Form 4 Filing for Arthur J. Gallagher & Co.

This filing details stock transactions by Patrick Murphy, Chief Operating Officer of Arthur J. Gallagher & Co., on March 15-16, 2026. Key events include the vesting and acquisition of 4620 restricted stock units, with shares withheld for tax obligations. Murphy also acquired 4620 common shares and disposed of 1962 shares at $207.93 per share, followed by another disposal of 525 shares at the same price. The filing also lists various holdings of common stock indirectly owned through trusts, a 401(k) plan, and by his spouse. Derivative holdings include non-qualified stock options and phantom stock units, with specific exercise prices and expiration dates detailed.