Live feed16:25:53·168dINSIDERFilingvia QuantisnowSVP, Controller & CAO Cardin Robert J covered exercise/tax liability with 32 shares, decreasing direct ownership by 0.29% to 11,066 units (SEC Form 4)ByQuantisnow·Wall Street's wire, on your screen.MLM· Martin Marietta Materials Inc.IndustrialsOriginal source