Item 5.02 Filing: Reports departure of directors or certain officers, election of directors, appointment of certain officers, and compensatory arrangements of certain officers Richard C. Cary Departure: On August 24, 2026, Richard C. Cary, age 63, who served as Controller and Chief Accounting Officer of Arthur J. Gallagher & Co., departed from his position Company Information: Filing pertains to…

Our analysis rates this filing BULLISH. This 8-K filing reports a routine executive succession with exceptionally well-managed transition planning. The incoming Controller and Chief Accounting Officer (Kyle Koreyva, age 42) brings substantial relevant experience including a prior CAO role and 14…

Concern level: MODERATE (2.1/10). Key factors: Single low-to-moderate severity risk identified (severity 3/10) related to CAO transition; Temporary operational disruption potential during knowledge transfer period; Leadership change in critical financial reporting function.

Notable risk changes: Richard C. Cary (Controller/CAO since 1997/2001) stepping down effective September 30, 2026, with planned retirement in 2028; Kyle G. Koreyva (age 42) promoted to Controller and Chief Accounting Officer effective October 1, 2026 - brings 20 years accounting/finance experience including prior CAO role at AssuredPartners and 14 years at PwC; Transition structured to minimize disruption: outgoing…