 RALEIGH, N.C., Aug. 12, 2021 GLOBE NEWSWIRE -- Martin Marietta Materials, Inc. NYSE: MLM Martin Marietta or the Company today announced that its Board of Directors approved a 7 percent increase in its quarterly cash dividend, raising it from 0.57 per share to 0.61 per share on the Companys outstanding common stock. This dividend, which represents a cash dividend of 2.44 per share on an annualized basis, is payable September 30, 2021, to shareholders of record at the close of business on September 1, 2021. 