Aehr Test Systems: which funds bought and sold
Institutions that bought and sold Aehr Test Systems shares in Q2 2026, from the holdings they reported to the SEC on Form 13F for March 31, 2026 and June 30, 2026.
Between March 31, 2026 and June 30, 2026, 173 institutions that filed 13F reports for both quarters added to or opened positions in Aehr Test Systems, and 100 cut or closed them. Together they added a net 791K shares, +3.5% on what they held at the start of the quarter. Active managers and hedge funds on our list were net sellers of 55K shares (−0.8%); index fund managers were net buyers of 761K shares (+11.6%). 100 opened a new position and 30 sold out entirely.
Bought, Q2 2026 173 institutions, 100 of them new holders Sold, Q2 2026 100 institutions, 30 of them sold out
Net change, all compared +791K shares (+3.5%)
Net change, active managers −55K shares (−0.8%), 28 bought, 18 sold
Buyers versus sellers
173 bought 13 100 sold
Active managers and hedge funds 28 bought · 18 sold · −55K
Index fund managers 11 bought · 0 sold · +761K
Other institutions 134 bought · 82 sold · +85K
Biggest buyers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Two Sigma Investments, LP Hedge fund | +950K +443.3% | 1.2M | $112M |
| D. E. Shaw & Co., Inc. Hedge fund | +836K +244.6% | 1.2M | $113M |
| Jpmorgan Chase & Co | +542K +284.9% | 733K | $69.6M |
| Jane Street Group, LLC | +476K +172.0% | 754K | $72.4M |
| Connor, Clark & Lunn Investment Management Ltd. | +452K +206.5% | 671K | $64.4M |
| Blackrock, Inc. Index funds | +373K +16.3% | 2.7M | $255M |
| Marshall Wace, LLP Hedge fund | +373K +3648.3% | 383K | $36.8M |
| T. Rowe Price Investment Management, Inc. Active manager | +318K New position | 318K | $30.6M |
| Morgan Stanley | +315K +190.0% | 480K | $46.1M |
| Citadel Advisors LLC Hedge fund | +259K +183.6% | 401K | $38.5M |
| Science & Technology Partners, L.P. | +249K New position | 249K | $23.9M |
| Driehaus Capital Management LLC Active manager | +238K New position | 238K | $22.9M |
| Trexquant Investment LP Hedge fund | +202K New position | 202K | $19.4M |
| Neuberger Berman Group LLC Active manager | +168K New position | 168K | $16.1M |
| Tudor Investment Corp Et Al Hedge fund | +156K +324.4% | 205K | $19.6M |
| Kadensa Capital Ltd | +155K New position | 155K | $14.9M |
| Penn Capital Management Company, LLC Active manager | +151K New position | 151K | $14.5M |
| Geode Capital Management, LLC Index funds | +150K +20.6% | 876K | $84.1M |
| Berkshire Capital Holdings Inc | +143K New position | 143K | $13.7M |
| BNP Paribas Financial Markets | +139K +2205.1% | 146K | $14M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Two Sigma Investments, LP Hedge fund | +950K +443.3% | 1.2M | $112M |
| D. E. Shaw & Co., Inc. Hedge fund | +836K +244.6% | 1.2M | $113M |
| Marshall Wace, LLP Hedge fund | +373K +3648.3% | 383K | $36.8M |
| T. Rowe Price Investment Management, Inc. Active manager | +318K New position | 318K | $30.6M |
| Citadel Advisors LLC Hedge fund | +259K +183.6% | 401K | $38.5M |
| Driehaus Capital Management LLC Active manager | +238K New position | 238K | $22.9M |
| Trexquant Investment LP Hedge fund | +202K New position | 202K | $19.4M |
| Neuberger Berman Group LLC Active manager | +168K New position | 168K | $16.1M |
| Tudor Investment Corp Et Al Hedge fund | +156K +324.4% | 205K | $19.6M |
| Penn Capital Management Company, LLC Active manager | +151K New position | 151K | $14.5M |
Biggest sellers
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| Awm Investment Company, Inc. | −1.2M −76.5% | 375K | $36M |
| FMR LLC Active manager | −1.1M −53.0% | 1.0M | $96.7M |
| Price T Rowe Associates Inc Active manager | −842K −62.4% | 507K | $48.7M |
| Baillie Gifford & Co Active manager | −797K −79.6% | 204K | $19.6M |
| William Blair Investment Management, LLC Active manager | −513K Sold out | 0 | — |
| Goldman Sachs Group Inc | −452K −35.8% | 810K | $77.8M |
| Silvercrest Asset Management Group LLC | −344K Sold out | 0 | — |
| Gilder Gagnon Howe & Co LLC Active manager | −344K −77.4% | 100K | $9.6M |
| Next Century Growth Investors LLC | −344K −45.6% | 411K | $39.5M |
| Walleye Capital LLC Hedge fund | −267K −99.9% | 191 | $18,347 |
| Susquehanna International Group, LLP | −185K −91.7% | 17K | $1.6M |
| Rice Hall James & Associates, LLC | −185K −67.8% | 88K | $8.4M |
| Exoduspoint Capital Management, LP Hedge fund | −94K Sold out | 0 | — |
| UBS Group AG | −78K −31.5% | 169K | $16.2M |
| Kennedy Capital Management LLC Active manager | −76K Sold out | 0 | — |
| Penbrook Management LLC | −74K −93.5% | 5,200 | $499,512 |
| Pier Capital, LLC | −67K −52.4% | 60K | $5.8M |
| Klcm Advisors, Inc. | −65K −86.7% | 10K | $960,600 |
| Kestra Advisory Services, LLC | −60K Sold out | 0 | — |
| Johnson Financial Group, LLC | −54K −77.9% | 15K | $1.5M |
| Institution | Change in shares | Shares June 30, 2026 | Value |
|---|---|---|---|
| FMR LLC Active manager | −1.1M −53.0% | 1.0M | $96.7M |
| Price T Rowe Associates Inc Active manager | −842K −62.4% | 507K | $48.7M |
| Baillie Gifford & Co Active manager | −797K −79.6% | 204K | $19.6M |
| William Blair Investment Management, LLC Active manager | −513K Sold out | 0 | — |
| Gilder Gagnon Howe & Co LLC Active manager | −344K −77.4% | 100K | $9.6M |
| Walleye Capital LLC Hedge fund | −267K −99.9% | 191 | $18,347 |
| Exoduspoint Capital Management, LP Hedge fund | −94K Sold out | 0 | — |
| Kennedy Capital Management LLC Active manager | −76K Sold out | 0 | — |
| Royce & Associates LP Active manager | −24K −63.5% | 14K | $1.3M |
| Squarepoint Ops LLC Hedge fund | −24K Sold out | 0 | — |
New positions
| Institution | Shares | Value June 30, 2026 |
|---|---|---|
| T. Rowe Price Investment Management, Inc.Active manager | 318K | $30.6M |
| Science & Technology Partners, L.P. | 249K | $23.9M |
| Driehaus Capital Management LLCActive manager | 238K | $22.9M |
| Trexquant Investment LPHedge fund | 202K | $19.4M |
| Neuberger Berman Group LLCActive manager | 168K | $16.1M |
| Kadensa Capital Ltd | 155K | $14.9M |
| Penn Capital Management Company, LLCActive manager | 151K | $14.5M |
| Berkshire Capital Holdings Inc | 143K | $13.7M |
| Renaissance Technologies LLCHedge fund | 135K | $12.9M |
| Algert Global LLCHedge fund | 82K | $7.9M |
Sold out
| Institution | Shares | Value March 31, 2026 |
|---|---|---|
| William Blair Investment Management, LLCActive manager | 513K | $19M |
| Silvercrest Asset Management Group LLC | 344K | $12.8M |
| Exoduspoint Capital Management, LPHedge fund | 94K | $3.5M |
| Kennedy Capital Management LLCActive manager | 76K | $2.8M |
| Kestra Advisory Services, LLC | 60K | $2.2M |
| Gratia Capital, LLC | 52K | $1.9M |
| Imc-Chicago, LLC | 51K | $1.9M |
| Sandler Capital Management | 28K | $1M |
| G2 Investment Partners Management LLC | 25K | $927,000 |
| Squarepoint Ops LLCHedge fund | 24K | $874,569 |
Who holds the shares
- Institutions reporting
- 261
- Ten largest holders
- 49.3% of 13F-reported shares
- Index fund managers
- 31.5% of 13F-reported shares
- Active managers and hedge funds
- 30.8% of 13F-reported shares
| Type | Bought | Sold | New | Sold out | Net change in shares | Net % |
|---|---|---|---|---|---|---|
| Active managers and hedge funds | 28 | 18 | 15 | 10 | −55K | −0.8% |
| Index fund managers | 11 | 0 | 1 | 0 | +761K | +11.6% |
| Other institutions | 134 | 82 | 84 | 20 | +85K | +1.0% |