MLM: Leadership change

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On May 14, 2026, the shareholders of Martin Marietta Materials, Inc. (the “Company”) voted to approve the Martin Marietta Amended and Restated Stock-Based Award Plan (the “Plan”). A description of the Plan is included as Appendix C in the Company’s definitive proxy statement for the annual meeting of shareholders held on May 14, 2026, filed with the Securities and Exchange Commission on April 15, 2026 (the "Proxy Statement"), which description is incorporated herein by reference. Item 5.07 Submission of Matters to a Vote of Security Holders. Martin Marietta Materials, Inc. held its Annual Meeting of Shareholders on May 14, 2026. Of the 60,256,208 shares outstanding and entitled to vote, 54,913,555 shares were represented at the meeting, or a 91% quorum. The final results of voting for each matter submitted to a vote of shareholders at the meeting are as follows: Proposal 1 – Election of Directors Elected the following ten individuals to the Board of Directors to serve as directors for a term of one year until the Annual Meeting of Shareholders in 2027, and until their successors have been duly elected and qualified : Votes Cast For Votes Against Votes Abstained Broker Non-Votes Dorothy M. Ables 50,202,739 2,225,718 64,483 2,420,615 Gayla J. Delly 52,391,823 71,523 29,594 2,420,615 Anthony R. Foxx 52,247,028 215,584 30,328 2,420,615 Martin J. Lyons, Jr. 52,384,015 77,582 31,343 2,420,615 Mary T. Mack 52,176,430 260,609 55,901 2,420,615 C. Howard Nye 51,106,958 1,362,836 23,146 2,420,615 Laree E. Perez 51,548,634 917,215 27,091 2,420,615 Thomas H. Pike 52,203,337 266,066 23,537 2,420,615 Donald W. Slager 51,997,780 46