter, and the Company’s use of non-GAAP financial measures, is available on the Company’s website at www.martinmarietta.com by clicking the heading “Reports & Filings” in the “Investors” section and then clicking the quick link “Non-GAAP Measures”. The Company will host an online web simulcast of its third quarter 2026 earnings conference call on Wednesday, November 4, 2026. The live broadcast of the Company’s conference call will begin at 10:00 a.m., Eastern Time, on November 4, 2026 and can be accessed by dialing +1 (646) 307-1963 and using conference ID 9935145. An online replay will be available approximately two hours following the conclusion of the live broadcast and will remain available for one year. A link to these events will be available on the Company’s website at www.martinmarietta.com . Additional information about the Company’s use of non-GAAP financial measures, as well as certain other financial or statistical information the Company may present at the conference call, will be provided on the Company’s website. Item 9.01 Financial Statements and Exhibits. (d) Exhibits 99.1 Press Release dated November 4, 2026, announcing financial results for the third quarter e