15 insiders reported 65 Form 4 transactions for GRIFFON CORP (GFF) over the past 18 months (most recent 2026-07-02). Recent activity: Harris Brian G (EVP, Chief Financial Officer) Sell 6,183 shares, MEHMEL ROBERT F (President and COO) Sell 4,166 shares, MEHMEL ROBERT F (President and COO) Sell 230 shares, MEHMEL ROBERT F (President and COO) Sell 52 shares, MEHMEL ROBERT F (President and COO) Sell 4 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-02 | Harris Brian G | EVP, Chief Financial Officer | Sell | 6,183 | $605,996 |
| 2026-07-02 | MEHMEL ROBERT F | President and COO | Sell | 4,166 | $407,268 |
| 2026-06-30 | MEHMEL ROBERT F | President and COO | Sell | 230 | $21,970 |
| 2026-06-30 | MEHMEL ROBERT F | President and COO | Sell | 52 | $4,999 |
| 2026-06-30 | MEHMEL ROBERT F | President and COO | Sell | 4 | $390 |
| 2026-06-26 | MEHMEL ROBERT F | President and COO | Sell | 4,626 | $441,552 |
| 2026-06-26 | MEHMEL ROBERT F | President and COO | Sell | 100 | $9,603 |
| 2026-06-26 | MEHMEL ROBERT F | President and COO | Sell | 5,149 | $492,347 |
| 2026-06-26 | MEHMEL ROBERT F | President and COO | Sell | 1,534 | $147,893 |
| 2026-06-26 | MEHMEL ROBERT F | President and COO | Sell | 1,190 | $115,751 |
| 2026-06-18 | MEHMEL ROBERT F | President and COO | Sell | 547 | $52,167 |
| 2026-06-18 | MEHMEL ROBERT F | President and COO | Sell | 97 | $9,336 |
| 2026-06-18 | MEHMEL ROBERT F | President and COO | Sell | 2,921 | $278,547 |
| 2026-06-16 | MEHMEL ROBERT F | President and COO | Sell | 5,501 | $523,585 |
| 2026-06-16 | MEHMEL ROBERT F | President and COO | Sell | 3,272 | $312,149 |
| 2026-03-09 | ALPERT HENRY A | Director | Buy | 1,000 | $79,990 |
| 2026-02-20 | Grabowsky Louis J. | Director | Buy | 1,340 | $0 |
| 2026-02-20 | Hegedus Samanta | Director | Buy | 1,340 | $0 |
| 2026-02-20 | TURNBULL CHERYL L | Director | Buy | 1,340 | $0 |
| 2026-02-20 | Diao H.C. Charles | Director | Buy | 1,340 | $0 |
| 2026-02-20 | Johnson Lacy M. | Director | Buy | 1,340 | $0 |
| 2026-02-20 | Taylor Michelle L | Director | Buy | 1,340 | $0 |
| 2026-02-20 | SIGHT JAMES W | Director | Buy | 1,340 | $0 |
| 2026-02-20 | ALPERT HENRY A | Director | Buy | 1,340 | $0 |
| 2026-02-20 | Sullivan Kevin F | Director | Buy | 1,340 | $0 |
Source: SEC Form 4 filings · as of 2026-07-02