Griffon insider plans Rule 144 stock sale

Brian G. Harris filed to sell common stock of Griffon under Rule 144.

Rhea-AI Filing Summary

Brian G. Harris filed to sell common stock of Griffon under Rule 144. The notice covers 5,267 shares of common stock with an aggregate market value of $564,106.48, with Griffon common stock listed on the NYSE. The filing also lists prior sales over the past three months, including 7,500 shares for $712,722.00 on June 11, 2026, 6,183 shares for $606,022.00 on June 30, 2026, and 11,050 shares for $1,141,150.00 on August 5, 2026.

Key Figures

Shares to be sold: 5,267 shares Aggregate market value of planned sale: $564,106.48 Issuer shares outstanding: 45,294,716 shares +3 more

6 metrics

Shares to be sold 5,267 shares Planned Rule 144 sale of Griffon common stock

Aggregate market value of planned sale $564,106.48 Reported value for 5,267 Griffon common shares

Issuer shares outstanding 45,294,716 shares Common stock of Griffon listed with NYSE

Sale on June 11, 2026 7,500 shares for $712,722.00 Prior three-month sale of Griffon common stock

Sale on June 30, 2026 6,183 shares for $606,022.00 Prior three-month sale of Griffon common stock

Sale on August 5, 2026 11,050 shares for $1,141,150.00 Most recent prior three-month sale of Griffon common stock

Key Terms

RSU / AWARDS, Securities To Be Sold, Securities Sold During The Past 3 Months

3 terms

RSU / AWARDS financial

"COMMON | 11/30/2021 | RSU / AWARDS | ISSUER"

Securities To Be Sold regulatory

"144: Securities To Be Sold"

Securities Sold During The Past 3 Months regulatory

"144: Securities Sold During The Past 3 Months"

FAQ

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

What does the Form 144 filing related to GFF disclose about Brian G. Harris?

The filing shows Brian G. Harris intends to sell 5,267 Griffon common shares under Rule 144. It also lists his prior three-month sales totaling 24,733 shares across three transactions with disclosed dollar amounts.

How many Griffon (linked to GFF) shares are covered by this planned Rule 144 sale?

The planned Rule 144 transaction covers 5,267 shares of Griffon common stock. These shares have an aggregate reported market value of $564,106.48 based on the figures disclosed in the notice.

What prior stock sales by Brian G. Harris are disclosed in the GFF-related filing?

Over the past three months, Brian G. Harris sold 7,500 shares for $712,722.00, 6,183 shares for $606,022.00, and 11,050 shares for $1,141,150.00 of Griffon common stock, all listed in the disclosure.

What is the reported market value of the Griffon shares to be sold in the GFF filing?

The notice reports an aggregate market value of $564,106.48 for the 5,267 Griffon common shares covered by the planned Rule 144 sale. This value is based on the price data used in the disclosure.

What type of securities are involved in the GFF-related Form 144 for Brian G. Harris?

The filing involves common stock of Griffon and references RSU / AWARDS dated November 30, 2021, as the source of the 5,267 shares now subject to the proposed Rule 144 sale.

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

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Available on EDGAR 08/07/2026 - 04:10 PM Accepted by SEC EDGAR 08/07/2026 - 04:10 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	0001470077
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 CORP
SEC File Number	001-06620
Address of Issuer	712 FIFTH AVENUE NEW YORK NEW YORK 10019
Phone	2129575000
Name of Person for Whose Account the Securities are To Be Sold	Harris Brian G
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	THE CHARLES SCHWAB CORPORATION 3000 Schwab Way Westlake TX 76262	5267	564106.48	45294716	08/07/2026	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	11/30/2021	RSU / AWARDS	ISSUER			5267	11/30/2021	NA

* 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
BRIAN G. HARRIS 712 Fifth Ave 18th Floor New York NY 10019	COMMON	06/11/2026	7500	712722.00
BRIAN G. HARRIS 712 Fifth Ave, 18th Floor New York NY 10019	COMMON	06/30/2026	6183	606022.00
BRIAN G. HARRIS 712 Fifth Ave, 18th Floor New York NY 10019	COMMON	08/05/2026	11050	1141150.00

144: Remarks and Signature

Remarks
Date of Notice	08/07/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	02/12/2026
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	BRIAN G. HARRIS
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)