W. Christopher Durborow - 17 Feb 2026 Form 4 Insider Report for GRIFFON CORP (GFF)

Role: Vice President & CAO
Signature: /s/ Seth L. Kaplan, as attorney-in-fact
Issuer symbol: GFF
Transactions as of: 17 Feb 2026
Net transactions value: -$919,700
Form type: 4
Filing time: 18 Feb 2026, 16:32:08 UTC
Previous filing: 02 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Durborow W. Christopher	Vice President & CAO	C/O GRIFFON CORPORATION, 712 FIFTH AVENUE, NEW YORK	/s/ Seth L. Kaplan, as attorney-in-fact	18 Feb 2026	0001690552

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GFF	Common Stock	Sale	$919,700	-10,000	-25%	$91.97	29,963	17 Feb 2026	Direct	F1
holding	GFF	Common Stock						3,260	17 Feb 2026	By ESOP

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.50 to $92.43, 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.

Content

The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $91.50 to $92.43, 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.