Form 4 Filing for Arthur J. Gallagher & Co.

This filing details transactions of Arthur J. Gallagher & Co. common stock by Patrick Murphy Gallagher, Chief Operating Officer. On May 26, 2026, Mr. Gallagher acquired 14,698 shares of common stock through a trust (transaction code G, acquisition code A) with a reported price of $0.00. Following this transaction, the total shares held in this trust amount to 98,105.25. The filing also lists various holdings, including shares held by spouse as trustee, directly held shares, shares in a 401(k) plan, shares held in spouse's trust, shares held in trust, and shares held in an irrevocable trust. Additionally, the report outlines several derivative holdings, including non-qualified stock options with varying exercise prices and expiration dates, as well as holdings in phantom stock and notional stock units.