Robert Willett is CEO & President at COGNEX CORP (CGNX). They have made 48 open-market trades across 1 company since 2012, most recently 2026-05-20.
CIK 0001438093
Unrated. We grade insiders only on stock they chose to buy on the open market. Grants, option exercises and vesting say nothing about timing, so they don't count — which is why someone can file often and still have no grade. It isn't a bad sign: unrated buys beat every graded tier below A.
0 open-market purchases, against 48 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| CLH | 10,028 | $3.2M |
| CGNX | 23,120 | $1.2M |
| ALGM | 1,094 | $35K |
| Total | $4.5M |
Shares reported on the most recent Form 4, priced at the 2026-05-22 close.
Counted per filing, not per execution lot — a purchase filled in several tranches is one decision.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| CGNX | SELL · 10b5-1 | 2026-02-13 | 2026-02-17 | $59.50 | $128K | -4.6% | -11.9% | +8.5% |
| CGNX | SELL | 2026-02-12 | 2026-02-13 | $58.39 | $10.3M | -4.6% | -14.5% | +14.0% |
| CGNX | SELL | 2025-10-21 | 2025-10-22 | $49.51 | $664K | -10.4% | -20.7% | -16.4% |
| CGNX | SELL | 2020-11-09 | 2020-11-12 | $70.91 | $17.0M | +3.7% | +9.9% | +24.8% |
| CGNX | SELL | 2020-11-05 | 2020-11-09 | $72.64 | $17.4M | +1.9% | +8.8% | +26.5% |
| CGNX | SELL | 2020-11-03 | 2020-11-05 | $70.55 | $16.9M | -2.2% | +4.8% | +17.4% |
| CGNX | SELL | 2020-10-30 | 2020-11-03 | $66.73 | $24K | +1.5% | +6.4% | +19.2% |
| CGNX | SELL | 2020-09-02 | 2020-09-03 | $70.51 | $14.1M | -2.6% | +2.5% | +16.6% |
| CGNX | SELL | 2020-08-06 | 2020-08-10 | $67.88 | $9.5M | +0.2% | -4.7% | +6.9% |
| CGNX | SELL | 2020-08-04 | 2020-08-06 | $67.85 | $8.8M | -0.3% | -9.9% | +7.9% |
| CGNX | SELL | 2020-07-31 | 2020-08-04 | $66.14 | $19.8M | +0.3% | -0.9% | +0.5% |
| CGNX | SELL | 2019-12-12 | 2019-12-16 | $53.94 | $10.5M | +0.8% | +0.9% | -31.0% |
| CGNX | SELL | 2019-12-11 | 2019-12-12 | $51.82 | $3.6M | +3.5% | +4.9% | -26.9% |
| CGNX | SELL | 2019-12-09 | 2019-12-11 | $50.76 | $7.4M | +6.9% | +5.5% | -18.8% |
| CGNX | SELL | 2019-12-06 | 2019-12-09 | $51.06 | $2.6M | +11.8% | +10.6% | -20.9% |
| CGNX | SELL | 2019-11-27 | 2019-12-02 | $51.57 | $2.1M | +10.2% | +15.6% | -5.4% |
| CGNX | SELL | 2019-11-26 | 2019-11-29 | $50.49 | $5.0M | +4.0% | +11.3% | -11.7% |
| CGNX | SELL | 2019-11-08 | 2019-11-12 | $53.16 | $15.2M | -3.6% | +4.9% | +1.6% |
| CGNX | SELL | 2019-11-06 | 2019-11-08 | $53.82 | $4.0M | -5.1% | -5.0% | +3.3% |
| CGNX | SELL | 2017-11-02 | 2017-11-03 | $127.19 | $12.7M | +4.1% | -4.1% | -4.5% |
| CGNX | SELL | 2017-08-25 | 2017-08-28 | $103.09 | $1.7M | +3.4% | +5.9% | +37.2% |
| CGNX | SELL | 2017-08-14 | 2017-08-16 | $104.57 | $14.0M | +1.9% | +8.2% | +33.1% |
| CGNX | SELL | 2017-08-08 | 2017-08-10 | $103.37 | $2.6M | +2.3% | +11.1% | +35.6% |
| CGNX | SELL | 2017-05-15 | 2017-05-17 | $91.73 | $10.3M | +4.1% | +2.2% | +16.4% |
| CGNX | SELL | 2017-05-08 | 2017-05-10 | $89.79 | $7.9M | +2.8% | +4.1% | +14.0% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.