Form 4 for GFF GRIFFON CORP

Accepted 2026-06-26 17:00:16 ET · period of report 2026-06-24 · accession 0001628280-26-045816 · SEC index · Original document

Summary rows

Aggregated the way they appear in lists: one row per insider, transaction code and security table.

X	Filed	Traded	Ticker	Insider	Title	Type	Price	Qty	Owned	ΔOwn	Value
MT	2026-06-26 17:00	2026-06-24+	GFF	MEHMEL ROBERT F	Pres, COO	S - Sale	$95.81	-12.6K	790.4K	-2%	-$1.21M

Purchase Sale Sale after option exercise All abbreviations

#	Table	Security	Date	Code	A/D	Shares	Price	Owned after	Own	Exercise / expiry	Underlying	Footnotes
1	Common	Common Stock	2026-06-24	S	D	4,626	$95.45	798,325	D	—	—	(F1) The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions at prices ranging from $95.02 to $95.98, 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), (2), (3) and (4) to this Form 4.
2	Common	Common Stock	2026-06-24	S	D	100	$96.03	798,225	D	—	—
3	Common	Common Stock	2026-06-25	S	D	5,149	$95.62	793,076	D	—	—	(F2) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.11 to $95.97, inclusive.
4	Common	Common Stock	2026-06-25	S	D	1,534	$96.41	791,542	D	—	—	(F3) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.00 to $96.80, inclusive.
5	Common	Common Stock	2026-06-25	S	D	1,190	$97.27	790,352	D	—	—	(F4) The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $97.02 to $97.64, inclusive.