X0306 4 2016-09-19 0000354190 GALLAGHER ARTHUR J & CO AJG 0001463048 English Frank E. Jr. ARTHUR J. GALLAGHER & CO. TWO PIERCE PLACE ITASCA IL 60143 1 Common Stock 2016-09-19 4 S 0 3000 49.60 D 10150 D /s/ Seth Diehl, by power of attorney 2016-09-20