Griffon director Sullivan proposes $367K share sale

Accepted by SEC EDGAR 08/13/2026 - 05:24 PM EDT Learn about SEC filing dates

Rhea-AI Filing Summary

Griffon Corporation (GFF) is the issuer named in a notice covering director Kevin F. Sullivan’s proposed sale of 3,500 common shares, with an approximate sale date of August 13, 2026. The shares have an aggregate market value of $367,080 and are listed as acquired in an open-market purchase on December 21, 2021. Seth L. Kaplan signed as attorney-in-fact.

Key Figures

Common shares to be sold: 3,500 shares Aggregate market value: $367,080 Shares outstanding: 45,294,716 shares

3 metrics

Common shares to be sold 3,500 shares Proposed sale by Kevin F. Sullivan

Aggregate market value $367,080 Shares listed for sale

Shares outstanding 45,294,716 shares Reported in the notice

Key Terms

Aggregate Market Value, Approximate Date of Sale, Open Market Purchase

3 terms

Aggregate Market Value financial

"Aggregate Market Value 367080"

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.

Approximate Date of Sale technical

"Approximate Date of Sale 08/13/2026"

Open Market Purchase financial

"Nature of Acquisition Transaction | Open Market Purchase"

An open market purchase is when a company buys its own shares on public stock exchanges the same way any investor would, rather than through a private deal. Investors care because these purchases reduce the number of shares available, can boost earnings per share and share price, signal that management thinks the stock is undervalued, and use company cash that might otherwise go to reinvestment or dividends — like a business quietly buying back its own tickets at the box office.

FAQ

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

How many Griffon (GFF) shares did Kevin F. Sullivan propose to sell?

Kevin F. Sullivan’s notice lists 3,500 common shares for sale, with an aggregate market value of $367,080 and an approximate sale date of August 13, 2026.

Who is the broker for Kevin F. Sullivan’s proposed GFF share sale?

Raymond James & Associates, Inc. is named as the broker.

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

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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	0001568057
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	Griffon Corporation
SEC File Number	001-06620
Address of Issuer	712 Fifth Avenue New York NEW YORK 10019
Phone	212-957-5000
Name of Person for Whose Account the Securities are To Be Sold	Kevin F. Sullivan
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	Director

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	Raymond James & Associates, Inc. 880 Carillon Parkway St. Petersburg FL 33716	3500	367080	45294716	08/13/2026	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	12/21/2021	Open Market Purchase	Open Market Purchase			3500	12/21/2021	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

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	08/13/2026
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	/s/ Seth L. Kaplan, as attorney-in-fact
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)