STOCK TITAN

Griffon CFO (NYSE: GFF) sells 11,050 shares under Rule 10b5-1 plan

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Form Type
4

Rhea-AI Filing Summary

Griffon Corp EVP and Chief Financial Officer Brian G. Harris reported sales of a total of 11,050 shares of common stock on August 5, 2026, under a Rule 10b5-1 trading plan. The shares were sold in two blocks at weighted average prices of $103.08 and $104.01, based on multiple trades within ranges of $103.00–$103.28 and $104.00–$104.05. After these transactions, 4,944 shares are held indirectly through an ESOP.

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Insider Harris Brian G
Role EVP, Chief Financial Officer
Sold 11,050 shs ($1.14M)
Type Security Shares Price Value
Sale Common Stock F1 8,817 $103.08 $909K
Sale Common Stock F2 2,233 $104.01 $232K
holding Common Stock -- -- --
Holdings After Transaction: Common Stock — 133,916 shares (Direct); Common Stock — 4,944 shares (Indirect, By ESOP)
Footnotes (2)
  1. F1. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $103.00 to $103.28, 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. F2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $104.00 to $104.05, inclusive.
Common shares sold (block 1) 8,817 shares Sale of common stock on August 5, 2026 at weighted average price $103.08
Common shares sold (block 2) 2,233 shares Sale of common stock on August 5, 2026 at weighted average price $104.01
Total shares sold 11,050 shares Combined net sales of Griffon common stock reported for August 5, 2026
Weighted average price block 1 $103.08 per share Multiple trades with prices ranging from $103.00 to $103.28
Weighted average price block 2 $104.01 per share Multiple trades with prices ranging from $104.00 to $104.05
ESOP holdings after transaction 4,944 shares Indirect ownership through ESOP following the reported transactions
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
"total_shares_following_transaction 4,944.0000, 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.
Sale in open market or private transaction financial
"transaction_code_description Sale in open market or private transaction"
indirect ownership financial
"ownership_type indirect, nature_of_ownership By ESOP"

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

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FAQ

What insider stock sale did Griffon Corp (GFF) CFO Brian G. Harris report?

Brian G. Harris, Griffon Corp’s EVP and Chief Financial Officer, reported selling a total of 11,050 shares of Griffon common stock on August 5, 2026, executed in two separate transactions under a Rule 10b5-1 trading plan.

How many Griffon (GFF) shares did Brian G. Harris sell and at what prices?

Brian G. Harris sold 8,817 shares at a weighted average price of $103.08 and 2,233 shares at a weighted average price of $104.01. Each reported price reflects a weighted average of multiple trades within the disclosed price ranges.

Were Brian G. Harris’s Griffon (GFF) stock sales made under a Rule 10b5-1 plan?

Yes. The report indicates the transactions were made under a Rule 10b5-1 trading plan, meaning the trades were pre-arranged according to SEC rules, rather than initiated at the reporting person’s sole discretion on the transaction date.

What do the weighted average prices mean in the Griffon (GFF) insider trades?

The reported per-share prices of $103.08 and $104.01 are weighted average prices. Footnotes explain the shares were sold in multiple trades within ranges of $103.00–$103.28 and $104.00–$104.05, respectively, averaged by volume.

How many Griffon (GFF) shares does Brian G. Harris hold through the ESOP after the sale?

After the reported transactions, 4,944 shares of Griffon common stock are held indirectly for Brian G. Harris through an Employee Stock Ownership Plan (ESOP), as disclosed in the indirect ownership section of the report.
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*
Harris Brian G

(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)
EVP, Chief Financial Officer
2a. Foreign Trading Symbol
3. Date of Earliest Transaction (Month/Day/Year)
08/05/2026
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 Stock08/05/2026S8,817D$103.08(1)136,149D
Common Stock08/05/2026S2,233D$104.01(2)133,916D
Common Stock4,944IBy 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 sold in multiple transactions at prices ranging from $103.00 to $103.28, 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 $104.00 to $104.05, inclusive.
Remarks:
/s/ Seth L. Kaplan, as attorney-in-fact08/07/2026
** 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)