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Griffon (NYSE: GFF) President & COO logs small insider stock sale

Filing Impact
(Neutral)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Griffon Corp President and COO Robert F. Mehmel reported small open-market sales of company stock. On June 26, 2026, he sold a total of 286 shares of Griffon common stock in three transactions at prices around the mid‑$90s per share. A separate entry shows 4,219 shares held indirectly through an ESOP, reflecting an additional employee benefit plan position.

Positive

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Negative

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Insider MEHMEL ROBERT F
Role President and COO
Sold 286 shs ($27K)
Type Security Shares Price Value
Sale Common Stock 230 $95.52 $22K
Sale Common Stock 52 $96.14 $5K
Sale Common Stock 4 $97.50 $390.00
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 790,122 shares (Direct, null); Common Stock — 4,219 shares (Indirect, by ESOP)
Footnotes (1)
  1. [object Object]
Shares sold 286 shares Total Griffon common stock sold on June 26, 2026
Sale price 1 $97.50 per share One open-market sale of Griffon common stock
Sale price 2 $96.14 per share Second open-market sale of Griffon common stock
Sale price 3 $95.52 per share Third open-market sale of Griffon common stock
Price range for weighted average $95.14–$95.99 per share Range of individual trades used to calculate weighted average
ESOP indirect holdings 4,219 shares Common stock held indirectly by ESOP as of June 26, 2026
open-market sale financial
"transaction_action: open-market sale"
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
"nature_of_ownership: by 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.
indirect ownership financial
"ownership_type: indirect"
Form 4 regulatory
"set forth in this Form 4."
Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.
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Form 4 Insider Transactions: What Each Field Means →
SEC Form 4
FORM 4UNITED 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)
Director10% Owner
XOfficer (give title below)Other (specify below)
President and COO
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
06/26/2026		6. Individual or Joint/Group Filing (Check Applicable Line)
XForm 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)
CodeVAmount(A) or (D)Price
Common Stock06/26/2026S230D$95.52(1)790,122D
Common Stock06/26/2026S52D$96.14790,070D
Common Stock06/26/2026S4D$97.5790,066D
Common Stock4,219Iby 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)
CodeV(A)(D)Date ExercisableExpiration DateTitleAmount 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 $95.14 to $95.99, 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 ranges set forth in this Form 4.
Remarks:
/s/ Seth L. Kaplan, as attorney-in-fact06/30/2026
** Signature of Reporting PersonDate
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)

Source: View Original Filing on SEC EDGAR

FAQ

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

Robert F. Mehmel, President and COO of Griffon Corp, reported selling 286 shares of common stock in open-market transactions on June 26, 2026. These dispositions were detailed across multiple trades at prices in the mid-$90s per share.

How many GFF shares did Robert F. Mehmel sell and at what prices?

He sold a total of 286 Griffon common shares across three trades at reported prices of $97.50, $96.14, and $95.52 per share. A footnote states the weighted average price reflects multiple trades between $95.14 and $95.99.

What does the Form 4 say about Robert F. Mehmel’s ESOP holdings in GFF?

The Form 4 shows an indirect holding of 4,219 Griffon common shares held by an ESOP. This entry is categorized as indirect ownership, indicating shares are maintained through an employee stock ownership plan rather than directly in his personal account.

Were Robert F. Mehmel’s GFF share transactions open-market sales?

Yes. Each reported transaction is coded “S” and described as an open-market or private sale of Griffon common stock. The trades occurred on June 26, 2026, with execution prices clustered in the $95–$98 per share range.

Does the GFF Form 4 disclose how the weighted average sale price was calculated?

Yes. A footnote explains the reported price is a weighted average from multiple trades between $95.14 and $95.99 per share. The filer offers to provide detailed share counts at each price to Griffon, its security holders, or SEC staff upon request.