19,000,000 Shares ARTHUR J. GALLAGHER & CO. COMMON STOCK (PAR VALUE $1.00 PER SHARE) UNDERWRITING AGREEMENTUnderwriting Agreement • April 16th, 2014 • Gallagher Arthur J & Co • Insurance agents, brokers & service • New York
Copies of the final prospectus and prospectus supplement relating to the shares of common stock offered in this offering may be obtained by contacting Morgan Stanley & Co. LLC, c/o Prospectus Department, 180 Varick Street 2/F, New York, NY 10014 or by email at prospectus@morganstanley.com.
