RALEIGH, N.C., Nov. 13, 2025 (GLOBE NEWSWIRE) -- Martin Marietta Materials, Inc. (NYSE:MLM) ("Martin Marietta" or the "Company") today announced that its Board of Directors has declared a regular quarterly cash dividend of $0.83 per share on the Company's outstanding common stock. This dividend will be payable on December 31, 2025, to shareholders of record at the close of business on December 1, 2025.

Martin Marietta, a member of the S&P 500 Index, is an American-based company and a leading supplier of aggregates and heavy building materials. Through a network of operations spanning 28 states, Canada and The Bahamas, dedicated Martin Marietta teams supply the resources necessary for building the solid foundations on which our communities thrive. Martin Marietta's Specialties business provides high-purity magnesia and dolomitic lime products used worldwide in environmental, industrial, agricultural and specialty applications. For more information, visit www.martinmarietta.com or www.magnesiaspecialties.com.

Investor Contact:

Jacklyn Rooker

Vice President, Investor Relations

(919) 510-4736

Jacklyn.Rooker@martinmarietta.com

MLM-D

Martin Marietta Declares Quarterly Cash Dividend