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 |
|---|---|---|---|---|---|
| Balyasny Asset Management LLC | 16,262 | $603.0K | 0.00% | −8,513−34.4% | Reduced |
| MetLife Investment Management | 16,549 | $613.6K | 0.00% | −153−0.9% | Reduced |
| Gsa Capital Partners LLP | 17,367 | $644.0K | 0.04% | +17,367 | New |
| Headlands Technologies LLC | 17,389 | $644.8K | 0.07% | −25,557−59.5% | Reduced |
| White Pine Capital LLC | 17,738 | $657.7K | 0.18% | −6,963−28.2% | Reduced |
| Rockefeller Capital Management L.P. | 17,889 | $663.3K | 0.00% | +16,306+1,030.1% | Added |
| Sun Group Wealth Partners | 17,931 | $664.9K | 0.52% | +370+2.1% | Added |
| State of Alaska, Department of Revenue | 18,675 | $692.0K | 0.01% | 00.0% | Unchanged |
| Vanguard Asset Management, Ltd | 19,186 | $711.4K | 0.00% | +19,186 | New |
| Vanguard Global Advisers, LLC | 19,674 | $729.5K | 0.00% | +19,674 | New |
| Alliancebernstein L.P. | 36,420 | $735.3K | 0.00% | 00.0% | Unchanged |
| Engineers Gate Manager LP | 20,473 | $759.1K | 0.01% | +5,372+35.6% | Added |
| Horizon Kinetics Asset Management LLC | 21,600 | $800.9K | 0.01% | +300+1.4% | Added |
| Clough Capital Partners L P | 21,899 | $812.0K | 0.08% | +21,899 | New |
| State of Wisconsin Investment Board | 21,939 | $813.5K | 0.00% | −13,880−38.8% | Reduced |
| 12 West Capital Management LP | 22,000 | $815.8K | 0.14% | +22,000 | New |
| Brevan Howard Capital Management LP | 22,775 | $844.5K | 0.01% | −9,185−28.7% | Reduced |
| SEI Investments Co | 23,109 | $856.9K | 0.00% | −8,812−27.6% | Reduced |
| Harvest Investment Services, LLC | 23,228 | $861.3K | 0.16% | −1,681−6.7% | Reduced |
| Wells Fargo & Company | 23,554 | $873.4K | 0.00% | −11,665−33.1% | Reduced |
| Squarepoint Ops LLC | 23,586 | $874.6K | 0.00% | −76,613−76.5% | Reduced |
| Legal & General Group Plc | 24,820 | $920.3K | 0.00% | −4,174−14.4% | Reduced |
| G2 Investment Partners Management LLC | 25,000 | $927.0K | 0.23% | +25,000 | New |
| Deutsche Bank AG | 26,723 | $990.9K | 0.00% | +5,269+24.6% | Added |
| Sandler Capital Management | 27,807 | $1.03M | 0.70% | +27,807 | New |
| Quantinno Capital Management LP | 28,520 | $1.06M | 0.00% | −977−3.3% | Reduced |
| Fortitude Advisory Group L.L.C. | 28,682 | $1.06M | 0.48% | +7,575+35.9% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 30,621 | $1.14M | 0.00% | +10,621+53.1% | Added |
| Cambridge Investment Research Advisors, Inc. | 31,600 | $1.17M | 0.00% | −880−2.7% | Reduced |
| UBS Asset Management Americas Inc | 34,381 | $1.27M | 0.00% | +5,379+18.5% | Added |
| Rhumbline Advisers | 36,833 | $1.37M | 0.00% | +695+1.9% | Added |
| Royce & Associates LP | 38,102 | $1.41M | 0.01% | −4,000−9.5% | Reduced |
| Laurel Oak Wealth Management, LLC | 38,670 | $1.43M | 0.24% | +38,670 | New |
| California State Teachers Retirement System | 41,599 | $1.54M | 0.00% | +39,845+2,271.7% | Added |
| Tudor Investment Corp Et Al | 48,193 | $1.79M | 0.01% | −133,307−73.4% | Reduced |
| Heritage Investors Management Corp | 48,413 | $1.79M | 0.05% | 00.0% | Unchanged |
| IMC-Chicago, LLC | 50,709 | $1.88M | 0.03% | +20,471+67.7% | Added |
| Gratia Capital, LLC | 51,560 | $1.91M | 1.81% | −86,000−62.5% | Reduced |
| Barclays PLC | 52,214 | $1.94M | 0.00% | +7,834+17.7% | Added |
| Bank of America Corp | 56,800 | $2.11M | 0.00% | −13,862−19.6% | Reduced |
| Swiss National Bank | 57,500 | $2.13M | 0.00% | +1,200+2.1% | Added |
| Royal Bank of Canada | 59,939 | $2.22M | 0.00% | +7,968+15.3% | Added |
| Kestra Advisory Services, LLC | 60,100 | $2.23M | 0.01% | 00.0% | Unchanged |
| New York State Common Retirement Fund | 61,582 | $2.28M | 0.00% | +14,532+30.9% | Added |
| Johnson Financial Group, LLC | 68,900 | $2.55M | 0.17% | +68,900 | New |
| Nuveen, LLC | 70,357 | $2.61M | 0.00% | +1,224+1.8% | Added |
| Bouvel Investment Partners, LLC | 71,824 | $2.66M | 0.77% | +18,028+33.5% | Added |
| KLCM Advisors, Inc. | 75,000 | $2.78M | 0.24% | 00.0% | Unchanged |
| Raymond James Financial Inc | 75,244 | $2.79M | 0.00% | +62,504+490.6% | Added |
| Kennedy Capital Management, Inc. | 76,042 | $2.82M | 0.06% | −284,192−78.9% | Reduced |
| Polen Capital Management LLC | 79,396 | $2.94M | 0.02% | +49,285+163.7% | Added |
| Penbrook Management LLC | 79,515 | $2.95M | 2.23% | −35,385−30.8% | Reduced |
| Kultura Capital Management LP | 80,200 | $2.97M | 2.72% | +80,200 | New |
| Bank of New York Mellon Corp | 89,405 | $3.32M | 0.00% | −350−0.4% | Reduced |
| Dimensional Fund Advisors LP | 93,037 | $3.44M | 0.00% | −16,030−14.7% | Reduced |
| ExodusPoint Capital Management, LP | 93,622 | $3.47M | 0.03% | +93,622 | New |
| Millennium Management LLC | 95,826 | $3.55M | 0.00% | +36,607+61.8% | Added |
| Advisor Group Holdings, Inc. | 105,002 | $3.89M | 0.01% | +6,199+6.3% | Added |
| Pier Capital, LLC | 126,991 | $4.71M | 0.78% | −84,628−40.0% | Reduced |
| Citadel Advisors LLC | 141,291 | $5.24M | 0.00% | −79,488−36.0% | Reduced |
| Wellington Management Group LLP | 152,885 | $5.67M | 0.00% | −677,779−81.6% | Reduced |
| JPMorgan Chase & Co | 190,339 | $5.73M | 0.00% | +125,984+195.8% | Added |
| Morgan Stanley | 165,673 | $6.14M | 0.00% | −79,110−32.3% | Reduced |
| Bard Associates Inc | 179,127 | $6.64M | 1.67% | −666−0.4% | Reduced |
| Lord, Abbett & Co. LLC | 179,289 | $6.65M | 0.02% | +179,289 | New |
| Vanguard Fiduciary Trust Co | 197,166 | $7.31M | 0.00% | +197,166 | New |
| Susquehanna International Group, LLP | 202,039 | $7.49M | 0.01% | +90,780+81.6% | Added |
| Two Sigma Investments, LP | 214,372 | $7.95M | 0.01% | −141,202−39.7% | Reduced |
| Connor, Clark & Lunn Investment Management Ltd. | 218,809 | $8.11M | 0.02% | +218,809 | New |
| Charles Schwab Investment Management Inc | 235,539 | $8.73M | 0.00% | −2,870−1.2% | Reduced |
| UBS Group AG | 246,763 | $9.15M | 0.00% | +3,634+1.5% | Added |
| Northern Trust Corp | 252,158 | $9.35M | 0.00% | +12,286+5.1% | Added |
| Walleye Capital LLC | 267,187 | $9.91M | 0.06% | +262,480+5,576.4% | Added |
| Rice Hall James & Associates, LLC | 272,252 | $10.1M | 0.56% | −181,316−40.0% | Reduced |
| Jane Street Group, LLC | 277,045 | $10.3M | 0.01% | +36,607+15.2% | Added |
| Invesco Ltd. | 285,725 | $10.6M | 0.00% | +257,506+912.5% | Added |
| D. E. Shaw & Co., Inc. | 341,638 | $12.7M | 0.01% | +51,347+17.7% | Added |
| Silvercrest Asset Management Group LLC | 344,247 | $12.8M | 0.09% | +35,860+11.6% | Added |
| Gilder Gagnon Howe & Co LLC | 444,296 | $16.5M | 0.20% | +126,348+39.7% | Added |
| William Blair Investment Management, LLC | 513,293 | $19.0M | 0.06% | +17,621+3.6% | Added |
| State Street Corp | 623,306 | $23.1M | 0.00% | −779−0.1% | Reduced |
| Geode Capital Management, LLC | 725,711 | $26.9M | 0.00% | +40,017+5.8% | Added |
| Next Century Growth Investors LLC | 754,737 | $28.0M | 2.03% | +202,231+36.6% | Added |
| Vanguard Portfolio Management LLC | 917,876 | $34.0M | 0.00% | +917,876 | New |
| Baillie Gifford & Co | 1,001,018 | $37.1M | 0.04% | −289,716−22.4% | Reduced |
| Goldman Sachs Group Inc | 1,262,043 | $46.8M | 0.01% | +1,086,001+616.9% | Added |
| Vanguard Capital Management LLC | 1,281,857 | $47.5M | 0.00% | +1,281,857 | New |
| Price T Rowe Associates Inc | 1,349,351 | $50.0M | 0.01% | +1,314,967+3,824.4% | Added |
| AWM Investment Company, Inc. | 1,593,971 | $59.1M | 6.54% | +57,200+3.7% | Added |
| FMR LLC | 2,142,639 | $79.4M | 0.00% | −365,281−14.6% | Reduced |
| BlackRock, Inc. | 2,286,899 | $84.8M | 0.00% | +159,794+7.5% | Added |
| Sculptor Capital LP | 0 | $0 | 0.00% | −300,000−100.0% | Sold out |
| National Bank of Canada | 0 | $0 | 0.00% | −206,011−100.0% | Sold out |
| Two Sigma Advisers, LP | 0 | $0 | 0.00% | −85,001−100.0% | Sold out |
| Victory Capital Management Inc | 0 | $0 | 0.00% | −69,540−100.0% | Sold out |
| Captrust Financial Advisors | 0 | $0 | 0.00% | −45,107−100.0% | Sold out |
| Thompson Siegel & Walmsley LLC | 0 | $0 | 0.00% | −24,027−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −23,067−100.0% | Sold out |
| Quantbot Technologies LP | 0 | $0 | 0.00% | −19,856−100.0% | Sold out |
| Net Worth Advisory Group | 0 | $0 | 0.00% | −13,225−100.0% | Sold out |