Notice of Proposed Sale · 144

Griffon Corp

GFFNYSEEQUITYCurrent

Notice of Proposed Sale

Filed Aug 5, 2026Accepted Aug 5, 2026, 4:16 PM EDTFiling CIK 50725Accession 0001949846-26-000470

View company →Permanent SEC source ↗

Structured filing — 144

primary_doc.xml

Open full document ↗

Notice of proposed sale. The proposed amounts below do not establish that a sale occurred.

Proposed-sale notice

Issuer: GRIFFON CORP
Issuer CIK: 0000050725
SEC file number: 001-06620
Phone: 2129575000
Person for whose account securities are to be sold: Harris Brian G
Relationships to issuer: Officer
Street: 712 FIFTH AVENUE
City: NEW YORK
State / country code: NY
Postal code: 10019

Securities proposed for sale

Securities proposed for sale · 1 reported row
Security	Proposed units	Aggregate market value	Units outstanding	Approximate sale date	Exchange	Broker / market maker
COMMON	11,050	1,141,150.00	45,866,631	08/05/2026	NYSE	THE CHARLES SCHWAB CORPORATION

Broker / market maker — proposed row 1, entry 1

Name: THE CHARLES SCHWAB CORPORATION
Street: 3000 Schwab Way
City: Westlake
State / country code: TX
Postal code: 76262

Acquisition of securities to be sold

Acquisition of securities to be sold · 1 reported row
Security	Acquired	Nature of acquisition	Acquired from	Amount acquired	Gift transaction	Payment date	Nature of payment
COMMON	12/17/2023	RSU / AWARDS	ISSUER	11,050	N	12/17/2023	NA

Sales reported in the preceding three months

Sales reported in the preceding three months · 2 reported rows
Seller	Security	Sale date	Amount sold	Gross proceeds
BRIAN G. HARRIS	COMMON	06/11/2026	7,500	712,722.00
BRIAN G. HARRIS	COMMON	06/30/2026	6,183	606,022.00

Seller — prior-sale row 1, entry 1

Name: BRIAN G. HARRIS
Street: 712 Fifth Ave
Street (continued): 18th Floor
City: New York
State / country code: NY
Postal code: 10019

Seller — prior-sale row 2, entry 1

Name: BRIAN G. HARRIS
Street: 712 Fifth Ave, 18th Floor
City: New York
State / country code: NY
Postal code: 10019

Prior-sale reporting

Nothing to report for the preceding three months: N

Notice signature

Notice date: 08/05/2026
Signed: BRIAN G. HARRIS
Plan adoption dates: 02/12/2026

Company context

Griffon Corporation is a leading provider of residential and commercial building products. The Company is the largest North American manufacturer and marketer of garage doors under the Clopay, IDEAL and Holmes brands, and rolling steel door and grille products under the Clopay, Cornell, and Cookson brands. The Company is also a leading provider of residential, industrial, and commercial ceiling fans sold under the Hunter, Casablanca, and Jan Fan brands.

Current securities

GFFNYSE · EQUITY · Current

Get the free weekly BCS email.