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

Mar 11, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Arthur J. Gallagher & Co. (AJG)
CIK: 0000354190
Period of Report: 2025-03-07

Reporting Person: Gallagher Patrick Murphy (Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-03-07	Common Stock	G	18801.25	—	Acquired	99692.25	Indirect
2025-03-11	Common Stock	G	20133.25	—	Disposed	79559	Indirect
2025-03-11	Common Stock	G	20133.25	—	Acquired	63078.1067	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-03-10	Phantom Stock	$	I	933.911	Acquired		Common Stock (933.911)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	10120	Indirect
Common Stock	367.549	Indirect
Common Stock	7964	Indirect
Common Stock	20032	Indirect
Common Stock	54859	Indirect

Footnotes

F1: Shares held in trusts, for the benefit of the reporting person's children, of which his wife is sole trustee.

F2: Shares held in revocable trust of which the reporting person's spouse is sole Trustee and as to which he disclaims beneficial ownership.

F3: Shares held in trust for the benefit of the reporting person's children, of which he is a trustee.

F4: Each share of phantom stock represents a right to receive one share of Gallagher common stock.

F5: These shares represent awards under the Age 62 Plan, a nonqualified deferred compensation plan of the Company, which have been deemed invested in Company common stock at the election of the reporting person. Participants vest in these awards when they attain age 62, or after a one-year period for participants who have attained age 61.