Aehr Test SystemsAEHR
13F holders, Q1 2026 (March 31)191holders +41
56new positions
15sold out
6famous investors
$37.00avg. 13F price*
At the end of Q1 2026, 191 institutions reported holding Aehr Test Systems (AEHR) in their 13F filings, up 41 from Q4 2025. 56 opened new positions and 15 sold out. The largest holders were BlackRock, Inc. ($84.8M), FMR LLC ($79.4M) and AWM Investment Company, Inc. ($59.1M). 6 famous investors held it, including David E. Shaw (0.0% of D. E. Shaw & Co.'s portfolio), Paul Tudor Jones (0.0% of Tudor Investment Corporation's portfolio) and Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Aehr Test Systems
- CUSIP
- 00760J108
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 56 | $40.2M |
| Exits | 15 | $14.4M |
All 13F filers, Q4 2025 → Q1 2026: 5,317,355 shares bought and 4,053,811 shares sold, net +1,263,544 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 191 holders
| BlackRock, Inc. | 0.00% | Add +7.5% | 2,286,899 | $84.8M |
| FMR LLC | 0.00% | Reduce -14.6% | 2,142,639 | $79.4M |
| AWM Investment Company, Inc. | 6.54% | Add +3.7% | 1,593,971 | $59.1M |
| T. Rowe Price Associates Inc. | 0.01% | Add +3824.4% | 1,349,351 | $50.0M |
| Vanguard Capital Management LLC | 0.00% | — | 1,281,857 | $47.5M |
| Goldman Sachs Group Inc. | 0.01% | Add +616.9% | 1,262,043 | $46.8M |
| Baillie Gifford & Co. | 0.04% | Reduce -22.4% | 1,001,018 | $37.1M |
| Vanguard Portfolio Management LLC | 0.00% | — | 917,876 | $34.0M |
| Next Century Growth Investors LLC | 2.03% | Add +36.6% | 754,737 | $28.0M |
| Geode Capital Management, LLC | 0.00% | Add +5.8% | 725,711 | $26.9M |
| State Street Corp. | 0.00% | Reduce -0.1% | 623,306 | $23.1M |
| William Blair Investment Management, LLC | 0.06% | Add +3.5% | 513,293 | $19.0M |
| Gilder Gagnon Howe & Co. LLC | 0.20% | Add +39.7% | 444,296 | $16.5M |
| Silvercrest Asset Management Group LLC | 0.09% | Add +11.6% | 344,247 | $12.8M |
| D. E. Shaw & Co. | 0.01% | Add +17.7% | 341,638 | $12.7M |
| Invesco Ltd. | 0.00% | Add +912.5% | 285,725 | $10.6M |
| Jane Street Group, LLC | 0.01% | Add +15.2% | 277,045 | $10.3M |
| Rice Hall James & Associates, LLC | 0.56% | Reduce -40.0% | 272,252 | $10.1M |
| Walleye Capital LLC | 0.07% | Add +5576.4% | 267,187 | $9.9M |
| Northern Trust Corp. | 0.00% | Add +5.1% | 252,158 | $9.4M |
| UBS Group AG | 0.00% | Add +1.5% | 246,763 | $9.1M |
| Charles Schwab Investment Management Inc. | 0.00% | Reduce -1.2% | 235,539 | $8.7M |
| Connor, Clark & Lunn Investment Management Ltd. | 0.02% | New | 218,809 | $8.1M |
| Two Sigma Investments, LP | 0.01% | Reduce -39.7% | 214,372 | $7.9M |
| Susquehanna International Group, LLP | 0.01% | Add +81.6% | 202,039 | $7.5M |
| Vanguard Fiduciary Trust Co. | 0.00% | — | 197,166 | $7.3M |
| Lord, Abbett & Co. LLC | 0.02% | New | 179,289 | $6.6M |
| Bard Associates Inc. | 1.67% | Reduce -0.4% | 179,127 | $6.6M |
| Morgan Stanley | 0.00% | Reduce -32.3% | 165,673 | $6.1M |
| JPMorgan Chase & Co. | 0.00% | Add +195.8% | 190,339 | $5.7M |
| Wellington Management Group LLP | 0.00% | Reduce -81.6% | 152,885 | $5.7M |
| Citadel Advisors | 0.00% | Reduce -36.0% | 141,291 | $5.2M |
| Pier Capital, LLC | 0.78% | Reduce -40.0% | 126,991 | $4.7M |
| Osaic Holdings, Inc. | 0.01% | Add +6.3% | 105,002 | $3.9M |
| Millennium Management | 0.00% | Add +61.8% | 95,826 | $3.6M |
| ExodusPoint Capital Management, LP | 0.03% | New | 93,622 | $3.5M |
| Dimensional Fund Advisors LP | 0.00% | Reduce -14.7% | 93,037 | $3.4M |
| Bank of New York Mellon Corp | 0.00% | Reduce -0.4% | 89,405 | $3.3M |
| Kultura Capital Management LP | 2.72% | New | 80,200 | $3.0M |
| Penbrook Management LLC | 2.23% | Reduce -30.8% | 79,515 | $2.9M |
| Polen Capital Management LLC | 0.02% | Add +163.7% | 79,396 | $2.9M |
| Kennedy Capital Management LLC | 0.06% | Reduce -78.9% | 76,042 | $2.8M |
| Raymond James Financial Inc. | 0.00% | Add +490.6% | 75,244 | $2.8M |
| KLCM Advisors, Inc. | 0.24% | No change | 75,000 | $2.8M |
| Bouvel Investment Partners, LLC | 0.77% | Add +33.5% | 71,824 | $2.7M |
| Nuveen, LLC | 0.00% | Add +1.8% | 70,357 | $2.6M |
| Johnson Financial Group, LLC | 0.17% | New | 68,900 | $2.6M |
| New York State Common Retirement Fund | 0.00% | Add +30.9% | 61,582 | $2.3M |
| Kestra Advisory Services, LLC | 0.01% | No change | 60,100 | $2.2M |
| Royal Bank of Canada | 0.00% | Add +15.3% | 59,939 | $2.2M |
| Swiss National Bank | 0.00% | Add +2.1% | 57,500 | $2.1M |
| Bank of America Corp. | 0.00% | Reduce -19.6% | 56,800 | $2.1M |
| Barclays PLC | 0.00% | Add +17.6% | 52,214 | $1.9M |
| Gratia Capital, LLC | 1.81% | Reduce -62.5% | 51,560 | $1.9M |
| IMC-Chicago, LLC | 0.03% | Add +67.7% | 50,709 | $1.9M |
| Heritage Investors Management Corp. | 0.05% | No change | 48,413 | $1.8M |
| Tudor Investment Corporation | 0.01% | Reduce -73.5% | 48,193 | $1.8M |
| California State Teachers Retirement System | 0.00% | Add +2271.7% | 41,599 | $1.5M |
| Laurel Oak Wealth Management, LLC | 0.24% | New | 38,670 | $1.4M |
| Royce & Associates LP | 0.01% | Reduce -9.5% | 38,102 | $1.4M |
| Rhumbline Advisers | 0.00% | Add +1.9% | 36,833 | $1.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Add +18.6% | 34,381 | $1.3M |
| Cambridge Investment Research Advisors, Inc. | 0.00% | Reduce -2.7% | 31,600 | $1.2M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.00% | Add +53.1% | 30,621 | $1.1M |
| Fortitude Advisory Group L.L.C. | 0.48% | Add +35.9% | 28,682 | $1.1M |
| Quantinno Capital Management LP | 0.00% | Reduce -3.3% | 28,520 | $1.1M |
| Sandler Capital Management | 0.70% | New | 27,807 | $1.0M |
| Deutsche Bank AG | 0.00% | Add +24.6% | 26,723 | $991K |
| G2 Investment Partners Management LLC | 0.23% | New | 25,000 | $927K |
| Legal & General Group Plc | 0.00% | Reduce -14.4% | 24,820 | $920K |
| Squarepoint Ops LLC | 0.00% | Reduce -76.5% | 23,586 | $875K |
| Wells Fargo & Company | 0.00% | Reduce -33.1% | 23,554 | $873K |
| Harvest Investment Services, LLC | 0.16% | Reduce -6.8% | 23,228 | $861K |
| Sei Investments Co. | 0.00% | Reduce -27.6% | 23,109 | $857K |
| Brevan Howard Capital Management LP | 0.01% | Reduce -28.7% | 22,775 | $844K |
| 12 West Capital Management LP | 0.14% | New | 22,000 | $816K |
| State of Wisconsin Investment Board | 0.00% | Reduce -38.8% | 21,939 | $813K |
| Clough Capital Partners L P | 0.08% | New | 21,899 | $812K |
| Horizon Kinetics Asset Management LLC | 0.01% | Add +1.4% | 21,600 | $801K |
| Engineers Gate Manager LP | 0.01% | Add +35.6% | 20,473 | $759K |
| Alliancebernstein L.P. | 0.00% | No change | 36,420 | $735K |
| Vanguard Global Advisers, LLC | 0.00% | — | 19,674 | $730K |
| VANGUARD ASSET MANAGEMENT, Ltd | 0.00% | — | 19,186 | $711K |
| State of Alaska, Department of Revenue | 0.01% | No change | 18,675 | $692K |
| Sun Group Wealth Partners | 0.52% | Add +2.1% | 17,931 | $665K |
| Rockefeller Capital Management L.P. | 0.00% | Add +1030.1% | 17,889 | $663K |
| White Pine Capital LLC | 0.18% | Reduce -28.2% | 17,738 | $658K |
| Headlands Technologies LLC | 0.07% | Reduce -59.5% | 17,389 | $645K |
| Gsa Capital Partners LLP | 0.04% | New | 17,367 | $644K |
| MetLife Investment Management, LLC | 0.00% | Reduce -0.9% | 16,549 | $614K |
| Balyasny Asset Management L.P. | 0.00% | Reduce -34.4% | 16,262 | $603K |
| Stifel Financial Corp. | 0.00% | New | 15,630 | $580K |
| Janus Henderson Group PLC | 0.00% | No change | 15,000 | $556K |
| Halter Ferguson Financial Inc. | 0.12% | Reduce -97.7% | 14,631 | $543K |
| Integrated Wealth Concepts LLC | 0.00% | New | 14,195 | $526K |
| Inspire Investing, LLC | 0.03% | Reduce -39.6% | 14,057 | $521K |
| Cetera Investment Advisers | 0.00% | Add +20.0% | 13,920 | $516K |
| MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. | 0.00% | Add +3.4% | 13,711 | $508K |
| Cim, LLC | 0.07% | New | 13,671 | $507K |
| Franklin Resources Inc. | 0.00% | No change | 13,251 | $491K |
"% of holder's portfolio" is AEHR's weight in each manager's 13F, not the share of Aehr Test Systems the manager owns.