FORM 13F HOLDINGS REPORT

Company

Arthur J. Gallagher & Co.

Filed

May 11, 2012

Period of Report

March 31, 2012

Accession Number

0001167966-12-000108

A 13F is a quarterly report filed by institutional investment managers with over $100M in assets, disclosing their equity holdings. Learn more about 13F-HR filings →