[Form 4] Arthur J. Gallagher & Co. Insider Trading Activity

Rhea-AI Filing Summary

Form 4 filing by Richard C. Cary (Controller, CAO and Director) for Arthur J. Gallagher & Co. (AJG). The filing reports a sale of 4,000 shares of common stock on 08/21/2025 at a reported price of $306 per share. After the transaction Mr. Cary is shown as beneficially owning 56,667.789 shares directly plus an indirect holding of 418.699 shares in a Gallagher 401(k) plan account, with reporting handled under power of attorney on 08/22/2025.

The form clarifies reporting format: previously separate Common Stock and Restricted Common Stock lines will be combined going forward. No derivative transactions, acquisitions, grants, or additional disclosures are included in this filing.

Positive

• Significant retained ownership: Reporting person still beneficially owns 56,667.789 shares directly, indicating continued stake in AJG
• Clear disclosure and compliance: Transaction details, price, and post-transaction holdings are reported and form signed via power of attorney on 08/22/2025

Negative

• Insider sale: Disposition of 4,000 shares on 08/21/2025 at $306 per share

Insights

Securities Analyst

TL;DR: Insider sold 4,000 AJG shares at $306, retaining ~56,668 shares; transaction appears routine and nondilutive.

The sale of 4,000 shares at $306 reduces the reporting person’s direct stake but leaves a significant residual holding of 56,667.789 shares plus 418.699 indirect shares in a 401(k). There are no derivative transactions or new grants reported, and the filing documents a change in reporting presentation for common and restricted stock totals. The disposition size is modest relative to the remaining direct holding and no material corporate action or liquidity event is disclosed.

Corporate Governance Expert

TL;DR: Officer/director disclosed an open-market sale; disclosure and POA signature comply with Section 16 reporting norms.

The filing identifies the reporting person as an officer and director and uses a power of attorney for signature, which is common practice. The report contains required details: transaction date, amount sold, price, and post-transaction beneficial ownership. The amendment to combine common and restricted stock reporting is an administrative clarification and does not change substantive ownership figures. No governance concerns or unusual transactions are evident from the filing alone.

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

OMB APPROVAL

OMB Number:			3235-0287
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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).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

CARY RICHARD C

(Last) (First) (Middle)

2850 GOLF ROAD

(Street)

ROLLING MEADOWS IL 60008-4002

(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)
	Controller, CAO

3. Date of Earliest Transaction (Month/Day/Year)
08/21/2025

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	08/21/2025		S		4,000	D	$306	56,667.789(1)	D
Common Stock								418.699	I	Gallagher 401(k) plan account

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

Explanation of Responses:

1. In the past, Common Stock and Common Stock (Restricted) were reported as two separate line items. In the future, they will be reported as a combined total as is stated on this Form.

	/s/ Monica Norzagaray, by power of attorney	08/22/2025
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What transaction does the AJG Form 4 report for Richard C. Cary?

The Form 4 reports a sale of 4,000 shares of AJG common stock on 08/21/2025 at a price of $306 per share.

How many AJG shares does Richard C. Cary own after the reported sale?

After the sale Mr. Cary beneficially owns 56,667.789 shares directly plus 418.699 shares indirectly in a Gallagher 401(k) plan account.

What is Richard C. Cary's role at Arthur J. Gallagher & Co. as listed on the Form 4?

The filing lists him as an Officer (Controller, CAO) and a Director of Arthur J. Gallagher & Co.

Was any derivative activity or new grants reported in this Form 4?

No. Table II shows no derivative securities, grants, or exercises reported in this filing.

Who signed the Form 4 and when?

The form was signed by Monica Norzagaray by power of attorney on 08/22/2025.