News & Events

Results of Operations and Financial Condition. On April 30, 2026, the Company announced financial results for the first quarter ended March 31, 2026. The press release, dated April 30, 2026, is furnished as Exhibit 99.1 to this report and is incorporated by reference herein.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On April 27, 2026, Martin Marietta Materials, Inc. (the “Company”) announced that the Company has appointed Christopher W. Samborski, to serve as the Company’s Executive Vice President and Chief Operating Officer, effective as of May 1, 2026 (the “Effective Date”). Mr. Samborski, age 45, joined the Company in August 2018 and currently serves as Pre…

COMPLETION OF ACQUISITION OR DISPOSITION OF ASSETS On February 23, 2026, pursuant to the Equity and Asset Exchange Agreement, dated as of August 3, 2025 (the “ Exchange Agreement ”), by and between Martin Marietta Materials, Inc., a North Carolina corporation (“ Martin Marietta ”), and Quikrete Holdings, Inc., a Delaware corporation (“ Quikrete ”), (a) Martin Marietta transferred to Quikrete Martin Marietta’s assets primarily related to its cement and ready-mix concrete operations at its Midl…

Results of Operations and Financial Condition. On February 11, 2026, the Company announced financial results for the fourth quarter and year ended December 31, 2025. The press release, dated February 11, 2026, is furnished as Exhibit 99.1 to this report and is incorporated by reference herein.

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. Martin Marietta Materials, Inc. (the “Company”) announced that, on December 2, 2024, Roselyn R. Bar, Executive Vice President, General Counsel and Corporate Secretary, informed the Company of her decision to retire from the Company in the second half of 2025. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the regist…

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. 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. SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on i…

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On December 12, 2022, Martin Marietta Materials, Inc. (the “Company”) announced that Craig La Torre, Senior Vice President and Chief Human Resource Officer will be retiring from the Company in the second half of 2023. Mr. La Torre will be succeeded by Kelly Bennett, the Company’s current Vice President of Total Rewards and Head of Inclusion and Eng…

Other Events. On September 29, 2022, the Company satisfied and discharged its 0.650% Senior Notes due 2023 (the “Notes”). In connection with the satisfaction and discharge, the Company irrevocably deposited with the Trustee funds in an amount sufficient to satisfy all remaining principal and interest payments on the Notes. Holders of Notes will receive payment of principal on the scheduled maturity date of the Notes and payment of interest at the per annum rate (and on the dates) set forth in…

Termination of a Material Definitive Agreement. The information set forth in