Aehr Test Systems
Last updated September 27, 2026
Organization details
- Legal name
- Aehr Test Systems
- Ownership
- Public
- Status
- Active
- SIC code
- 3825 — Instruments For Meas & Testing of Electricity & Elec Signals
- Jurisdiction of incorporation
- California
- Headquarters city
- Fremont
- Headquarters state / province
- California
- Headquarters country
- United States
- Fiscal year end
- December
- Ticker symbol
- AEHR
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001040470
- EIN
- 94-2424084
Board of directors
-
Fariba Danesh · DirectorSince 2023
-
Gayn Erickson · Director · President and CEOSince 2023
-
Geoffrey Gates Scott · DirectorSince 2023
-
Howard T. Slayen · DirectorSince 2023
-
Laura Oliphant · DirectorSince 2023
-
Mario M. Rosati · DirectorSince 2023
-
Rhea J. Posedel · DirectorSince 2023
Chief executives
Gayn Erickson
· President and CEO
Dates unknown
Director election results
Annual meeting of October 20, 2025. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
92.7%
-
96.7%
-
97.0%
-
98.9%
-
99.1%
-
99.2%
Board connections
2 of this board's directors also sit on 2 other boards.
- via Fariba Danesh
- via Mario M. Rosati
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $0
- 0 purchases by 0 insiders
- Sold, last 12 months
- $60,775,603
- 72 sales by 13 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Sep 3, 2026 | WIMMERS DIDIER Officer (Executive VP of R&D) | Shares withheld for tax | −317 | $76.27 | $24,178 |
| Sep 1, 2026 | Siu Chris Officer (CFO) | Shares withheld for tax | −496 | $76.59 | $37,989 |
| Aug 17, 2026 | ROGERS VERNON Officer (Exec VP of Sales & Mktg.) | Open-market sale | −3,994 | $143.77 | $574,217 |
| Aug 14, 2026 | Rhea J. Posedel Director | Open-market sale | −5,973 | $140.00 | $836,220 |
| Aug 14, 2026 | Howard T. Slayen Director | Open-market sale | −5,700 | $133.03 | $758,264 |
| Aug 14, 2026 | ENGINEER ADIL Officer (Chief Operating Officer) | Gift | −500 | — | — |
| Aug 14, 2026 | ROGERS VERNON Officer (Exec VP of Sales & Mktg.) | Open-market sale | −1,000 | $134.00 | $134,000 |
| Aug 14, 2026 | ROGERS VERNON Officer (Exec VP of Sales & Mktg.) | Open-market sale | −1,000 | $139.00 | $139,000 |
| Aug 13, 2026 | SALAMONE ALBERTO Officer (EVP, PPBI BUSINESS) | Open-market sale | −4,200 | $128.00 | $537,600 |
| Aug 13, 2026 | SALAMONE ALBERTO Officer (EVP, PPBI BUSINESS) | Open-market sale | −5,472 | $127.50 | $697,688 |
| Aug 12, 2026 | Laura Oliphant Director | Open-market sale | −1,717 | $133.00 | $228,361 |
| Aug 12, 2026 | ENGINEER ADIL Officer (Chief Operating Officer) | Option exercise | +15,000 | $9.45 | $141,750 |
| Aug 12, 2026 | Geoffrey Gates Scott Director | Gift | −6,731 | — | — |
| Aug 12, 2026 | Rhea J. Posedel Director | Open-market sale | −8,413 | $130.00 | $1,093,690 |
| Aug 12, 2026 | Gayn Erickson Director, Officer (President and CEO) | Open-market sale | −1,548 | $132.27 | $204,750 |
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