Aehr Test Systems
AEHR · NASDAQ
$61.99−$1.34 (−2.12%)TodayMarket closed ·
Prev close $63.33
Who owns AEHR
Largest institutional holders, from their latest 13F filings
The 10 largest institutions hold 36.1% of AEHR’s shares.
- BlackRock Institutional Trust Company, N.A.6.6%
- Jane Street Capital, L.L.C.5.1%
- Vanguard Capital Management, LLC4.0%
- D. E. Shaw & Co., L.P.3.6%
- Next 6 largest institutions16.8%
- All other shareholders63.9%
| Holder | Shares | % of shares |
|---|---|---|
| BlackRock Institutional Trust Company, N.A. | 2.15M | 6.58% |
| Jane Street Capital, L.L.C. | 1.65M | 5.05% |
| Vanguard Capital Management, LLC | 1.32M | 4.05% |
| D. E. Shaw & Co., L.P. | 1.18M | 3.61% |
| Two Sigma Investments, LP | 1.16M | 3.57% |
| Fidelity Management & Research Company LLC | 1.01M | 3.09% |
| Vanguard Portfolio Management, LLC | 966.66K | 2.96% |
| Geode Capital Management, L.L.C. | 875.50K | 2.68% |
| Goldman Sachs & Co. LLC | 750.86K | 2.30% |
| State Street Investment Management (US) | 712.93K | 2.19% |
Largest mutual fund holders
| Holder | Shares | % of shares |
|---|---|---|
| Vanguard Total Stock Market Index Fund | 954.37K | 2.93% |
| iShares Russell 2000 ETF | 790.65K | 2.42% |
| Vanguard Information Technology Index Fund | 712.44K | 2.18% |
| Fidelity Small Cap Growth Fund | 660.33K | 2.02% |
| Vanguard Extended Market Index Fund | 340.66K | 1.04% |
Insider trades
Form 4 filings by officers, directors and large holders
Over the last 6 months, insiders sold $33.04M (34 trades) of AEHR on the open market, with no buys.
| Insider | Type | Shares | Value |
|---|---|---|---|
| Siu Chris | Tax withholding | 987 | $83.54K |
| SPORCK ALISTAIR N | Tax withholding | 295 | $24.97K |
| ROGERS VERNON | Tax withholding | 426 | $36.06K |
| RICHMOND DONALD P. II | Tax withholding | 388 | $32.84K |
| ENGINEER ADIL | Tax withholding | 547 | $46.30K |
| Erickson Gayn | Tax withholding | 2.67K | $226.41K |
| Erickson Gayn | Tax withholding | 3.24K | $347.25K |
| ENGINEER ADIL | Tax withholding | 620 | $66.47K |
| RICHMOND DONALD P. II | Tax withholding | 439 | $47.07K |
| ROGERS VERNON | Tax withholding | 476 | $51.03K |
Short interest
Settled Sep 30, 2026
- Shares short
- 5.22M
- Days to cover
- 2.42
- % of shares outstanding
- 16.00%
- Average daily volume
- 2.16M
- Change since last report
- +2.0%
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