Arthur J. Gallagher & Co. amends officer holdings

A note identifies 854 shares underlying restricted stock units that were omitted from the original ownership report.

This filing corrects an earlier one, and you can read the original Form 3 if you want to see what changed.

Rhea-AI Filing Summary

Arthur J. Gallagher & Co. (AJG) amended the ownership report for Chief Accounting Officer Kyle Graham Koreyva, listing 2,680 shares of common stock held directly as of October 1, 2026. The entry records an ownership balance rather than a purchase or sale. A note says 854 shares underlying restricted stock units were omitted from the original Form 3.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider Koreyva Kyle Graham

Role Chief Accounting Officer

Type	Security	Shares	Price	Value
holding	Common Stock F1	--	--	--

Holdings After Transaction: Common Stock — 2,680.048 shares (Direct)

Footnotes (1)

1. F1. 854 shares underlying restricted stock units were omitted from the reporting person's original Form 3.

Key Figures

Direct common stock holding: 2,680 shares Restricted stock unit shares: 854 shares

2 metrics

Direct common stock holding 2,680 shares As of October 1, 2026

Restricted stock unit shares 854 shares Omitted from the original Form 3

Key Terms

restricted stock units, Form 3

2 terms

restricted stock units financial

"shares underlying restricted stock units were omitted"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

Form 3 regulatory

"omitted from the reporting person's original Form 3"

Form 3 is the initial public filing that officers, directors and large shareholders must submit to report their ownership of a company’s securities when they become insiders. It acts like an opening inventory sheet that gives investors a starting point to see who holds significant stakes and to spot later trades or potential conflicts of interest, helping assess insider confidence and transparency.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

How many AJG shares did Kyle Graham Koreyva report?

Kyle Graham Koreyva, Arthur J. Gallagher & Co.'s Chief Accounting Officer, reported 2,680 shares of common stock held directly as of October 1, 2026. A note says 854 shares underlying restricted stock units were omitted from the original Form 3.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/08/2026 - 09:25 PM Accepted by SEC EDGAR 10/08/2026 - 09:24 PM Learn about SEC filing dates

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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:			3235-0104
Estimated average burden
hours per response:			0.5

1. Name and Address of Reporting Person^*

Koreyva Kyle Graham

(Last) (First) (Middle)

2850 GOLF ROAD

(Street)

ROLLING MEADOWS ILLINOIS 60008

(City) (State) (Zip)

UNITED STATES

(Country)

2. Date of Event Requiring Statement (Month/Day/Year)
10/01/2026

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

3a. Foreign Trading Symbol

5. If Amendment, Date of Original Filed (Month/Day/Year)
10/01/2026

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

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

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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	2,680.048(1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. 854 shares underlying restricted stock units were omitted from the reporting person's original Form 3.

	/s/ Monica Norzagaray, by power of attorney	10/08/2026
	** 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 5 (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.
* Form 3: SEC 1473 (03-26)