X0304 4 2012-03-01 0000354190 GALLAGHER ARTHUR J & CO AJG 0001185998 CARY RICHARD C ARTHUR J. GALLAGHER & CO. TWO PIERCE PLACE ITASCA IL 60143 1 Controller, CAO Common Stock 2012-03-01 4 M 0 9300 22.70 A 35776.881 D Common Stock 2012-03-01 4 S 0 9300 34.54 D 26476.881 D Common Stock 22678 I By Trust Common Stock (restricted) 2885 D Non-qualified Stock Option 22.70 2012-03-01 4 M 0 9300 0 D 2012-07-21 Common Stock 9300 0 D The stock option becomes exercisable 10% each year, commencing January 1 after the date of grant. The price reported is an average weighted price. The shares were sold in multiple transactions at prices ranging from $34.30 to $34.65. The reporting person will provide to the Securities and Exchange Commission staff, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. /s/ Richard C. Cary 2012-03-02