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Griffon Corp (GFF)
NYSE: GFF · Real-Time Price · USD
Industrials · Building Products & Equipment
98.06+1.03 (+1.06%)
Insider Score
––Not scored
GFF Insider Score
Insiders filed in the last 90 days, but none of those trades qualified for scoring — round-trip buys and filings whose price is far off the market are excluded.
GFF Stock Insider Trading Activity
GFF stock’s insider trading shows 28 sales on the open market for an estimated $18.67M by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
Scored window · last 90 days0 qualifying buys0 insiders$0 bought— these are the numbers in the rankings table; the full history below shows every filing (buys, sells and older activity).
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| TURNBULL CHERYL L Director | Sell | 3,000 | $106.12 | $318.36K | 9.1% | 30,039 | Aug 13, 2026 | — | Form 4 |
| Sullivan Kevin F Director | Sell | 3,500 | $105.59 | $369.56K | 7.9% | 40,602 | Aug 13, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 3,240 | $107.16 | $347.20K | 0.4% | 723,032 | Aug 11, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 88 | $105.21 | $9.26K | 0.0% | 726,272 | Aug 10, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 3,638 | $104.08 | $378.64K | 0.5% | 729,273 | Aug 10, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 2,913 | $104.64 | $304.82K | 0.4% | 726,360 | Aug 10, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 13,464 | $107.43 | $1.45M | 1.8% | 733,464 | Aug 7, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 1,911 | $106.60 | $203.71K | 0.3% | 746,928 | Aug 7, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 553 | $108.09 | $59.77K | 0.1% | 732,911 | Aug 7, 2026 | — | Form 4 |
| Harris Brian G CFO | Sell | 5,267 | $107.11 | $564.15K | 3.9% | 128,649 | Aug 7, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 158 | $102.03 | $16.12K | 0.0% | 763,533 | Aug 6, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 211 | $103.52 | $21.84K | 0.0% | 763,322 | Aug 6, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 5,476 | $104.56 | $572.57K | 0.7% | 757,846 | Aug 6, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 6,933 | $105.46 | $731.15K | 0.9% | 750,913 | Aug 6, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 2,074 | $106.27 | $220.40K | 0.3% | 748,839 | Aug 6, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 5,434 | $103.53 | $562.58K | 0.7% | 765,908 | Aug 5, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 2,217 | $104.12 | $230.83K | 0.3% | 763,691 | Aug 5, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 617 | $98.68 | $60.89K | 0.1% | 785,283 | Aug 5, 2026 | — | Form 4 |
| Harris Brian G CFO | Sell | 8,817 | $103.08 | $908.86K | 6.1% | 136,149 | Aug 5, 2026 | — | Form 4 |
| Harris Brian G CFO | Sell | 2,233 | $104.01 | $232.25K | 1.6% | 133,916 | Aug 5, 2026 | — | Form 4 |
| KRAMER RONALD J CEO | Sell | 12,916 | $100.44 | $1.30M | 0.7% | 1,771,381 | Aug 5, 2026 | — | Form 4 |
| KRAMER RONALD J CEO | Sell | 17,322 | $101.58 | $1.76M | 1.0% | 1,754,059 | Aug 5, 2026 | — | Form 4 |
| KRAMER RONALD J CEO | Sell | 45,240 | $102.63 | $4.64M | 2.6% | 1,708,819 | Aug 5, 2026 | — | Form 4 |
| KRAMER RONALD J CEO | Sell | 16,402 | $103.37 | $1.70M | 1.0% | 1,692,417 | Aug 5, 2026 | — | Form 4 |
| KRAMER RONALD J CEO | Sell | 8,120 | $104.27 | $846.67K | 0.5% | 1,684,297 | Aug 5, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 2,283 | $99.67 | $227.55K | 0.3% | 783,000 | Aug 5, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 3,527 | $100.46 | $354.32K | 0.5% | 779,473 | Aug 5, 2026 | — | Form 4 |
| MEHMEL ROBERT F COO | Sell | 2,790 | $101.44 | $283.02K | 0.4% | 776,683 | Aug 5, 2026 | — | Form 4 |
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.