David S. Hendrickson is CTO at AEHR TEST SYSTEMS (AEHR). They have made 13 open-market trades across 1 company since 2006, most recently 2023-07-17.
CIK 0001244094
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.
1 open-market purchase totalling $20K since 2013, against 12 sales. Too few scored purchases to measure a record yet.
| Ticker | Shares | Value |
|---|---|---|
| AEHR | 84,783 | $5.1M |
Shares reported on the most recent Form 4, priced at the 2023-07-19 close.
| Ticker | Type | Traded | Filed | Price | Value | 7d Stock | 30d Stock | 90d Stock |
|---|---|---|---|---|---|---|---|---|
| AEHR | SELL | 2023-07-17 | 2023-07-19 | $51.45 | $1.4M | +8.1% | -16.2% | -24.1% |
| AEHR | SELL | 2023-01-11 | 2023-01-13 | $28.71 | $302K | +25.0% | +8.9% | +2.1% |
| AEHR | SELL | 2021-11-04 | 2021-11-08 | $25.08 | $627K | -16.6% | -31.2% | -48.1% |
| AEHR | SELL | 2021-09-28 | 2021-09-30 | $14.09 | $1.6M | +41.1% | +65.3% | +71.6% |
| AEHR | SELL · 10b5-1 | 2018-07-19 | 2018-07-23 | $2.74 | $12K | -6.0% | -1.2% | -19.8% |
| AEHR | SELL · 10b5-1 | 2018-07-17 | 2018-07-19 | $2.67 | $14K | -14.1% | -8.2% | -18.2% |
| AEHR | SELL · 10b5-1 | 2018-07-10 | 2018-07-11 | $2.74 | $959 | +0.4% | -8.2% | -27.5% |
| AEHR | SELL · 10b5-1 | 2018-07-03 | 2018-07-06 | $2.55 | $13K | +2.7% | -10.4% | -25.4% |
| AEHR | SELL · 10b5-1 | 2018-06-05 | 2018-06-06 | $2.65 | $13K | -4.9% | -8.7% | -11.2% |
| AEHR | SELL · 10b5-1 | 2018-05-22 | 2018-05-22 | $2.37 | $12K | +11.1% | +9.0% | +3.6% |
| AEHR | SELL · 10b5-1 | 2018-05-08 | 2018-05-09 | $2.39 | $12K | +4.9% | +23.9% | +1.8% |
| AEHR | SELL · 10b5-1 | 2018-04-24 | 2018-04-24 | $2.34 | $12K | +3.9% | +3.5% | +10.8% |
| AEHR | SELL · 10b5-1 | 2018-04-13 | 2018-04-17 | $2.42 | $10K | -7.0% | -8.5% | +3.5% |
| AEHR | SELL · 10b5-1 | 2018-04-10 | 2018-04-11 | $2.29 | $11K | +1.3% | -1.3% | +18.2% |
| AEHR | SELL · 10b5-1 | 2018-03-27 | 2018-03-28 | $2.42 | $2K | +3.1% | +6.7% | +10.7% |
| AEHR | SELL · 10b5-1 | 2018-03-13 | 2018-03-13 | $2.45 | $12K | +9.2% | +1.5% | +23.2% |
| AEHR | SELL · 10b5-1 | 2018-03-06 | 2018-03-06 | $2.36 | $12K | +15.7% | +2.2% | +15.2% |
| AEHR | SELL · 10b5-1 | 2018-02-13 | 2018-02-14 | $2.38 | $12K | -9.0% | +8.6% | -6.1% |
| AEHR | SELL · 10b5-1 | 2018-01-30 | 2018-01-31 | $2.66 | $13K | -7.8% | -14.8% | -9.7% |
| AEHR | SELL · 10b5-1 | 2018-01-16 | 2018-01-17 | $2.94 | $15K | -6.7% | -17.5% | -10.5% |
| AEHR | SELL · 10b5-1 | 2018-01-02 | 2018-01-03 | $2.71 | $14K | -3.4% | -14.6% | -23.1% |
| AEHR | SELL · 10b5-1 | 2017-12-12 | 2017-12-13 | $2.58 | $13K | +2.6% | +7.7% | -17.2% |
| AEHR | SELL · 10b5-1 | 2017-11-28 | 2017-11-30 | $2.79 | $14K | +2.0% | +9.8% | -10.2% |
| AEHR | SELL · 10b5-1 | 2017-11-14 | 2017-11-14 | $3.10 | $16K | -11.4% | -7.0% | -24.4% |
| AEHR | SELL · 10b5-1 | 2017-10-31 | 2017-10-31 | $3.44 | $17K | -13.4% | -29.2% | -26.2% |
Grouped by shared companies and similar filing behaviour. This is a similarity measure, not a ranking or a performance signal.