ROBERT F. MEHMEL - 18 Nov 2025 Form 4 Insider Report for GRIFFON CORP (GFF)

Role: President and COO
Signature: /s/ Seth L. Kaplan, as attorney-in-fact
Issuer symbol: GFF
Transactions as of: 18 Nov 2025
Transactions value $: $0
Form type: 4
Filing time: 19 Nov 2025, 17:32:15 UTC
Previous filing: 06 Feb 2025
Next filing: 02 Dec 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
MEHMEL ROBERT F	President and COO	C/O GRIFFON CORPORATION, 712 FIFTH AVENUE, NEW YORK	/s/ Seth L. Kaplan, as attorney-in-fact	19 Nov 2025	0001201289

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	GFF	Common Stock	Award	$0	+68.4K	+8.84%	$0.00	842K	18 Nov 2025	Direct	F1
holding	GFF	Common Stock						4.22K	18 Nov 2025	by ESOP

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

Explanation of Responses:

Id	Content
F1	Restricted shares granted under the Company's 2016 Equity Incentive Plan in a transaction exempt under Rule 16b. Vesting of the restricted shares is partially dependent on the attainment of specified financial and market performance criterium; on November 18, 2025, the extent to which such performance criterium was achieved was certified. Subject to the reporting person's continued employment, the restricted shares will vest on November 30, 2025.

Content

Restricted shares granted under the Company's 2016 Equity Incentive Plan in a transaction exempt under Rule 16b. Vesting of the restricted shares is partially dependent on the attainment of specified financial and market performance criterium; on November 18, 2025, the extent to which such performance criterium was achieved was certified. Subject to the reporting person's continued employment, the restricted shares will vest on November 30, 2025.