GFF insider trades & Congress trades
Griffon Corp: public insider filings and Congress disclosures, in one place.
Bourse has recorded 29 open-market insider transactions in Griffon Corp (GFF) (0 purchases with code P and 29 sales with code S), the most recent on August 13, 2026.
In the last 90 days: 0 purchases by 0 insiders ($0) and 6 sales by 3 ($1.73M).
Insider transactions
SEC Form 4, open-market purchases (P) and sales (S) only. Awards, option exercises and tax withholding are excluded. “After” shows the stock’s return over the month following the trade, where available.
| Date | Insider | Role | Type | Shares | Price | Value | After 1M |
|---|---|---|---|---|---|---|---|
| Aug 13, 2026 | Turnbull Cheryl L | – | Sell | 3,000 | $106.12 | $318K | −0.1% |
| Aug 13, 2026 | Sullivan Kevin F | – | Sell | 3,500 | $105.59 | $370K | −0.1% |
| Aug 11, 2026 | Mehmel Robert F | President and COO | Sell | 3,240 | $107.16 | $347K | −0.1% |
| Aug 10, 2026 | Mehmel Robert F | President and COO | Sell | 3,638 | $104.08 | $379K | −0.1% |
| Aug 10, 2026 | Mehmel Robert F | President and COO | Sell | 2,913 | $104.64 | $305K | −0.1% |
| Aug 10, 2026 | Mehmel Robert F | President and COO | Sell | 88 | $105.21 | $9K | −0.1% |
| Aug 7, 2026 | Mehmel Robert F | President and COO | Sell | 1,911 | $106.60 | $204K | −0.1% |
| Aug 7, 2026 | Mehmel Robert F | President and COO | Sell | 13,464 | $107.43 | $1.45M | −0.1% |
| Aug 7, 2026 | Mehmel Robert F | President and COO | Sell | 553 | $108.09 | $60K | −0.1% |
| Aug 7, 2026 | Harris Brian G | EVP, Chief Financial Officer | Sell | 5,267 | $107.11 | $564K | −0.1% |
| Aug 6, 2026 | Mehmel Robert F | President and COO | Sell | 158 | $102.03 | $16K | −0.1% |
| Aug 6, 2026 | Mehmel Robert F | President and COO | Sell | 211 | $103.52 | $22K | −0.1% |
| Aug 6, 2026 | Mehmel Robert F | President and COO | Sell | 5,476 | $104.56 | $573K | −0.1% |
| Aug 6, 2026 | Mehmel Robert F | President and COO | Sell | 6,933 | $105.46 | $731K | −0.1% |
| Aug 6, 2026 | Mehmel Robert F | President and COO | Sell | 2,074 | $106.27 | $220K | −0.1% |
| Aug 5, 2026 | Mehmel Robert F | President and COO | Sell | 617 | $98.68 | $61K | −0.1% |
| Aug 5, 2026 | Mehmel Robert F | President and COO | Sell | 2,283 | $99.67 | $228K | −0.1% |
| Aug 5, 2026 | Mehmel Robert F | President and COO | Sell | 3,527 | $100.46 | $354K | −0.1% |
| Aug 5, 2026 | Mehmel Robert F | President and COO | Sell | 2,790 | $101.44 | $283K | −0.1% |
| Aug 5, 2026 | Mehmel Robert F | President and COO | Sell | 5,341 | $102.59 | $548K | −0.1% |
| Aug 5, 2026 | Mehmel Robert F | President and COO | Sell | 5,434 | $103.53 | $563K | −0.1% |
| Aug 5, 2026 | Mehmel Robert F | President and COO | Sell | 2,217 | $104.12 | $231K | −0.1% |
| Aug 5, 2026 | Harris Brian G | EVP, Chief Financial Officer | Sell | 8,817 | $103.08 | $909K | −0.1% |
| Aug 5, 2026 | Harris Brian G | EVP, Chief Financial Officer | Sell | 2,233 | $104.01 | $232K | −0.1% |
| Aug 5, 2026 | Kramer Ronald J | Chairman of the Board and CEO | Sell | 12,916 | $100.44 | $1.30M | −0.1% |
| Aug 5, 2026 | Kramer Ronald J | Chairman of the Board and CEO | Sell | 17,322 | $101.58 | $1.76M | −0.1% |
| Aug 5, 2026 | Kramer Ronald J | Chairman of the Board and CEO | Sell | 45,240 | $102.63 | $4.64M | −0.1% |
| Aug 5, 2026 | Kramer Ronald J | Chairman of the Board and CEO | Sell | 16,402 | $103.37 | $1.70M | −0.1% |
| Aug 5, 2026 | Kramer Ronald J | Chairman of the Board and CEO | Sell | 8,120 | $104.27 | $847K | −0.1% |
Data as of November 8, 2026. Public filings only. A purchase or sale by a politician or an insider does not by itself imply any wrongdoing.
New to these filings? Read how to read a Form 4, how Congress trades are disclosed and what insider cluster buying means. Sources and limits are on the Methodology page.
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