$GFF insider trading
Over the last 12 months, Griffon insiders reported 1 buy totaling $80K and 21 sales totaling $36.7M across SEC Form 4 filings. 59% of those filings were made under pre-arranged 10b5-1 trading plans.
- Bought · 12m
- $80K 1 event
- Sold · 12m
- $36.7M 21 events
- Events · 12m
- 22 Form 4 filings, grouped
- Insiders · 12m
- 11 distinct reporters
- 10b5-1 share
- 59% of events, not dollars
All insider trades
Scroll the table sideways for price, value and marks.
| Date | Insider | Type | Shares | Avg price | Value | Δ stake | Marks |
|---|---|---|---|---|---|---|---|
| Aug 13, 2026 | TURNBULL CHERYL LD | ▼ Sale | 3,000 | $106.12 | $318K | -9.1% | — |
| Aug 13, 2026 | Sullivan Kevin FD | ▼ Sale | 3,500 | $105.59 | $370K | -7.9% | — |
| Aug 11, 2026 | MEHMEL ROBERT FPresident and COO · O | ▼ Sale | 3,240 | $107.16 | $347K | -0.4% | plan |
| Aug 10, 2026 | MEHMEL ROBERT FPresident and COO · O | ▼ Sale | 22,567 | $106.47 | $2.4M | -3% | plan · 6 tranches |
| Aug 7, 2026 | Harris Brian GEVP, Chief Financial Officer · O | ▼ Sale | 5,267 | $107.11 | $564K | -3.9% | plan |
| Aug 6, 2026 | MEHMEL ROBERT FPresident and COO · O | ▼ Sale | 37,061 | $103.32 | $3.8M | -4.7% | plan · 12 tranches |
| Aug 5, 2026 | Harris Brian GEVP, Chief Financial Officer · O | ▼ Sale | 11,050 | $103.27 | $1.1M | -7.6% | plan · 2 tranches |
| Aug 5, 2026 | KRAMER RONALD JChairman of the Board and CEO · O·D | ▼ Sale | 100,000 | $102.42 | $10.2M | -5.6% | plan · 5 tranches |
| Jun 30, 2026 | MEHMEL ROBERT FPresident and COO · O | ▼ Sale | 4,166 | $97.76 | $407K | -0.5% | plan |
| Jun 30, 2026 | Harris Brian GEVP, Chief Financial Officer · O | ▼ Sale | 6,183 | $98.01 | $606K | -4.1% | plan |
| Jun 26, 2026 | MEHMEL ROBERT FPresident and COO · O | ▼ Sale | 286 | $95.66 | $27K | — | plan · 3 tranches |
| Jun 25, 2026 | MEHMEL ROBERT FPresident and COO · O | ▼ Sale | 12,599 | $95.81 | $1.2M | -1.6% | plan · 5 tranches |
| Jun 17, 2026 | MEHMEL ROBERT FPresident and COO · O | ▼ Sale | 3,565 | $95.39 | $340K | -0.4% | plan · 3 tranches |
| Jun 15, 2026 | MEHMEL ROBERT FPresident and COO · O | ▼ Sale | 8,773 | $95.26 | $836K | -1.1% | plan · 2 tranches |
| Jun 12, 2026 | KRAMER RONALD JChairman of the Board and CEO · O·D | ▼ Sale | 100,000 | $94.92 | $9.5M | -5.3% | 2 tranches |
| Jun 11, 2026 | Harris Brian GEVP, Chief Financial Officer · O | ▼ Sale | 7,500 | $95.03 | $713K | -4.7% | plan |
| Mar 5, 2026 | ALPERT HENRY AD | ▲ Buy | 1,000 | $79.99 | $80K | +1.4% | — |
| Feb 17, 2026 | Durborow W. ChristopherVice President & CAO · O | ▼ Sale | 10,000 | $91.97 | $920K | -25% | — |
| Feb 13, 2026 | Grabowsky Louis J.D | ▼ Sale | 11,000 | $93.06 | $1.0M | -20.9% | — |
| Feb 12, 2026 | Taylor Michelle LD | ▼ Sale | 1,650 | $92.56 | $153K | -15.5% | — |
| Feb 9, 2026 | Kaplan Seth L.Sr VP, Gen. Counsel and Secy · O | ▼ Sale | 15,000 | $95.44 | $1.4M | -11.1% | 4 tranches |
| Feb 9, 2026 | SIGHT JAMES WD | ▼ Sale | 3,070 | $96.15 | $295K | -18.1% | — |
Every $GFF filing on this page is one API call away
The same Form 4 data over REST or MCP, already grouped into events with the plan flag and the dollar value read. A free key does 100 calls a day and needs no card. Prefer email? Griffon filings can reach your inbox instead.
Corporate insiders — officers, directors and 10%+ owners — must report their trades to the SEC on Form 4 within two business days. This page shows open-market activity: purchases (code P), sales (S) and dispositions back to the issuer (D). Scheduled compensation events such as stock grants and option exercises are also filed on Form 4 but carry no trading signal, so they are not shown and counts here can be lower than the raw EDGAR filing total. We group each filing's transactions into one economic event (a laddered 10b5-1 sale is one event, not 25 rows), flag pre-arranged plans and late filings, and link every event to its AI-scored article in the $GFF feed.