GFF
GRIFFON CORP · Manufacturing · Market cap $4.3B
Insiders sold $32.8M net in the last 90 days ·5 sellers, 0 buyers· latest Form 4 filed Aug 14, 2026
Insider Buying
$80K
reported purchases (SEC code P)
Insider Selling
$36.7M
reported sales (SEC code S)
Unique Insiders
11
in the rolling window
Latest filing
Aug 14, 2026
Sullivan Kevin F
GRIFFON CORP (GFF) has 42 SEC Form 4 filings (77 transaction rows) in the rolling window, disclosed by 11 distinct insiders. Most recent filing: Aug 14, 2026.
Inside the rolling window, 11 insiders at GRIFFON CORP reported 1 open-market purchase totaling $80K and 26 open-market sales totaling $36.7M. The most active filer is President and COO MEHMEL ROBERT F with 13 filings. Insiders have net sold $34.9M over the trailing 6 months. The most recent open-market filing is a sale of 3,500 shares by Director Sullivan Kevin F, dated Aug 13, 2026, worth $370K.
- Industry:Construction Materials
- CEO:Ronald J. Kramer
- Employees:5,100
- HQ:New York City, NY, US
- IPO:1973-05-03
| Source | |||||||
|---|---|---|---|---|---|---|---|
Sullivan Kevin FFirst filing | Director | Sale | 3,500 | $370K | Aug 14 | -9.1% | SEC ↗ |
TURNBULL CHERYL LFirst filing | Director | Sale | 3,000 | $318K | Aug 14 | -9.1% | SEC ↗ |
| President and COO | Sale | 3,240 | $347K | Aug 13 | -10.7% | SEC ↗ | |
| President and COO | Sale | 15,928 | $1.7M | Aug 11 | -11.4% | SEC ↗ | |
| President and COO | Sale | 6,639 | $693K | Aug 11 | -11.4% | SEC ↗ | |
| EVP, Chief Financial Officer | Sale | 5,267 | $564K | Aug 11 | -11.4% | SEC ↗ | |
| President and COO | Sale | 22,209 | $2.3M | Aug 7 | — | SEC ↗ | |
| President and COO | Sale | 14,852 | $1.6M | Aug 7 | — | SEC ↗ | |
| Chairman of the Board and CEO | Sale | 100,000 | $10.2M | Aug 7 | — | SEC ↗ | |
| EVP, Chief Financial Officer | Sale | 11,050 | $1.1M | Aug 7 | — | SEC ↗ | |
| EVP, Chief Financial Officer | Sale | 6,183 | $606K | Jul 2 | — | SEC ↗ | |
| President and COO | Sale | 4,166 | $407K | Jul 2 | — | SEC ↗ | |
| President and COO | Sale | 286 | $27K | Jun 30 | — | SEC ↗ | |
| President and COO | Sale | 4,726 | $451K | Jun 26 | — | SEC ↗ | |
| President and COO | Sale | 7,873 | $756K | Jun 26 | — | SEC ↗ | |
| President and COO | Sale | 3,018 | $288K | Jun 18 | — | SEC ↗ | |
| President and COO | Sale | 547 | $52K | Jun 18 | — | SEC ↗ | |
MEHMEL ROBERT FFirst filing | President and COO | Sale | 5,501 | $524K | Jun 16 | — | SEC ↗ |
MEHMEL ROBERT FFirst filing | President and COO | Sale | 3,272 | $312K | Jun 16 | — | SEC ↗ |
KRAMER RONALD JFirst filing | Chairman of the Board and CEO | Sale | 100,000 | $9.5M | Jun 15 | — | SEC ↗ |
Harris Brian GFirst filing | EVP, Chief Financial Officer | Sale | 7,500 | $713K | Jun 15 | — | SEC ↗ |
ALPERT HENRY AFirst filing | Director | Purchase | 1,000 | $80K | Mar 9 | — | SEC ↗ |
Durborow W. ChristopherFirst filing | Vice President & CAO | Sale | 10,000 | $920K | Feb 18 | — | SEC ↗ |
Taylor Michelle LFirst filing | Director | Sale | 1,650 | $153K | Feb 17 | — | SEC ↗ |
Grabowsky Louis J.First filing | Director | Sale | 11,000 | $1.0M | Feb 17 | — | SEC ↗ |
Frequently asked questions
How many SEC Form 4 insider filings does GFF have?
GRIFFON CORP (GFF) has 42 SEC Form 4 filings (77 transaction rows) in the rolling 365-day window, disclosed by 11 distinct insiders. Most recent filing: Aug 14, 2026.
When was the most recent SEC Form 4 filing for GFF?
The most recent Form 4 filing for GFF on Tracefour is dated Aug 14, 2026.
Who is the most active insider at GFF?
The most active SEC Form 4 filer at GFF in the rolling window is President and COO MEHMEL ROBERT F, with 13 filings.
What is the net insider flow at GFF over the last 6 months?
Over the trailing 180 days, insiders at GFF have net sold $34.9M based on SEC Form 4 disclosures.
What is the total insider buy and sell value at GFF in the current window?
Inside the rolling window, insiders at GFF bought $80K and sold $36.7M based on SEC Form 4 filings.
Can I get alerts for GFF insider trading?
Yes. Tracefour sends a free email when a new SEC Form 4 purchase or sale is filed at GRIFFON CORP (GFF). Alerts are set per company from the page itself, there is no paid tier, and each email links to the original filing on SEC EDGAR.
Related companies
GRIFFON CORP is in the Manufacturing sector.