VP Mead nets 4,000 Arthur J. Gallagher (NYSE: AJG) sale

Rhea-AI Filing Summary

Arthur J. Gallagher & Co. vice president Christopher E. Mead reported an option exercise and share sale. On March 5, 2026 he exercised 4,000 non-qualified stock options, acquiring 4,000 common shares at $79.59 per share, then sold 4,000 common shares in open-market transactions at a weighted-average price of $227.118 per share, with individual trades ranging from $227.050 to $227.580. After these transactions, he directly owned 19,305.7322 common shares and also held additional interests through phantom stock, notional stock units and multiple non-qualified stock option awards, plus 491.098 common shares indirectly through a Gallagher 401(k) plan account.

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).

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^*

Mead Christopher E

(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)
	VICE PRESIDENT

3. Date of Earliest Transaction (Month/Day/Year)
03/05/2026

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	03/05/2026		M		4,000	A	$79.59	23,305.7322	D
Common Stock	03/05/2026		S(1)		4,000	D	$227.118(2)	19,305.7322	D
Common Stock								491.098	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
Non-qualified Stock Option	$79.59	03/05/2026		M			4,000	(3)	03/14/2026	Common Stock	4,000	$0	0	D
Phantom Stock	(4)							(5)	(5)	Common Stock	21,803.927		21,803.927	D
Non-qualified Stock Option	$228.2							(6)	03/01/2033	Common Stock	12,344		12,344	D
Non-qualified Stock Option	$86.17							(3)	03/12/2027	Common Stock	11,090		11,090	D
Non-qualified Stock Option	$127.9							(3)	03/16/2028	Common Stock	11,725		11,725	D
Non-qualified Stock Option	$158.56							(3)	03/15/2029	Common Stock	8,420		8,420	D
Non-qualified Stock Option	$177.09							(7)	03/15/2030	Common Stock	7,009		7,009	D
Non-qualified Stock Option	$243.54							(8)	03/01/2031	Common Stock	7,368		7,368	D
Non-qualified Stock Option	$337.74(9)							(3)	03/01/2032	Common Stock	8,264		8,264	D
Notional Stock Units	(10)							(11)	(11)	Common Stock	1,982.8313		1,982.8313	D

Explanation of Responses:

1. Exercise and sale of expiring stock options.

2. The price reported is an average weighted price. The shares were sold in multiple transactions at prices ranging from $$227.050 - $227.580. 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.

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

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

5. 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.

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

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

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

9. Closing price of Gallagher common stock on February 28, 2025.

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

11. The notional stock units become payable following the reporting person's separation from service with Gallagher.

	/s/ Monica Norzagaray, by power of attorney	03/09/2026
	** 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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FAQ

What did AJG executive Christopher Mead report in this Form 4?

Christopher Mead reported exercising 4,000 non-qualified stock options and selling 4,000 Arthur J. Gallagher & Co. common shares. The filing also updates his remaining direct holdings, option awards, phantom stock, notional stock units, and 401(k) plan shares linked to company stock.

How many Arthur J. Gallagher (AJG) shares did Christopher Mead sell?

Christopher Mead sold 4,000 Arthur J. Gallagher common shares in open-market transactions. The sales occurred at a weighted-average price of $227.118 per share, with individual trade prices ranging from $227.050 to $227.580, as detailed in the Form 4 footnotes.

At what price did Christopher Mead exercise his AJG stock options?

He exercised 4,000 non-qualified stock options to acquire 4,000 Arthur J. Gallagher common shares at $79.59 per share. This option exercise was associated with expiring stock options, according to the Form 4 footnote describing the nature of the transaction.

How many AJG shares does Christopher Mead own after these transactions?

After the reported transactions, Christopher Mead directly owned 19,305.7322 Arthur J. Gallagher common shares. He also indirectly held 491.098 shares through a Gallagher 401(k) plan account, along with phantom stock, notional stock units, and several non-qualified stock option grants.

What are phantom stock and notional stock units in Mead’s AJG holdings?

Phantom stock and notional stock units each represent rights to receive one share of Arthur J. Gallagher common stock. The phantom stock relates to an Age 62 Plan, while the notional stock units become payable after Mead’s separation from service with the company.

Does this AJG Form 4 show routine compensation activity or open-market buying?

The Form 4 primarily shows routine compensation-related activity, including the exercise of 4,000 non-qualified stock options and the sale of the resulting 4,000 shares. It also updates outstanding equity-based awards and plan-related holdings rather than disclosing open-market share purchases.