Arthur J. Gallagher insider files to sell 4,000 common shares

Arthur J. Gallagher & Co. insider plans Rule 144 share sale.

Rhea-AI Filing Summary

Arthur J. Gallagher & Co. insider plans Rule 144 share sale. A person related to the issuer filed a notice to sell 4,000 shares of common stock through Fidelity Brokerage Services LLC on the NYSE, with an aggregate market value of $1,032,440.44. The notice states that 256,800,000 shares of common stock were outstanding at the time of filing. The seller previously disposed of 1,250 common shares on 11/21/2025 for gross proceeds of $313,426.13. The filer represents that they are not aware of any undisclosed material adverse information about the issuer’s operations.

FAQ

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

What insider transaction is disclosed for AJG in this Form 144 filing?

The notice discloses that an affiliated person intends to sell 4,000 shares of Arthur J. Gallagher & Co. common stock on the NYSE through Fidelity Brokerage Services LLC.

What is the aggregate market value of the AJG shares to be sold?

The 4,000 Arthur J. Gallagher & Co. common shares to be sold have an aggregate market value of $1,032,440.44 as stated in the notice.

How many Arthur J. Gallagher (AJG) shares were outstanding at the time of this notice?

The filing reports that 256,800,000 shares of Arthur J. Gallagher & Co. common stock were outstanding at the time the notice was prepared.

What recent AJG share sales by the same person are reported in the last 3 months?

The notice shows that Christopher E. Mead sold 1,250 Arthur J. Gallagher & Co. common shares on 11/21/2025 for gross proceeds of $313,426.13.

How were the AJG shares being sold acquired by the filer?

The 4,000 common shares were acquired through an option granted on 03/14/2019 and paid for in cash on 12/23/2025, according to the notice.

Does the AJG Form 144 filer make any representations about undisclosed information?

Yes. By signing the notice, the person for whose account the securities will be sold represents that they do not know of any material adverse information about the issuer’s current or prospective operations that has not been publicly disclosed.

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Accepted by SEC EDGAR 12/23/2025 - 10:28 AM Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001737644
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	Arthur J. Gallagher & Co.
SEC File Number	001-09761
Address of Issuer	2850 GOLF ROAD ROLLING MEADOWS ILLINOIS 60008-4050
Phone	630-773-3800
Name of Person for Whose Account the Securities are To Be Sold	Mead Christopher E
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	4000	1032440.44	256800000	12/23/2025	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	12/23/2025	Option Granted 03/14/2019	Issuer			4000	12/23/2025	Cash

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Christopher E. Mead 2850 Golf Road Rolling Meadows IL 60008	Common	11/21/2025	1250	313426.13

144: Remarks and Signature

Remarks
Date of Notice	12/23/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/Wade Moss, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Christopher E. Mead
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)