AEHR TEST SYSTEMS (AEHR) Stock
5 of the hedge funds AlphaScala tracks reported AEHR in 13F filings for the quarter ended Jun 30, 2026; the largest reported position is D.E. Shaw's at $113.10M. Company insiders reported 0 open-market buys and 18 sales on SEC Form 4 in the 90 days to Oct 21, 2026.
Which hedge funds own AEHR?
From 13F filings| Fund | Shares Held | Position Value | Change vs prior Q |
|---|---|---|---|
| D.E. Shaw David Shaw | 1.18M | $113.10M | +245% |
| Citadel Ken Griffin | 401K | $38.49M | +184% |
| Marshall Wace | 383K | $36.77M | +3648% |
| Renaissance Technologies Jim Simons (founder) | 135K | $12.92M | NEW |
| Millennium Management Israel Englander | 109K | $10.46M | +14% |
13F holdings as of Jun 30, 2026
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SEC Form 4 filings| Date | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| Aug 17, 26 | Rogers Vernon | Exec VP of Sales & Mktg. | SELL | 4.0K | $574K |
| Aug 14, 26 | Posedel Rhea J | Director | SELL | 6.0K | $836K |
| Aug 14, 26 | Slayen Howard T | Director | SELL | 5.7K | $758K |
| Aug 14, 26 | Rogers Vernon | Exec VP of Sales & Mktg. | SELL | 1.0K | $134K |
| Aug 14, 26 | Rogers Vernon | Exec VP of Sales & Mktg. | SELL | 1.0K | $139K |
| Aug 13, 26 | Salamone Alberto | EVP, PPBI BUSINESS | SELL | 4.2K | $538K |
| Aug 13, 26 | Salamone Alberto | EVP, PPBI BUSINESS | SELL | 5.5K | $698K |
| Aug 12, 26 | Oliphant Laura | Director | SELL | 1.7K | $228K |
| Aug 12, 26 | Engineer Adil | Chief Operating Officer | SELL | 7.5K | $982K |
| Aug 12, 26 | Engineer Adil | Chief Operating Officer | SELL | 7.5K | $983K |
SEC Form 4 filings as of Oct 21, 2026
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Powered by TradingViewWhat does AEHR TEST SYSTEMS do?
Aehr Test Systems is a leading provider of semiconductor test and burn-in solutions headquartered in Fremont, California. The company designs and manufactures advanced testing systems that evaluate the reliability and performance of semiconductor devices across wafer level, singulated die, and packaged part forms. Its primary product lines include the FOX-P family of systems for various semiconductor types and the Sonoma family of ultra-high-power systems specifically designed for artificial intelligence processors, GPUs, and high-performance computing applications. Aehr's solutions serve semiconductor manufacturers requiring rigorous quality assurance for components used in electric vehicles, renewable energy systems, data center infrastructure, telecommunications, and advanced computing. The company's technology enables customers to conduct extended burn-in testing—subjecting components to elevated temperatures and voltages to identify defects before field deployment. With thousands of systems installed worldwide and ISO 9001 certification since 1997, Aehr plays a critical role in ensuring the reliability and safety of semiconductors across multiple high-demand industries.