Aehr Test Systems
AEHR- Exchange
- Nasdaq
- Industry
- Instruments For Meas & Testing of Electricity & Elec Signals
- SEC CIK
- 0001040470
In the last 90 days, Aehr Test Systems insiders filed 0 open-market purchases and 13 sales; 262 institutions reported holding it in 13F filings for Q2 2026, worth $2.23B in total; no superinvestor holds it.
13F holders, Q1 2026
Institutional positions in Aehr Test Systems as of Mar 31, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 191
- +45 vs. Q4 2025
- Shares held
- 22.5M
- +3.62M (+19.2%) vs. Q4 2025
- Total value
- $831.4M
- +$450.8M (+118.4%) vs. Q4 2025
- New holders
- 62
- 60 more added
- Sold out
- 17
- 48 more reduced
4 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AEHR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 262 | $2.23B |
| Q1 2026 | 191 | $831.4M |
| Q4 2025 | 150 | $427.8M |
| Q3 2025 | 149 | $612.6M |
| Q2 2025 | 121 | $227.4M |
| Q1 2025 | 115 | $139.4M |
| Q4 2024 | 132 | $347.5M |
| Q3 2024 | 126 | $267.0M |
| Q2 2024 | 119 | $214.0M |
| Q1 2024 | 132 | $232.6M |
| Q4 2023 | 168 | $533.6M |
| Q3 2023 | 153 | $903.9M |
| Q2 2023 | 151 | $791.1M |
| Q1 2023 | 144 | $582.4M |
| Q4 2022 | 129 | $321.8M |
| Q3 2022 | 85 | $167.0M |
| Q2 2022 | 70 | $66.0M |
| Q1 2022 | 80 | $110.0M |
| Q4 2021 | 74 | $268.3M |
| Q3 2021 | 42 | $109.7M |
| Q2 2021 | 20 | $12.7M |
| Q1 2021 | 22 | $12.2M |
Institutions, Q1 2026
Shares, value and share of portfolio for each institution holding Aehr Test Systems; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| BlackRock, Inc. | 2,286,899 | $84.8M | 0.00% | +159,794+7.5% | Added |
| FMR LLC | 2,142,639 | $79.4M | 0.00% | −365,281−14.6% | Reduced |
| AWM Investment Company, Inc. | 1,593,971 | $59.1M | 6.54% | +57,200+3.7% | Added |
| Price T Rowe Associates Inc | 1,349,351 | $50.0M | 0.01% | +1,314,967+3,824.4% | Added |
| Vanguard Capital Management LLC | 1,281,857 | $47.5M | 0.00% | +1,281,857 | New |
| Goldman Sachs Group Inc | 1,262,043 | $46.8M | 0.01% | +1,086,001+616.9% | Added |
| Baillie Gifford & Co | 1,001,018 | $37.1M | 0.04% | −289,716−22.4% | Reduced |
| Vanguard Portfolio Management LLC | 917,876 | $34.0M | 0.00% | +917,876 | New |
| Next Century Growth Investors LLC | 754,737 | $28.0M | 2.03% | +202,231+36.6% | Added |
| Geode Capital Management, LLC | 725,711 | $26.9M | 0.00% | +40,017+5.8% | Added |
| State Street Corp | 623,306 | $23.1M | 0.00% | −779−0.1% | Reduced |
| William Blair Investment Management, LLC | 513,293 | $19.0M | 0.06% | +17,621+3.6% | Added |
| Gilder Gagnon Howe & Co LLC | 444,296 | $16.5M | 0.20% | +126,348+39.7% | Added |
| Silvercrest Asset Management Group LLC | 344,247 | $12.8M | 0.09% | +35,860+11.6% | Added |
| D. E. Shaw & Co., Inc. | 341,638 | $12.7M | 0.01% | +51,347+17.7% | Added |
| Invesco Ltd. | 285,725 | $10.6M | 0.00% | +257,506+912.5% | Added |
| Jane Street Group, LLC | 277,045 | $10.3M | 0.01% | +36,607+15.2% | Added |
| Rice Hall James & Associates, LLC | 272,252 | $10.1M | 0.56% | −181,316−40.0% | Reduced |
| Walleye Capital LLC | 267,187 | $9.91M | 0.06% | +262,480+5,576.4% | Added |
| Northern Trust Corp | 252,158 | $9.35M | 0.00% | +12,286+5.1% | Added |
| UBS Group AG | 246,763 | $9.15M | 0.00% | +3,634+1.5% | Added |
| Charles Schwab Investment Management Inc | 235,539 | $8.73M | 0.00% | −2,870−1.2% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 218,809 | $8.11M | 0.02% | +218,809 | New |
| Two Sigma Investments, LP | 214,372 | $7.95M | 0.01% | −141,202−39.7% | Reduced |
| Susquehanna International Group, LLP | 202,039 | $7.49M | 0.01% | +90,780+81.6% | Added |
| Vanguard Fiduciary Trust Co | 197,166 | $7.31M | 0.00% | +197,166 | New |
| Lord, Abbett & Co. LLC | 179,289 | $6.65M | 0.02% | +179,289 | New |
| Bard Associates Inc | 179,127 | $6.64M | 1.67% | −666−0.4% | Reduced |
| Morgan Stanley | 165,673 | $6.14M | 0.00% | −79,110−32.3% | Reduced |
| JPMorgan Chase & Co | 190,339 | $5.73M | 0.00% | +125,984+195.8% | Added |
| Wellington Management Group LLP | 152,885 | $5.67M | 0.00% | −677,779−81.6% | Reduced |
| Citadel Advisors LLC | 141,291 | $5.24M | 0.00% | −79,488−36.0% | Reduced |
| Pier Capital, LLC | 126,991 | $4.71M | 0.78% | −84,628−40.0% | Reduced |
| Advisor Group Holdings, Inc. | 105,002 | $3.89M | 0.01% | +6,199+6.3% | Added |
| Millennium Management LLC | 95,826 | $3.55M | 0.00% | +36,607+61.8% | Added |
| ExodusPoint Capital Management, LP | 93,622 | $3.47M | 0.03% | +93,622 | New |
| Dimensional Fund Advisors LP | 93,037 | $3.44M | 0.00% | −16,030−14.7% | Reduced |
| Bank of New York Mellon Corp | 89,405 | $3.32M | 0.00% | −350−0.4% | Reduced |
| Kultura Capital Management LP | 80,200 | $2.97M | 2.72% | +80,200 | New |
| Penbrook Management LLC | 79,515 | $2.95M | 2.23% | −35,385−30.8% | Reduced |
| Polen Capital Management LLC | 79,396 | $2.94M | 0.02% | +49,285+163.7% | Added |
| Kennedy Capital Management, Inc. | 76,042 | $2.82M | 0.06% | −284,192−78.9% | Reduced |
| Raymond James Financial Inc | 75,244 | $2.79M | 0.00% | +62,504+490.6% | Added |
| KLCM Advisors, Inc. | 75,000 | $2.78M | 0.24% | 00.0% | Unchanged |
| Bouvel Investment Partners, LLC | 71,824 | $2.66M | 0.77% | +18,028+33.5% | Added |
| Nuveen, LLC | 70,357 | $2.61M | 0.00% | +1,224+1.8% | Added |
| Johnson Financial Group, LLC | 68,900 | $2.55M | 0.17% | +68,900 | New |
| New York State Common Retirement Fund | 61,582 | $2.28M | 0.00% | +14,532+30.9% | Added |
| Kestra Advisory Services, LLC | 60,100 | $2.23M | 0.01% | 00.0% | Unchanged |
| Royal Bank of Canada | 59,939 | $2.22M | 0.00% | +7,968+15.3% | Added |
| Swiss National Bank | 57,500 | $2.13M | 0.00% | +1,200+2.1% | Added |
| Bank of America Corp | 56,800 | $2.11M | 0.00% | −13,862−19.6% | Reduced |
| Barclays PLC | 52,214 | $1.94M | 0.00% | +7,834+17.7% | Added |
| Gratia Capital, LLC | 51,560 | $1.91M | 1.81% | −86,000−62.5% | Reduced |
| IMC-Chicago, LLC | 50,709 | $1.88M | 0.03% | +20,471+67.7% | Added |
| Heritage Investors Management Corp | 48,413 | $1.79M | 0.05% | 00.0% | Unchanged |
| Tudor Investment Corp Et Al | 48,193 | $1.79M | 0.01% | −133,307−73.4% | Reduced |
| California State Teachers Retirement System | 41,599 | $1.54M | 0.00% | +39,845+2,271.7% | Added |
| Laurel Oak Wealth Management, LLC | 38,670 | $1.43M | 0.24% | +38,670 | New |
| Royce & Associates LP | 38,102 | $1.41M | 0.01% | −4,000−9.5% | Reduced |
| Rhumbline Advisers | 36,833 | $1.37M | 0.00% | +695+1.9% | Added |
| UBS Asset Management Americas Inc | 34,381 | $1.27M | 0.00% | +5,379+18.5% | Added |
| Cambridge Investment Research Advisors, Inc. | 31,600 | $1.17M | 0.00% | −880−2.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 30,621 | $1.14M | 0.00% | +10,621+53.1% | Added |
| Fortitude Advisory Group L.L.C. | 28,682 | $1.06M | 0.48% | +7,575+35.9% | Added |
| Quantinno Capital Management LP | 28,520 | $1.06M | 0.00% | −977−3.3% | Reduced |
| Sandler Capital Management | 27,807 | $1.03M | 0.70% | +27,807 | New |
| Deutsche Bank AG | 26,723 | $990.9K | 0.00% | +5,269+24.6% | Added |
| G2 Investment Partners Management LLC | 25,000 | $927.0K | 0.23% | +25,000 | New |
| Legal & General Group Plc | 24,820 | $920.3K | 0.00% | −4,174−14.4% | Reduced |
| Squarepoint Ops LLC | 23,586 | $874.6K | 0.00% | −76,613−76.5% | Reduced |
| Wells Fargo & Company | 23,554 | $873.4K | 0.00% | −11,665−33.1% | Reduced |
| Harvest Investment Services, LLC | 23,228 | $861.3K | 0.16% | −1,681−6.7% | Reduced |
| SEI Investments Co | 23,109 | $856.9K | 0.00% | −8,812−27.6% | Reduced |
| Brevan Howard Capital Management LP | 22,775 | $844.5K | 0.01% | −9,185−28.7% | Reduced |
| 12 West Capital Management LP | 22,000 | $815.8K | 0.14% | +22,000 | New |
| State of Wisconsin Investment Board | 21,939 | $813.5K | 0.00% | −13,880−38.8% | Reduced |
| Clough Capital Partners L P | 21,899 | $812.0K | 0.08% | +21,899 | New |
| Horizon Kinetics Asset Management LLC | 21,600 | $800.9K | 0.01% | +300+1.4% | Added |
| Engineers Gate Manager LP | 20,473 | $759.1K | 0.01% | +5,372+35.6% | Added |
| Alliancebernstein L.P. | 36,420 | $735.3K | 0.00% | 00.0% | Unchanged |
| Vanguard Global Advisers, LLC | 19,674 | $729.5K | 0.00% | +19,674 | New |
| Vanguard Asset Management, Ltd | 19,186 | $711.4K | 0.00% | +19,186 | New |
| State of Alaska, Department of Revenue | 18,675 | $692.0K | 0.01% | 00.0% | Unchanged |
| Sun Group Wealth Partners | 17,931 | $664.9K | 0.52% | +370+2.1% | Added |
| Rockefeller Capital Management L.P. | 17,889 | $663.3K | 0.00% | +16,306+1,030.1% | Added |
| White Pine Capital LLC | 17,738 | $657.7K | 0.18% | −6,963−28.2% | Reduced |
| Headlands Technologies LLC | 17,389 | $644.8K | 0.07% | −25,557−59.5% | Reduced |
| Gsa Capital Partners LLP | 17,367 | $644.0K | 0.04% | +17,367 | New |
| MetLife Investment Management | 16,549 | $613.6K | 0.00% | −153−0.9% | Reduced |
| Balyasny Asset Management LLC | 16,262 | $603.0K | 0.00% | −8,513−34.4% | Reduced |
| Stifel Financial Corp | 15,630 | $579.6K | 0.00% | +15,630 | New |
| Janus Henderson Group PLC | 15,000 | $555.8K | 0.00% | 00.0% | Unchanged |
| Halter Ferguson Financial Inc. | 14,631 | $542.5K | 0.12% | −627,498−97.7% | Reduced |
| Integrated Wealth Concepts LLC | 14,195 | $526.4K | 0.00% | +14,195 | New |
| CWM Advisors, LLC | 14,057 | $521.2K | 0.03% | −9,219−39.6% | Reduced |
| Cetera Investment Advisers | 13,920 | $516.2K | 0.00% | +2,322+20.0% | Added |
| Mirae Asset Global ETFs Holdings Ltd. | 13,711 | $508.4K | 0.00% | +451+3.4% | Added |
| Cim, LLC | 13,671 | $506.9K | 0.07% | +13,671 | New |
| Franklin Resources Inc | 13,251 | $491.3K | 0.00% | 00.0% | Unchanged |