Martin Marietta Materials, Inc. (NYSE:MLM) ("Martin Marietta" or the "Company") today announced that its Board of Directors approved an increase in its quarterly cash dividend, raising it from $0.83 per share to $0.84 per share on the Company’s outstanding common stock. This dividend, representing a cash dividend of $3.36 per share on an annualized basis, is payable September 30, 2026, to shareholders of record at the close of business on September 1, 2026.