• Arthur J. Gallagher reported the death of lead independent director David Johnson on July 29, 2026.
• The board will shrink to eight members.
• Independent directors named Ralph Nicoletti as lead independent director, effective immediately.
• Nicoletti joined the board in 2016; he has chaired the audit committee since 2019.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Arthur J.Gallagher & Co. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0000354190-26-000184), on July 29, 2026, and is solely responsible for the information contained therein.