According to recent filings covering the 90 days ending January 16, 2026, the three most significant insider holders at Aehr Test Systems are President And Ceo Gayn Erickson (543.75K shares), Director Rhea J Posedel (542.14K shares), Director Howard T Slayen (218.33K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Gayn Erickson | President And Ceo | 543,747 | 14 Jan, 2026 |
| Rhea J Posedel | Director | 542,140 | 24 Jul, 2025 |
| Howard T Slayen | Director | 218,328 | 05 Nov, 2025 |
| Donald P. Ii Richmond | Cto | 213,334 | 14 Jan, 2026 |
| Vernon Rogers | Exec Vp Of Sales & Mktg. | 177,366 | 14 Jan, 2026 |
| Geoffrey Gates Scott | Director | 123,114 | 03 Jul, 2025 |
| Kenneth B. Spink | Vp Of Finance And Cfo | 109,866 | 19 Jul, 2023 |
| David S Hendrickson | Former Cto | 84,783 | 19 Jul, 2023 |
| Chris Siu | Cfo | 77,837 | 12 Jan, 2026 |
| Alberto Salamone | Evp And Ppbi Business | 77,140 | 02 Jan, 2026 |
| Adil Engineer | Chief Operating Officer | 45,839 | 12 Jan, 2026 |
| Alistair N Sporck | Vp Contactor Business Unit | 33,906 | 12 Jan, 2026 |
| Laura Oliphant | Director | 30,643 | 03 Jul, 2025 |
| Avijit K. Ray-Chaudhuri | Executive Vp Of R&D | 28,318 | 29 Oct, 2024 |
| Fariba Danesh | Director | 23,351 | 10 Oct, 2025 |
| Didier Wimmers | Executive Vp Of R&D | 14,550 | 03 Dec, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 14 Jan, 2026 | Gayn Erickson | Common Stock | D | 2,680 | $25.97 | 252,119 | D | F |
| 14 Jan, 2026 | Donald P. Ii Richmond | Common Stock | D | 343 | $25.97 | 213,334 | D | F |
| 14 Jan, 2026 | Vernon Rogers | Common Stock | D | 464 | $25.97 | 177,366 | D | F |
| 11 Jan, 2026 | Gayn Erickson | Common Stock | D | 3,531 | $26.32 | 254,799 | D | F |
| 11 Jan, 2026 | Chris Siu | Common Stock | D | 799 | $26.32 | 72,626 | D | F |
| 11 Jan, 2026 | Donald P. Ii Richmond | Common Stock | D | 486 | $26.32 | 213,677 | D | F |
| 11 Jan, 2026 | Donald P. Ii Richmond | Common Stock | D | 576 | $26.32 | 213,587 | D | F |
| 11 Jan, 2026 | Vernon Rogers | Common Stock | D | 576 | $26.32 | 177,830 | D | F |
| 11 Jan, 2026 | Adil Engineer | Common Stock | D | 444 | $26.32 | 45,839 | D | F |
| 11 Jan, 2026 | Alistair N Sporck | Common Stock | D | 239 | $26.32 | 28,692 | D | F |
| 02 Jan, 2026 | Gayn Erickson | Common Stock | D | 2,765 | $22.16 | 258,330 | D | F |
| 02 Jan, 2026 | Chris Siu | Common Stock | D | 940 | $22.16 | 73,425 | D | F |
| 02 Jan, 2026 | Donald P. Ii Richmond | Common Stock | D | 355 | $22.16 | 214,163 | D | F |
| 02 Jan, 2026 | Vernon Rogers | Common Stock | D | 386 | $22.16 | 178,406 | D | F |
| 02 Jan, 2026 | Adil Engineer | Common Stock | D | 501 | $22.16 | 46,283 | D | F |
| 02 Jan, 2026 | Alistair N Sporck | Common Stock | D | 297 | $22.16 | 28,931 | D | F |
| 02 Jan, 2026 | Alberto Salamone | Common Stock | D | 636 | $22.16 | 77,140 | D | F |
| 03 Dec, 2025 | Didier Wimmers | Common Stock | D | 371 | $24.76 | 14,550 | D | F |
| 01 Dec, 2025 | Chris Siu | Common Stock | D | 349 | $22.53 | 74,365 | D | F |
| 05 Nov, 2025 | Howard T Slayen | - | - | 218,328 | D |