Arthur J. Gallagher officer plans $3.3M stock sale

Arthur J. Gallagher & Co. (AJG) received a notice that officer Walter D. Bay, through broker Goldman Sachs & Co. LLC, plans to sell up to 12,000 shares of AJG common stock under Rule 144.

Rhea-AI Filing Summary

Arthur J. Gallagher & Co. (AJG) received a notice that officer Walter D. Bay, through broker Goldman Sachs & Co. LLC, plans to sell up to 12,000 shares of AJG common stock under Rule 144. The shares were acquired as compensation via restricted stock awards in 2025, in three lots of 1,305, 4,072, and 6,623 shares. The filing lists an aggregate market value of $3,263,880 for the planned sale and notes that 256,300,000 AJG common shares were outstanding. The proposed sale date referenced is August 24, 2026, with the shares listed on the NYSE.

Key Figures

Number of shares to be sold: 12,000 shares Aggregate market value of securities to be sold: $3,263,880 Shares outstanding: 256,300,000 shares +4 more

7 metrics

Number of shares to be sold 12,000 shares Planned Rule 144 sale of Arthur J. Gallagher & Co. common stock

Aggregate market value of securities to be sold $3,263,880 Value of 12,000 AJG shares covered by the Rule 144 notice

Shares outstanding 256,300,000 shares AJG common shares outstanding referenced in the Rule 144 filing

Planned sale date 08/24/2026 Approximate date of sale listed for the Rule 144 transaction

Restricted Stock Awards lot 1 1,305 shares Compensation shares acquired on 03/12/2025

Restricted Stock Awards lot 2 4,072 shares Compensation shares acquired on 03/15/2025

Restricted Stock Awards lot 3 6,623 shares Compensation shares acquired on 02/12/2025

Key Terms

Rule 144, Restricted Stock Awards, Aggregate Market Value, Common Stock

4 terms

Rule 144 regulatory

"See the definition of "person" in paragraph (a) of Rule 144."

Rule 144 is a U.S. securities regulation that sets conditions under which restricted or insider-held shares can be legally resold to the public, such as required holding periods, availability of public information, limits on how much can be sold at once, and certain filing requirements. For investors it matters because it determines when previously locked-up shares can enter the market — like a release valve that can increase supply, affect share price, and signal insider intent.

Restricted Stock Awards financial

"Acquired as compensation -- Restricted Stock Awards"

Restricted stock awards are company shares given to employees or executives that cannot be sold or transferred until certain conditions — like staying with the company for a set time or meeting performance targets — are met, like a gift that is locked in a safe until rules are satisfied. Investors care because these awards tie management’s pay to company performance, can increase the number of shares outstanding when they become tradable (dilution), and may signal expected future selling pressure or commitment to long-term growth.

Aggregate Market Value financial

"12000 | 3263880 | 256300000 | 08/24/2026"

Aggregate market value is the combined price you would pay to buy all outstanding shares of a company or all companies in a group at current market prices — essentially the sum of each stock’s market capitalization. It matters to investors because it shows the overall size and weight of an investment or sector (like the total cost to buy every piece of a puzzle), helps compare scale across companies or markets, and influences index composition and risk exposure.

Common Stock financial

"Common Stock | Goldman Sachs & Co. LLC 200 West Street New York NY 10282"

Common stock represents ownership shares in a company, giving investors a stake in its success and a say in important decisions through voting rights. It is the most common type of stock traded on markets and can provide income through dividends, as well as potential for value growth. For investors, holding common stock means sharing in the company’s profits and risks.

FAQ

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

What transaction involving AJG stock is disclosed in this Form 144 filing?

The filing discloses that officer Walter D. Bay plans to sell up to 12,000 shares of Arthur J. Gallagher & Co. (AJG) common stock under Rule 144 through Goldman Sachs & Co. LLC.

How many Arthur J. Gallagher (AJG) shares are planned to be sold and what is their value?

The notice covers a planned sale of 12,000 AJG common shares with an indicated aggregate market value of $3,263,880, as stated in the Rule 144 securities information section.

Who is the AJG insider involved in this Rule 144 sale?

The planned sale is for the account of Walter D. Bay, identified as an officer of Arthur J. Gallagher & Co. (AJG), with Goldman Sachs & Co. LLC acting on his behalf.

When is the planned sale date for the AJG shares under this Form 144?

The Rule 144 notice lists an approximate sale date of August 24, 2026 for the planned disposition of 12,000 Arthur J. Gallagher & Co. common shares on the NYSE.

How and when were the AJG shares being sold under Rule 144 acquired?

The 12,000 AJG shares were acquired as compensation via Restricted Stock Awards from the issuer on February 12, 2025 (6,623 shares), March 12, 2025 (1,305 shares), and March 15, 2025 (4,072 shares).

How many Arthur J. Gallagher (AJG) shares are outstanding according to this filing?

The securities information section reports that 256,300,000 shares of Arthur J. Gallagher & Co. (AJG) common stock were outstanding, providing context for the relative size of the planned 12,000-share Rule 144 sale.

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

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Available on EDGAR 08/24/2026 - 05:13 PM Accepted by SEC EDGAR 08/24/2026 - 05:12 PM 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	0001410235
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
Phone	1-630-773-3800
Name of Person for Whose Account the Securities are To Be Sold	Walter D. Bay
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 Stock	Goldman Sachs & Co. LLC 200 West Street New York NY 10282	12000	3263880	256300000	08/24/2026	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 Stock	03/12/2025	Acquired as compensation -- Restricted Stock Awards	Issuer			1305	03/12/2025	Compensation
Common Stock	03/15/2025	Acquired as compensation -- Restricted Stock Awards	Issuer			4072	03/15/2025	Compensation
Common Stock	02/12/2025	Acquired as compensation -- Restricted Stock Awards	Issuer			6623	02/12/2025	Compensation

* 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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/24/2026
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	Goldman Sachs & Co. LLC on behalf of Walter D. Bay
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)