United States Homebuilding & Construction Supplies

Griffon Corp (GFF)

Track

Over the past 90 days, Griffon Corp insiders have executed 22 transactions, all of which were sales totaling approximately $13.6 million in net value. Key executives, including the CFO and President, have been active sellers. These transactions follow the company's May 2026 earnings report, where it reported a 6.06% earnings beat.
Ticker: GFF Exchange: NYS
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Buy signal Sell signal Earnings
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Top insiders
Trades
Sale 30 Jun 2026
Value US$4,741,726.73 | Price 383.33 | Shares 58,625 (+13.3%)
Proposed sale 30 Jun 2026
Value US$1,460,551.26 | Price 158.02 | Shares 72,544
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2026-07-02 2026-06-30 S Sale
3.2
Harris Brian G

EVP, Chief Financial Officer

Officer
58,625 +13.3%
383.33
US$4,741,727 		58,625 +13.3% 383.33 US$4,741,727
2026-07-02 2026-06-30 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
22,870 -41.2%
64.89
US$3,294,509 		22,870 -41.2% 64.89 US$3,294,509
2026-06-30 2026-06-30 PrS Proposed sale
3.2
Harris Brian G

Officer

Officer
72,544
158.02
US$1,460,551 		72,544 158.02 US$1,460,551
2026-06-30 2026-06-26 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
4 -0.0%
97.50
US$390 		4 -0.0% 97.50 US$390
2026-06-30 2026-06-26 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
52 -0.0%
96.14
US$4,999 		52 -0.0% 96.14 US$4,999
2026-06-30 2026-06-26 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
230 -0.0%
95.52
US$21,970 		230 -0.0% 95.52 US$21,970
2026-06-26 2026-06-25 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
1,190 -0.2%
97.27
US$115,751 		1,190 -0.2% 97.27 US$115,751
2026-06-26 2026-06-25 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
1,534 -0.2%
96.41
US$147,893 		1,534 -0.2% 96.41 US$147,893
2026-06-26 2026-06-25 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
5,149 -0.6%
95.62
US$492,347 		5,149 -0.6% 95.62 US$492,347
2026-06-26 2026-06-24 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
100 -0.0%
96.03
US$9,603 		100 -0.0% 96.03 US$9,603
2026-06-26 2026-06-24 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
4,626 -0.6%
95.45
US$441,552 		4,626 -0.6% 95.45 US$441,552
2026-06-18 2026-06-17 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
547 -0.1%
95.37
US$52,167 		547 -0.1% 95.37 US$52,167
2026-06-18 2026-06-16 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
97 -0.0%
96.25
US$9,336 		97 -0.0% 96.25 US$9,336
2026-06-18 2026-06-16 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
2,921 -0.4%
95.36
US$278,547 		2,921 -0.4% 95.36 US$278,547
2026-06-16 2026-06-15 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
3,272 -0.4%
95.40
US$312,149 		3,272 -0.4% 95.40 US$312,149
2026-06-16 2026-06-12 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
5,501 -0.7%
95.18
US$523,585 		5,501 -0.7% 95.18 US$523,585
2026-06-15 2026-06-12 S Sale
3.0
KRAMER RONALD J

Chairman of the Board and CEO

Executive Director
48,971 -2.7%
94.62
US$4,633,636 		48,971 -2.7% 94.62 US$4,633,636
2026-06-15 2026-06-12 S Sale
3.0
KRAMER RONALD J

Chairman of the Board and CEO

Executive Director
51,029 -2.7%
95.21
US$4,858,471 		51,029 -2.7% 95.21 US$4,858,471
2026-06-12 2026-06-12 PrS Proposed sale
3.0
Ronald J. Kramer

Director and Officer

Executive Director
100,000
90.78
US$9,078,000 		100,000 90.78 US$9,078,000
2026-06-12 2026-06-12 PrS Proposed sale
3.5
Robert Mehmel

Director

Non-Executive Director
50,000
93.72
US$4,686,000 		50,000 93.72 US$4,686,000
2026-06-15 2026-06-11 S Sale
3.2
Harris Brian G

EVP, Chief Financial Officer

Officer
7,500 -4.7%
95.03
US$712,725 		7,500 -4.7% 95.03 US$712,725
2026-06-11 2026-06-11 PrS Proposed sale
3.2
Harris Brian G

Officer

Officer
7,500
95.03
US$712,723 		7,500 95.03 US$712,723
2026-03-09 2026-03-05 B Purchase
3.1
ALPERT HENRY A
Non-Executive Director
1,000 +1.4%
79.99
US$79,990 		1,000 +1.4% 79.99 US$79,990
2026-02-18 2026-02-17 S Sale
3.7
Durborow W. Christopher

Vice President & CAO

Officer
10,000 -25.0%
91.97
US$919,700 		10,000 -25.0% 91.97 US$919,700
2026-02-17 2026-02-17 PrS Proposed sale
3.7
William C Durborow

Officer

Officer
10,000
92.07
US$920,700 		10,000 92.07 US$920,700
2026-02-17 2026-02-13 S Sale
3.6
Grabowsky Louis J.
Non-Executive Director
11,000 -20.9%
93.06
US$1,023,660 		11,000 -20.9% 93.06 US$1,023,660
2026-02-13 2026-02-13 PrS Proposed sale
3.6
Louis J. Grabowsky

Director

Non-Executive Director
11,000
93.64
US$1,030,040 		11,000 93.64 US$1,030,040
2026-02-17 2026-02-12 S Sale
2.5
Taylor Michelle L
Non-Executive Director
1,650 -15.5%
92.56
US$152,724 		1,650 -15.5% 92.56 US$152,724
2026-02-12 2026-02-12 PrS Proposed sale
2.5
Taylor Michelle L

Officer

Officer
1,650
92.83
US$153,170 		1,650 92.83 US$153,170
2026-02-11 2026-02-09 S Sale
3.3
SIGHT JAMES W
Non-Executive Director
3,070 -18.1%
96.15
US$295,180 		3,070 -18.1% 96.15 US$295,180
2026-02-11 2026-02-09 S Sale
3.0
Kaplan Seth L.

Sr VP, Gen. Counsel and Secy

Officer
400 -0.3%
97.46
US$38,984 		400 -0.3% 97.46 US$38,984
2026-02-11 2026-02-09 S Sale
3.0
Kaplan Seth L.

Sr VP, Gen. Counsel and Secy

Officer
3,240 -2.6%
96.67
US$313,211 		3,240 -2.6% 96.67 US$313,211
2026-02-11 2026-02-09 S Sale
3.0
Kaplan Seth L.

Sr VP, Gen. Counsel and Secy

Officer
4,274 -3.3%
95.61
US$408,637 		4,274 -3.3% 95.61 US$408,637
2026-02-11 2026-02-09 S Sale
3.0
Kaplan Seth L.

Sr VP, Gen. Counsel and Secy

Officer
7,086 -5.3%
94.67
US$670,832 		7,086 -5.3% 94.67 US$670,832
2026-02-09 2026-02-09 PrS Proposed sale
3.3
JAMES SIGHT

Director

Non-Executive Director
3,070
96.15
US$295,171 		3,070 96.15 US$295,171
2026-02-09 2026-02-09 PrS Proposed sale
3.0
Seth L. Kaplan

Officer

Officer
15,000
94.84
US$1,422,600 		15,000 94.84 US$1,422,600
2026-02-09 2026-02-09 PrS Proposed sale
3.0
Ronald J. Kramer

Director and Officer

Executive Director
100,000
94.84
US$9,484,000 		100,000 94.84 US$9,484,000
2025-02-10 2025-02-07 S Sale
3.3
Hegedus Samanta
Non-Executive Director
1,236 -5.1%
79.47
US$98,225 		1,236 -5.1% 79.47 US$98,225
2025-02-07 2025-02-07 PrS Proposed sale
3.3
Samanta Hegedus Stewart

Director

Non-Executive Director
1,236
80.89
US$99,980 		1,236 80.89 US$99,980
2025-02-07 2025-02-06 S Sale
3.3
SIGHT JAMES W
Non-Executive Director
1,360 -8.1%
81.00
US$110,160 		1,360 -8.1% 81.00 US$110,160
2025-02-07 2025-02-06 S Sale
2.8
TURNBULL CHERYL L
Non-Executive Director
3,000 -8.9%
80.80
US$242,400 		3,000 -8.9% 80.80 US$242,400
2025-02-06 2025-02-06 PrS Proposed sale
3.3
JAMES W SIGHT

Director

Non-Executive Director
1,360
81.00
US$110,160 		1,360 81.00 US$110,160
2025-02-06 2025-02-06 PrS Proposed sale
2.8
Cheryl L. Turnbull

Director

Non-Executive Director
3,000
80.91
US$242,730 		3,000 80.91 US$242,730
2024-12-06 2024-12-06 PrS Proposed sale
3.7
W. Christopher Durborow

Officer

Officer
5,170
80.71
US$417,271 		5,170 80.71 US$417,271
2024-12-06 2024-12-06 S Sale
3.7
Durborow W. Christopher

Vice President & CAO

Officer
5,170 -10.4%
80.38
US$415,565 		5,170 -10.4% 80.38 US$415,565
2024-12-03 2024-12-02 S Sale
3.0
Kaplan Seth L.

Sr VP, Gen. Counsel and Secy

Officer
100 -0.1%
83.97
US$8,397 		100 -0.1% 83.97 US$8,397
2024-12-03 2024-12-02 S Sale
3.0
Kaplan Seth L.

Sr VP, Gen. Counsel and Secy

Officer
4,239 -2.9%
83.35
US$353,321 		4,239 -2.9% 83.35 US$353,321
2024-12-03 2024-12-02 S Sale
3.0
Kaplan Seth L.

Sr VP, Gen. Counsel and Secy

Officer
8,327 -5.3%
82.40
US$686,145 		8,327 -5.3% 82.40 US$686,145
2024-12-03 2024-12-02 S Sale
3.2
Harris Brian G

EVP, Chief Financial Officer

Officer
4,557 -2.7%
83.11
US$378,732 		4,557 -2.7% 83.11 US$378,732
2024-12-03 2024-12-02 S Sale
3.2
Harris Brian G

EVP, Chief Financial Officer

Officer
13,983 -7.6%
82.43
US$1,152,619 		13,983 -7.6% 82.43 US$1,152,619
2024-11-29 2024-12-02 PrS Proposed sale
3.0
Seth L. Kaplan

Officer

Officer
12,666
82.96
US$1,050,771 		12,666 82.96 US$1,050,771
2024-11-29 2024-11-29 PrS Proposed sale
3.2
Harris Brian G

Officer

Officer
18,540
84.30
US$1,562,900 		18,540 84.30 US$1,562,900
2024-11-29 2024-11-26 S Sale
3.3
Renuart Victor Eugene
Non-Executive Director
4,500 -18.9%
84.46
US$380,070 		4,500 -18.9% 84.46 US$380,070
2024-11-26 2024-11-26 PrS Proposed sale
3.3
Renuart Victor Eugene

Director

Non-Executive Director
4,500
82.78
US$372,510 		4,500 82.78 US$372,510
2024-11-20 2024-11-18 S Sale
3.5
Sullivan Kevin F
Non-Executive Director
9,222 -18.3%
75.50
US$696,261 		9,222 -18.3% 75.50 US$696,261
2024-11-18 2024-11-18 PrS Proposed sale
3.5
Kevin F. Sullivan

Director

Non-Executive Director
9,222
73.81
US$680,676 		9,222 73.81 US$680,676
2024-11-15 2024-11-14 S Sale
3.2
Coben Jerome L
Non-Executive Director
2,052 -11.0%
76.34
US$156,650 		2,052 -11.0% 76.34 US$156,650
2024-11-15 2024-11-14 S Sale
3.6
Grabowsky Louis J.
Non-Executive Director
100 -0.2%
77.53
US$7,753 		100 -0.2% 77.53 US$7,753
2024-11-15 2024-11-14 S Sale
3.6
Grabowsky Louis J.
Non-Executive Director
10,900 -17.6%
77.02
US$839,518 		10,900 -17.6% 77.02 US$839,518
2024-11-15 2024-11-14 S Sale
3.3
Hegedus Samanta
Non-Executive Director
3,095 -11.3%
80.49
US$249,117 		3,095 -11.3% 80.49 US$249,117
2024-11-15 2024-11-14 S Sale
3.3
SIGHT JAMES W
Non-Executive Director
3,660 -18.0%
76.42
US$279,697 		3,660 -18.0% 76.42 US$279,697
2024-11-14 2024-11-14 PrS Proposed sale
3.3
JAMES W SIGHT

Director

Non-Executive Director
3,660
76.42
US$279,704 		3,660 76.42 US$279,704
2024-11-14 2024-11-14 PrS Proposed sale
3.2
COBEN REV TRUST

Director

Non-Executive Director
2,052
76.34
US$156,642 		2,052 76.34 US$156,642
2024-11-14 2024-11-14 PrS Proposed sale
3.6
Louis J. Grabowsky

Director

Non-Executive Director
11,000
80.52
US$885,720 		11,000 80.52 US$885,720
2024-11-14 2024-11-14 PrS Proposed sale
3.3
Samanta Hegedus Stewart

Director

Non-Executive Director
3,095
80.52
US$249,209 		3,095 80.52 US$249,209
2024-11-15 2024-11-13 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
1,183 -0.2%
76.20
US$90,145 		1,183 -0.2% 76.20 US$90,145
2024-11-15 2024-11-13 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
12,653 -1.7%
75.30
US$952,771 		12,653 -1.7% 75.30 US$952,771
2024-11-15 2024-11-13 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
7,664 -1.0%
74.82
US$573,420 		7,664 -1.0% 74.82 US$573,420
2024-11-15 2024-11-13 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
1,719 -0.2%
74.24
US$127,619 		1,719 -0.2% 74.24 US$127,619
2024-11-15 2024-11-13 S Sale
3.5
MEHMEL ROBERT F

President and COO

Officer
1,781 -0.2%
73.13
US$130,245 		1,781 -0.2% 73.13 US$130,245
2024-11-13 2024-11-13 S Sale
3.0
KRAMER RONALD J

Chairman of the Board and CEO

Executive Director
18,107 -1.0%
78.39
US$1,419,408 		18,107 -1.0% 78.39 US$1,419,408
2024-11-13 2024-11-13 S Sale
3.0
KRAMER RONALD J

Chairman of the Board and CEO

Executive Director
15,148 -0.8%
77.45
US$1,173,213 		15,148 -0.8% 77.45 US$1,173,213
2024-11-13 2024-11-13 S Sale
3.0
KRAMER RONALD J

Chairman of the Board and CEO

Executive Director
17,000 -0.9%
76.43
US$1,299,310 		17,000 -0.9% 76.43 US$1,299,310
2024-11-13 2024-11-13 S Sale
3.0
KRAMER RONALD J

Chairman of the Board and CEO

Executive Director
90,741 -4.5%
75.34
US$6,836,427 		90,741 -4.5% 75.34 US$6,836,427
2024-11-13 2024-11-13 S Sale
3.0
KRAMER RONALD J

Chairman of the Board and CEO

Executive Director
80,105 -3.8%
74.72
US$5,985,446 		80,105 -3.8% 74.72 US$5,985,446
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