AEHR · Insider Trading
Aehr Test Systems
Every open-market purchase and sale reported by AEHR officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-13 | Adil Engineer | Chief Operating Officer | F | −547 | −$46.30K |
| 2026-10-13 | Chris Siu | CFO | F | −987 | −$83.54K |
| 2026-10-13 | Vernon Rogers | Exec VP of Sales & Mktg. | F | −426 | −$36.06K |
| 2026-10-13 | Donald P. Richmond II | CTO | F | −388 | −$32.84K |
| 2026-10-13 | Gayn Erickson | President and CEO | F | −2,675 | −$226.41K |
| 2026-10-13 | Alistair N Sporck | VP Contactor Business Unit | F | −295 | −$24.97K |
| 2026-10-05 | Vernon Rogers | Exec VP of Sales & Mktg. | F | −476 | −$51.03K |
| 2026-10-05 | Chris Siu | CFO | F | −1,164 | −$124.79K |
| 2026-10-05 | Alberto Salamone | EVP, PPBI BUSINESS | F | −556 | −$59.61K |
| 2026-10-05 | Alistair N Sporck | VP Contactor Business Unit | F | −345 | −$36.99K |
| 2026-10-05 | Adil Engineer | Chief Operating Officer | F | −620 | −$66.47K |
| 2026-10-05 | Gayn Erickson | President and CEO | F | −3,239 | −$347.25K |
| 2026-10-05 | Donald P. Richmond II | CTO | F | −439 | −$47.07K |
| 2026-10-02 | Adil Engineer | Chief Operating Officer | MIXED | +632 | −$5.09K |
| 2026-10-02 | Didier Wimmers | Executive VP of R&D | MIXED | +1,257 | +$3.26K |
| 2026-10-02 | Donald P. Richmond II | CTO | MIXED | +988 | −$622 |
| 2026-10-02 | Alberto Salamone | EVP, PPBI BUSINESS | MIXED | +1,467 | +$5.52K |
| 2026-10-02 | Gayn Erickson | President and CEO | MIXED | +554 | −$43.67K |
| 2026-10-02 | Alistair N Sporck | VP Contactor Business Unit | MIXED | +1,167 | +$2.66K |
| 2026-10-02 | Vernon Rogers | Exec VP of Sales & Mktg. | MIXED | +1,549 | +$3.03K |
| 2026-10-01 | Chris Siu | CFO | MIXED | +895 | −$12.44K |
| 2026-09-03 | Didier Wimmers | Executive VP of R&D | F | −317 | −$24.18K |
| 2026-09-01 | Chris Siu | CFO | F | −496 | −$37.99K |
| 2026-08-18 | Vernon Rogers | Exec VP of Sales & Mktg. | Sell | −5,994 | −$847.22K |
| 2026-08-14 | Adil Engineer | Chief Operating Officer | G | −500 | — |
| 2026-08-14 | Rhea J Posedel | Director | Sell | −5,973 | −$836.22K |
| 2026-08-14 | Alberto Salamone | EVP, PPBI BUSINESS | Sell | −9,672 | −$1.24M |
| 2026-08-14 | Howard T Slayen | Director | Sell | −5,700 | −$758.26K |
| 2026-08-13 | Geoffrey Gates Scott | Director | MIXED | −26,731 | −$2.63M |
| 2026-08-13 | Gayn Erickson | President and CEO | Sell | −40,000 | −$5.23M |
| 2026-08-13 | Adil Engineer | Chief Operating Officer | MIXED | — | −$1.82M |
| 2026-08-13 | Laura Oliphant | Director | Sell | −1,717 | −$228.36K |
| 2026-08-13 | Rhea J Posedel | Director | Sell | −8,413 | −$1.09M |
| 2026-08-11 | Alistair N Sporck | VP Contactor Business Unit | Sell | −1,000 | −$108.49K |
| 2026-08-06 | Alistair N Sporck | VP Contactor Business Unit | Sell | −2,000 | −$201.92K |
| 2026-08-06 | Alistair N Sporck | VP Contactor Business Unit | Sell | −2,000 | −$201.92K |
| 2026-08-04 | Laura Oliphant | Director | G | −500 | — |
| 2026-08-04 | Howard T Slayen | Director | Sell | −20,000 | −$2.17M |
| 2026-08-03 | Alberto Salamone | EVP, PPBI BUSINESS | F | −204 | −$16.32K |
| 2026-07-30 | Howard T Slayen | Director | G | −5,000 | — |
| 2026-07-27 | Gayn Erickson | President and CEO | F | −1,057 | −$81.90K |
| 2026-07-27 | Donald P. Richmond II | CTO | F | −102 | −$7.90K |
| 2026-07-27 | Vernon Rogers | Exec VP of Sales & Mktg. | F | −198 | −$15.34K |
| 2026-07-27 | Adil Engineer | Chief Operating Officer | F | −142 | −$11.00K |
| 2026-07-27 | Alistair N Sporck | VP Contactor Business Unit | F | −133 | −$10.30K |
| 2026-07-21 | Geoffrey Gates Scott | Director | G | −2,874 | — |
| 2026-07-20 | Alistair N Sporck | VP Contactor Business Unit | F | −334 | −$27.07K |
| 2026-07-17 | Geoffrey Gates Scott | Director | MIXED | −30,000 | −$1.64M |
| 2026-07-15 | Gayn Erickson | President and CEO | F | −3,447 | −$248.22K |
| 2026-07-14 | Donald P. Richmond II | CTO | F | −328 | −$23.62K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| Rhea J Posedel | Director | 429,145 | $27.18M |
| Gayn Erickson | President and CEO | 349,884 | $22.16M |
| Vernon Rogers | Exec VP of Sales & Mktg. | 186,879 | $11.84M |
| Donald P. Richmond II | CTO | 186,728 | $11.83M |
| Howard T Slayen | Director | 140,667 | $8.91M |
| Chris Siu | CFO | 81,778 | $5.18M |
| Geoffrey Gates Scott | Director | 75,603 | $4.79M |
| Adil Engineer | Chief Operating Officer | 45,942 | $2.91M |
| Alberto Salamone | EVP, PPBI BUSINESS | 42,873 | $2.72M |
| Avijit K. Ray-Chaudhuri | Executive VP of R&D | 28,318 | $1.79M |
| Alistair N Sporck | VP Contactor Business Unit | 28,251 | $1.79M |
| Fariba Danesh | Director | 21,509 | $1.36M |
| Laura Oliphant | Director | 16,100 | $1.02M |
| Didier Wimmers | Executive VP of R&D | 13,636 | $863.57K |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the AEHR quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.