Arthur J. Gallagher & Co. (AJG) Form 4 Arthur J. Gallagher & Co. / Patrick Murphy Gallagher ownership change

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

Gallagher Patrick Murphy

(Last) (First) (Middle)

2850 GOLF ROAD

(Street)

ROLLING MEADOWS IL 60008

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Arthur J. Gallagher & Co. [ AJG ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Chief Operating Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/27/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	02/27/2025		M		5,250	A	$70.74	45,557.8567	D
Common Stock	02/27/2025		S		2,613	D	$332.518(1)	42,944.8567	D
Common Stock								10,120	I	By Spouse as Trustee(2)
Common Stock								367.549	I	Gallagher 401(k) plan account
Common Stock								7,964	I	By Spouse's Trust(3)
Common Stock								80,891	I	By Trust(4)
Common Stock								20,032	I	By Trust(5)
Common Stock								54,859	I	By Irrevocable Trust

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-qualified Stock Option	$70.74	02/27/2025		M			5,250	(6)(7)	03/15/2025	Common Stock	5,250	$0	0	D

Explanation of Responses:

1. The price reported is an average weighted price. The shares were sold in multiple transactions at prices ranging from $332.476 to $332.555. The reporting person will provide to the Securities and Exchange Commission staff, the issuer, or any security holder of the issuer, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

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

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

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

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

6. Grant date of 3/15/2018.

7. One-third of this stock option becomes exerciseable on each of the 3rd, 4th, and 5th anniversaries of the grant date.

	/s/ Ryan Session, by power of attorney	02/28/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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