STOCK TITAN

Griffon Corp (GFF) COO Mehmel reports open-market sale of 8,773 shares, retains major stake

Filing Impact
(Very High)
Filing Sentiment
(Negative)
Form Type
4

Rhea-AI Filing Summary

Griffon Corp President and COO Robert F. Mehmel reported open-market sales of company common stock. He sold a total of 8,773 shares in two transactions at weighted average prices of $95.18 and $95.40 per share, executed across multiple trades within disclosed price ranges. After these sales, he directly holds 806,516 shares of common stock and has an additional 4,219 shares held indirectly through an ESOP.

Positive

  • None.

Negative

  • None.
Insider MEHMEL ROBERT F
Role President and COO
Sold 8,773 shs ($836K)
Type Security Shares Price Value
Sale Common Stock 3,272 $95.40 $312K
Sale Common Stock 5,501 $95.18 $524K
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 806,516 shares (Direct, null); Common Stock — 4,219 shares (Indirect, by ESOP)
Footnotes (1)
  1. The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $95.01 and $95.61, 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 footnotes (1) and (2) to this Form 4. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.01 and $95.90, inclusive.
Total shares sold 8,773 shares Common stock open-market sales reported on Form 4
Weighted average sale price (first sale) $95.40 per share Common stock sale on 2026-06-15
Weighted average sale price (second sale) $95.18 per share Common stock sale on 2026-06-12
Price range first weighted sale $95.01–$95.61 Multiple transactions within this range per footnote
Price range second weighted sale $95.01–$95.90 Multiple transactions within this range per footnote
Direct holdings after transactions 806,516 shares Common stock directly owned following reported sales
Indirect ESOP holdings 4,219 shares Common stock held indirectly by ESOP as of 2026-06-12
open-market sale financial
"transaction_action is described as an open-market sale 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
"nature_of_ownership for indirect holdings is listed as 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 is indirect for shares held by ESOP"
transaction code S regulatory
"transaction_code S indicates a sale in open market or private transaction"
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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)
06/12/2026
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 Stock06/12/2026S5,501D$95.18(1)809,788D
Common Stock06/15/2026S3,272D$95.4(2)806,516D
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 $95.01 and $95.61, 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 footnotes (1) and (2) to this Form 4.
2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.01 and $95.90, inclusive.
Remarks:
/s/ Seth L. Kaplan, as attorney-in-fact06/16/2026
** 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)

FAQ

What insider transactions did Griffon Corp (GFF) report for Robert F. Mehmel?

Griffon Corp reported that President and COO Robert F. Mehmel sold 8,773 shares of common stock in open-market transactions. These sales occurred at weighted average prices around $95 per share, with multiple individual trades within specified price ranges.

How many Griffon Corp (GFF) shares did Robert F. Mehmel sell and at what prices?

Robert F. Mehmel sold 8,773 Griffon Corp common shares. The reported weighted average sale prices were $95.18 and $95.40 per share, with individual trades executed within price ranges from $95.01 up to $95.90, as detailed in the footnotes.

How many Griffon Corp (GFF) shares does Robert F. Mehmel hold after these Form 4 sales?

After the reported sales, Robert F. Mehmel directly holds 806,516 Griffon Corp common shares. He also has 4,219 additional shares held indirectly through an employee stock ownership plan (ESOP), according to the Form 4 filing’s ownership tables.

Were the Griffon Corp (GFF) insider transactions open-market sales or other types of trades?

The Form 4 identifies the transactions as open-market sales of common stock. Both sale entries use transaction code “S,” described as sales in open market or private transactions, with prices reported on a weighted average basis across multiple trades.

What do the weighted average prices in the Griffon Corp (GFF) Form 4 mean?

The weighted average prices reflect that the shares were sold in multiple trades at different prices. For these transactions, the trades occurred within ranges from $95.01 to $95.61 and from $95.01 to $95.90, with the averages reported in the Form 4 columns.