Arthur J. Gallagher & Co. — Director's Dealing 2025

Aug 4, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Arthur J. Gallagher & Co. (AJG)
CIK: 0000354190
Period of Report: 2025-07-31

Reporting Person: HOWELL DOUGLAS K (VP & Chief Financial Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-07-31	Common Stock	M	35739.4628	—	Acquired	117776.7558	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-07-31	Notional Stock Units	$0	M	35739.4628	Disposed		Common Stock (35739.4628)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3165	Indirect
Common Stock	418.691	Indirect

Footnotes

F1: The reporting person has no voting or invesment power over these shares and disclaims beneficial ownership.

F2: Each notional stock unit represents a right to receive one share of Gallagher common stock.

F3: Portions of these notional stock units are payable to the reporting person in shares of common stock in July of 2024, 2025, 2026, 2028 and 2029 and following the reporting person's separation from service.