Live feed12:41:47·98dINSIDERFilingvia QuantisnowChairman, Pres & CEO Nye C Howard covered exercise/tax liability with 3,026 shares, decreasing direct ownership by 2% to 170,119 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MLM· Martin Marietta Materials Inc.IndustrialsOriginal source