Griffon Corp. (GFF) Insider Trading
Directors, officers and holders of more than 10% of GFF report their trades in its stock on SEC Form 4, within two business days. Each row below is one Form 4 transaction line. The one-letter code says what kind of transaction it was: only P (purchase) and S (sale) are open-market or private trades; awards, option exercises, tax withholding and gifts carry other codes.
Recent Form 4 transactions
The 50 most recent of 170 transactions on file: 1 with code P, 44 with code S and 5 with other codes.
| Date | Insider | Title | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Aug 13, 2026 | Sullivan Kevin F | Director | S Sale | 3,500 | $105.59 | $369,565 |
| Aug 13, 2026 | TURNBULL CHERYL L | Director | S Sale | 3,000 | $106.12 | $318,360 |
| Aug 11, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 3,240 | $107.16 | $347,198 |
| Aug 10, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 88 | $105.21 | $9,258 |
| Aug 10, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 3,638 | $104.08 | $378,643 |
| Aug 10, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 2,913 | $104.64 | $304,816 |
| Aug 7, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 553 | $108.09 | $59,774 |
| Aug 7, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 1,911 | $106.60 | $203,713 |
| Aug 7, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 13,464 | $107.43 | $1,446,438 |
| Aug 7, 2026 | Harris Brian G | EVP, Chief Financial Officer | S Sale | 5,267 | $107.11 | $564,148 |
| Aug 6, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 2,074 | $106.27 | $220,404 |
| Aug 6, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 158 | $102.03 | $16,121 |
| Aug 6, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 5,476 | $104.56 | $572,571 |
| Aug 6, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 211 | $103.52 | $21,843 |
| Aug 6, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 6,933 | $105.46 | $731,154 |
| Aug 5, 2026 | KRAMER RONALD J | Chairman of the Board and CEO | S Sale | 12,916 | $100.44 | $1,297,283 |
| Aug 5, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 617 | $98.68 | $60,886 |
| Aug 5, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 2,790 | $101.44 | $283,018 |
| Aug 5, 2026 | Harris Brian G | EVP, Chief Financial Officer | S Sale | 8,817 | $103.08 | $908,856 |
| Aug 5, 2026 | Harris Brian G | EVP, Chief Financial Officer | S Sale | 2,233 | $104.01 | $232,254 |
| Aug 5, 2026 | KRAMER RONALD J | Chairman of the Board and CEO | S Sale | 8,120 | $104.27 | $846,672 |
| Aug 5, 2026 | KRAMER RONALD J | Chairman of the Board and CEO | S Sale | 17,322 | $101.58 | $1,759,569 |
| Aug 5, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 5,341 | $102.59 | $547,933 |
| Aug 5, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 2,217 | $104.12 | $230,834 |
| Aug 5, 2026 | KRAMER RONALD J | Chairman of the Board and CEO | S Sale | 16,402 | $103.37 | $1,695,475 |
| Aug 5, 2026 | KRAMER RONALD J | Chairman of the Board and CEO | S Sale | 45,240 | $102.63 | $4,642,981 |
| Aug 5, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 2,283 | $99.67 | $227,547 |
| Aug 5, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 3,527 | $100.46 | $354,322 |
| Aug 5, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 5,434 | $103.53 | $562,582 |
| Jun 30, 2026 | Harris Brian G | EVP, Chief Financial Officer | S Sale | 6,183 | $98.01 | $605,996 |
| Jun 30, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 4,166 | $97.76 | $407,268 |
| Jun 25, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 5,149 | $95.62 | $492,347 |
| Jun 25, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 1,534 | $96.41 | $147,893 |
| Jun 25, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 1,190 | $97.27 | $115,751 |
| Jun 24, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 4,626 | $95.45 | $441,552 |
| Jun 24, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 100 | $96.03 | $9,603 |
| Jun 17, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 547 | $95.37 | $52,167 |
| Jun 16, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 97 | $96.25 | $9,336 |
| Jun 16, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 2,921 | $95.36 | $278,547 |
| Jun 15, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 3,272 | $95.40 | $312,149 |
| Jun 12, 2026 | KRAMER RONALD J | Chairman of the Board and CEO | S Sale | 51,029 | $95.21 | $4,858,471 |
| Jun 12, 2026 | KRAMER RONALD J | Chairman of the Board and CEO | S Sale | 48,971 | $94.62 | $4,633,636 |
| Jun 12, 2026 | MEHMEL ROBERT F | President and COO | S Sale | 5,501 | $95.18 | $523,585 |
| Jun 11, 2026 | Harris Brian G | EVP, Chief Financial Officer | S Sale | 7,500 | $95.03 | $712,725 |
| Mar 5, 2026 | ALPERT HENRY A | Director | P Purchase | 1,000 | $79.99 | $79,990 |
| Feb 18, 2026 | Diao H.C. Charles | Director | A Award | 1,340 | Not measured | Not measured |
| Feb 18, 2026 | Hegedus Samanta | Director | A Award | 1,340 | Not measured | Not measured |
| Feb 18, 2026 | SIGHT JAMES W | Director | A Award | 1,340 | Not measured | Not measured |
| Feb 18, 2026 | Sullivan Kevin F | Director | A Award | 1,340 | Not measured | Not measured |
| Feb 18, 2026 | ALPERT HENRY A | Director | A Award | 1,340 | Not measured | Not measured |
The full Form 4 history is on the GFF company page (Insider Trades card, View all).
Questions about this data
Which insider transactions are open-market trades?
Code P (open market or private purchase) and code S (open market or private sale). Code F is shares withheld to pay tax on vesting stock, A is an award from the company, M and X are option exercises and G is a gift. None of those is the insider choosing to buy or sell in the market.
How quickly are insider trades reported?
A Form 4 is due before the end of the second business day after the trade. The date shown is the transaction date from the form.
Who has to file Form 4?
Officers, directors and beneficial owners of more than 10% of a class of the company’s registered equity, under Section 16 of the Securities Exchange Act.
Look up any code in the Form 4 transaction code reference, or read Form 4 codes explained.