Christopher Miskel's Acquisition of Arthur J. Gallagher & Co. Common Stock

Christopher Miskel, a director at Arthur J. Gallagher & Co., acquired 152.672 shares of common stock on September 1, 2026, at a price of $262.0 per share. This acquisition, valued at approximately $39,999.10, was part of Miskel's election to defer his annual cash retainer into deferred share units, as per the Company's Director Deferral Plan. These deferred units are distributed in the form of the Company's common stock. Following this transaction, Miskel now holds 10,826.439 shares of common stock. The filing is a Form 4, indicating a change in beneficial ownership.