Insider trades › Robert F. Mehmel
Robert F. Mehmel
A corporate insider: an officer, director or owner of more than 10% of a company. Insiders report their trades to the SEC on Form 4The form insiders use to report each purchase or sale of their company's stock. It is due within two business days of the trade. · Last filing Nov 6, 2026
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Using 13F.ai, list Robert F. Mehmel's open-market buys and sells across companies in the last two years, with the Form 4 links.
Using 13F.ai, how did the stocks Robert F. Mehmel bought perform after the purchase compared with the S&P 500?
Using 13F.ai, are other insiders at the same companies buying or selling at the same time as Robert F. Mehmel?
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Buying and selling by quarter
Dollars bought and sold on the open market over the last two years.
Bought Sold
By trade date, using the shares and price reported for each trade. Stock grants, option exercises and shares withheld for tax are left out.
Roles
The companies where this person reports as an insider, and their position at each, most recent first.
| Company | Role | Last filed |
|---|---|---|
| GFF Griffon Corporation | President and COO | Nov 6, 2026 |
Roles come from the filings themselves and can change over time.
Latest open-market trades
Purchases and sales at every company, most recent filing first.
| How the stock has done since the trade date, measured against the S&P 500 over the same days. It describes the stock, not the trader's actual gain or loss. | Filing | ||||||
|---|---|---|---|---|---|---|---|
| Nov 5, 2026 | GFF Griffon Corporation | Sale | 6,918 | $107.56 | $744.1K | -0.2% | Form 4 ↗ |
| Nov 5, 2026 | GFF Griffon Corporation | Sale | 825 | $108.13 | $89.2K | -0.2% | Form 4 ↗ |
| Aug 11, 2026 | GFF Griffon Corporation | Sale | 3,240 | $107.16 | $347.2K | +0.6% | Form 4 ↗ |
| Aug 10, 2026 | GFF Griffon Corporation | Sale | 88 | $105.21 | $9,258 | +2.8% | Form 4 ↗ |
| Aug 10, 2026 | GFF Griffon Corporation | Sale | 3,638 | $104.08 | $378.6K | +2.8% | Form 4 ↗ |
| Aug 10, 2026 | GFF Griffon Corporation | Sale | 2,913 | $104.64 | $304.8K | +2.8% | Form 4 ↗ |
| Aug 7, 2026 | GFF Griffon Corporation | Sale | 1,911 | $106.60 | $203.7K | +0.5% | Form 4 ↗ |
| Aug 7, 2026 | GFF Griffon Corporation | Sale | 13,464 | $107.43 | $1.4M | +0.5% | Form 4 ↗ |
| Aug 7, 2026 | GFF Griffon Corporation | Sale | 553 | $108.09 | $59.8K | +0.5% | Form 4 ↗ |
| Aug 6, 2026 | GFF Griffon Corporation | Sale | 158 | $102.03 | $16.1K | +0.8% | Form 4 ↗ |
| Aug 6, 2026 | GFF Griffon Corporation | Sale | 211 | $103.52 | $21.8K | +0.8% | Form 4 ↗ |
| Aug 6, 2026 | GFF Griffon Corporation | Sale | 5,476 | $104.56 | $572.6K | +0.8% | Form 4 ↗ |
| Aug 6, 2026 | GFF Griffon Corporation | Sale | 6,933 | $105.46 | $731.2K | +0.8% | Form 4 ↗ |
| Aug 6, 2026 | GFF Griffon Corporation | Sale | 2,074 | $106.27 | $220.4K | +0.8% | Form 4 ↗ |
| Aug 5, 2026 | GFF Griffon Corporation | Sale | 5,434 | $103.53 | $562.6K | +4.3% | Form 4 ↗ |
| Aug 5, 2026 | GFF Griffon Corporation | Sale | 2,217 | $104.12 | $230.8K | +4.3% | Form 4 ↗ |
| Aug 5, 2026 | GFF Griffon Corporation | Sale | 617 | $98.68 | $60.9K | +4.3% | Form 4 ↗ |
| Aug 5, 2026 | GFF Griffon Corporation | Sale | 2,283 | $99.67 | $227.5K | +4.3% | Form 4 ↗ |
| Aug 5, 2026 | GFF Griffon Corporation | Sale | 3,527 | $100.46 | $354.3K | +4.3% | Form 4 ↗ |
| Aug 5, 2026 | GFF Griffon Corporation | Sale | 2,790 | $101.44 | $283.0K | +4.3% | Form 4 ↗ |
| Aug 5, 2026 | GFF Griffon Corporation | Sale | 5,341 | $102.59 | $547.9K | +4.3% | Form 4 ↗ |
| Jun 30, 2026 | GFF Griffon Corporation | Sale | 4,166 | $97.76 | $407.3K | +6.8% | Form 4 ↗ |
| Jun 26, 2026 | GFF Griffon Corporation | Sale | 230 | $95.52 | $22.0K | +5.6% | Form 4 ↗ |
| Jun 26, 2026 | GFF Griffon Corporation | Sale | 52 | $96.14 | $4,999 | +5.6% | Form 4 ↗ |
| Jun 26, 2026 | GFF Griffon Corporation | Sale | 4 | $97.50 | $390 | +5.6% | Form 4 ↗ |
| Jun 25, 2026 | GFF Griffon Corporation | Sale | 5,149 | $95.62 | $492.3K | +6.9% | Form 4 ↗ |
| Jun 25, 2026 | GFF Griffon Corporation | Sale | 1,534 | $96.41 | $147.9K | +6.9% | Form 4 ↗ |
| Jun 25, 2026 | GFF Griffon Corporation | Sale | 1,190 | $97.27 | $115.8K | +6.9% | Form 4 ↗ |
| Jun 24, 2026 | GFF Griffon Corporation | Sale | 100 | $96.03 | $9,603 | +8.0% | Form 4 ↗ |
| Jun 24, 2026 | GFF Griffon Corporation | Sale | 4,626 | $95.45 | $441.6K | +8.0% | Form 4 ↗ |
| Jun 17, 2026 | GFF Griffon Corporation | Sale | 547 | $95.37 | $52.2K | +16.6% | Form 4 ↗ |
| Jun 16, 2026 | GFF Griffon Corporation | Sale | 97 | $96.25 | $9,336 | +11.3% | Form 4 ↗ |
| Jun 16, 2026 | GFF Griffon Corporation | Sale | 2,921 | $95.36 | $278.5K | +11.3% | Form 4 ↗ |
| Jun 15, 2026 | GFF Griffon Corporation | Sale | 3,272 | $95.40 | $312.1K | +11.1% | Form 4 ↗ |
| Jun 12, 2026 | GFF Griffon Corporation | Sale | 5,501 | $95.18 | $523.6K | +10.5% | Form 4 ↗ |
| Nov 13, 2024 | GFF Griffon Corporation | Sale | 1,719 | $74.24 | $127.6K | +4.3% | Form 4 ↗ |
| Nov 13, 2024 | GFF Griffon Corporation | Sale | 7,664 | $74.82 | $573.4K | +4.3% | Form 4 ↗ |
| Nov 13, 2024 | GFF Griffon Corporation | Sale | 1,183 | $76.20 | $90.1K | +4.3% | Form 4 ↗ |
| Nov 13, 2024 | GFF Griffon Corporation | Sale | 12,653 | $75.30 | $952.8K | +4.3% | Form 4 ↗ |
| Nov 13, 2024 | GFF Griffon Corporation | Sale | 1,781 | $73.13 | $130.2K | +4.3% | Form 4 ↗ |
| Nov 11, 2024 | GFF Griffon Corporation | Sale | 8,697 | $70.10 | $609.7K | +24.3% | Form 4 ↗ |
| Oct 16, 2024 | GFF Griffon Corporation | Sale | 912 | $70.06 | $63.9K | +23.0% | Form 4 ↗ |
| Oct 1, 2024 | GFF Griffon Corporation | Sale | 84 | $70.01 | $5,881 | +18.7% | Form 4 ↗ |
| Sep 27, 2024 | GFF Griffon Corporation | Sale | 3,265 | $70.04 | $228.7K | +19.3% | Form 4 ↗ |
Each row links to its Form 4. Since trade compares the stock’s move from the close on the trade date (or the next trading day) to its latest close with the S&P 500 over the same days, adjusted for splits and excluding dividends. It describes the stock, not what the trader made: we don’t know their purchase price, position size or later sales. A dash means the trade isn’t matched to a listed stock, or there is no closing price after it yet.
When several people report on the same filing, we list it under the first one named, so trades by someone usually listed second may be missing here. Information, not investment advice: see the disclaimer.