: Martin Marietta board hikes dividend by 12%

Martin Marietta Materials Inc. MLM said Thursday its board approved a 12% hike to its dividend. The building-materials supplier said the board raised the quarterly dividend to 74 cents a share from 66 cents a share. The increased dividend is payable Sept. 29 to shareholders of record Sept. 1. Martin Marietta shares were last up 1.4% in Thursday trading.

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