Griffon COO sells 4,166 shares at $97.76

GRIFFON CORP President and COO Robert F. Mehmel reported an open-market sale of 4,166 shares of common stock at a weighted average price of $97.76 per share.

Rhea-AI Filing Summary

GRIFFON CORP President and COO Robert F. Mehmel reported an open-market sale of 4,166 shares of common stock at a weighted average price of $97.76 per share. After this transaction, he directly holds 785,900 common shares and indirectly holds 4,219 shares through an ESOP.

The sale price reflects multiple trades completed on the same day, with individual prices ranging from $97.50 to $98.37 per share, according to the filing footnote.

Insider Trade Summary 10b5-1

Net Seller: 4,166 shares

Net Sell 2 txns

Insider MEHMEL ROBERT F

Role President and COO

Sold 4,166 shs ($407K)

Type	Security	Shares	Price	Value
Sale	Common Stock	4,166	$97.76	$407K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 785,900 shares (Direct); Common Stock — 4,219 shares (Indirect, by ESOP)

Footnotes (1)

1. F1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $97.50 to $98.37, inclusive. The reporting person undertakes to provide Griffon Corporation, any security holder of Griffon Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares disposed of at each price within the range set forth in this footnote.

Key Figures

Shares sold: 4,166 shares Weighted average sale price: $97.76 per share Direct holdings after transaction: 785,900 shares +2 more

5 metrics

Shares sold 4,166 shares Open-market sale of common stock

Weighted average sale price $97.76 per share Common stock sale on reported date

Direct holdings after transaction 785,900 shares Common stock directly owned post-sale

Indirect ESOP holdings 4,219 shares Common stock held indirectly by ESOP

Sale price range $97.50–$98.37 per share Range of individual trades in sale

Key Terms

open-market sale, weighted average price, ESOP, non-derivative

4 terms

open-market sale financial

"reported an open-market sale of 4,166 shares of common stock"

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

weighted average price financial

"The price reported in Column 4 is a weighted average price"

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

ESOP financial

"indirectly holds 4,219 shares through an ESOP"

An Employee Stock Ownership Plan (ESOP) is a program that gives employees ownership shares in their company, often as part of their benefits package. It acts like a company-sponsored savings plan, allowing workers to have a stake in the company's success, which can boost motivation and loyalty. For investors, ESOPs can influence company decisions and stock value, making them an important aspect of corporate ownership and governance.

non-derivative financial

"transaction_type": "non-derivative""

FAQ

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

What insider transaction did GRIFFON CORP (GFF) report for Robert F. Mehmel?

GRIFFON CORP reported that President and COO Robert F. Mehmel executed an open-market sale of 4,166 shares of common stock. The shares were sold at a weighted average price of $97.76 per share, as disclosed in the Form 4 filing and related footnote.

At what price did Robert F. Mehmel trade GFF common stock on this Form 4?

The Form 4 shows a weighted average sale price of $97.76 per GFF share. A footnote explains the shares were sold in multiple transactions, with individual prices ranging from $97.50 to $98.37 per share during the trading day.

How many GFF shares does Robert F. Mehmel hold after this Form 4 transaction?

Following the reported sale, Robert F. Mehmel holds 785,900 GFF common shares directly. He also has an indirect interest in 4,219 additional shares held through an ESOP, as reflected in the holdings section of the Form 4 filing.

What is the size of Robert F. Mehmel’s GFF stock sale in this filing?

The Form 4 records the sale of 4,166 GFF common shares by Robert F. Mehmel. This was an open-market transaction, and the reported weighted average sale price was $97.76 per share across multiple trades within the stated price range.

Does the GFF Form 4 show any derivative or option exercises by Robert F. Mehmel?

No derivative or option exercises are listed in this Form 4 for Robert F. Mehmel. The filing only reports a non-derivative open-market sale of common stock and an indirect ESOP holding entry, with no derivative positions shown in the derivative summary.

How are Robert F. Mehmel’s indirect GFF share holdings described in the Form 4?

The Form 4 notes that 4,219 GFF common shares are held indirectly for Robert F. Mehmel “by ESOP.” This indicates an employee stock ownership plan account, separate from his 785,900 directly held common shares reported after the open-market sale.

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

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Accepted by SEC EDGAR 07/02/2026 - 05:00 PM EDT Learn about SEC filing dates

SEC Form 4

FORM 4

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

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

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:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

X

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

MEHMEL ROBERT F

(Last) (First) (Middle)

C/O GRIFFON CORPORATION

712 FIFTH AVENUE

(Street)

NEW YORK NEW YORK 10019

(City) (State) (Zip)

UNITED STATES

(Country)

2. Issuer Name and Ticker or Trading Symbol
GRIFFON CORP [ GFF ]

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

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	President and COO

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
06/30/2026

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

4. If Amendment, Date of Original Filed (Month/Day/Year)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	06/30/2026		S		4,166	D	$97.76(1)	785,900	D
Common Stock								4,219	I	by ESOP

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $97.50 to $98.37, inclusive. The reporting person undertakes to provide Griffon Corporation, any security holder of Griffon Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares disposed of at each price within the range set forth in this footnote.

Remarks:

	/s/ Seth L. Kaplan, as attorney-in-fact	07/02/2026
	** 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 4 (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 4: SEC 1474 (03-26)