Ranked by reported Q1 2026 13F market value
Share of total reported institutional value in AEHR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 2.3M | $84.8M | +7.5% | 7.468% | 0.00% |
| 2 | FMR LLC | 2.1M | $79.4M | -14.6% | 6.997% | 0.00% |
| 3 | AWM Investment Company, Inc. | 1.6M | $59.1M | +3.7% | 5.205% | 6.54% |
| 4 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.5M | $54.0M | -17.5% | 4.758% | 0.01% |
| 5 | VANGUARD CAPITAL MANAGEMENT LLC | 1.3M | $47.5M | β | 4.186% | 0.00% |
| 6 | GOLDMAN SACHS GROUP INC | 1.3M | $46.8M | +616.9% | 4.121% | 0.01% |
| 7 | BAILLIE GIFFORD & CO | 1.0M | $37.1M | -22.4% | 3.269% | 0.04% |
| 8 | VANGUARD PORTFOLIO MANAGEMENT LLC | 918K | $34.0M | β | 2.997% | 0.00% |
| 9 | NEXT CENTURY GROWTH INVESTORS LLC | 755K | $28.0M | +36.6% | 2.465% | 2.03% |
| 10 | GRATIA CAPITAL, LLC | 749K | $27.8M | +39.3% | 2.444% | 17.08% |
| 11 | GEODE CAPITAL MANAGEMENT, LLC | 726K | $26.9M | +5.8% | 2.370% | 0.00% |
| 12 | STATE STREET CORP | 623K | $23.1M | -0.1% | 2.035% | 0.00% |
| 13 | WILLIAM BLAIR INVESTMENT MANAGEMENT, LLC | 513K | $19.0M | +3.5% | 1.676% | 0.06% |
| 14 | GILDER GAGNON HOWE & CO LLC | 444K | $16.5M | +39.7% | 1.451% | 0.20% |
| 15 | D. E. Shaw & Co., Inc. | 424K | $15.7M | -37.9% | 1.383% | 0.01% |
| 16 | SILVERCREST ASSET MANAGEMENT GROUP LLC | 344K | $12.8M | +11.6% | 1.124% | 0.09% |
| 17 | Walleye Capital LLC | 328K | $12.2M | +404.9% | 1.070% | 0.05% |
| 18 | UBS Group AG | 307K | $11.4M | +26.2% | 1.002% | 0.00% |
| 19 | Invesco Ltd. | 286K | $10.6M | +912.5% | 0.933% | 0.00% |
| 20 | RICE HALL JAMES & ASSOCIATES, LLC | 272K | $10.1M | -40.0% | 0.889% | 0.56% |
| 21 | NORTHERN TRUST CORP | 252K | $9.4M | +5.1% | 0.823% | 0.00% |
| 22 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 236K | $8.7M | -1.2% | 0.769% | 0.00% |
| 23 | Connor, Clark & Lunn Investment Management Ltd. | 219K | $8.1M | β | 0.715% | 0.02% |
| 24 | TWO SIGMA INVESTMENTS, LP | 214K | $7.9M | -44.2% | 0.700% | 0.01% |
| 25 | VANGUARD FIDUCIARY TRUST CO | 197K | $7.3M | β | 0.644% | 0.00% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). β% of Fundβ shows how much of that investorβs total 13F portfolio is invested in AEHR β a direct measure of their conviction.
Filings activity in AEHR during Q1 2026, grouped by how each filer changed its position.
8 quarters of 13F filings Β· Ξ columns show change vs prior quarter
| Quarter | Inst. Holders | Ξ Holders | Ownership % | Ξ Ownership | Total 13F Value | Ξ Value |
|---|---|---|---|---|---|---|
| Q1 2026 | 185 | +23% | 24.96% | +9.70 pp | $829M | +64% |
| Q4 2025 | 150 | +4.2% | 15.26% | 6.28 pp | $507M | 29% |
| Q3 2025 | 144 | +19% | 21.54% | +14.38 pp | $715M | +201% |
| Q2 2025 | 121 | +8.0% | 7.16% | +2.80 pp | $238M | +64% |
| Q1 2025 | 112 | 14% | 4.36% | 6.64 pp | $145M | 60% |
| Q4 2024 | 130 | +5.7% | 11.00% | +2.77 pp | $365M | +34% |
| Q3 2024 | 123 | +7.0% | 8.23% | +1.69 pp | $274M | +26% |
| Q2 2024 | 115 | β | 6.54% | β | $217M | β |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Ξ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AEHR stock.
Based on Q1 2026 13F filings, institutional ownership of Aehr Test Systems stands at 25.0%, held across 185 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AEHR, with approximately 2,286,899 shares worth $0.08B as of Q1 2026.
Yes β 2 widely-followed marquee investors appear among the top 25 institutional holders of AEHR, including SUSQUEHANNA INTERNATIONAL GROUP, LLP, TWO SIGMA INVESTMENTS, LP.
Our composite Smart Money Score for AEHR is 75 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
61 institutions opened new positions in AEHR during Q1 2026, while 26 fully exited. 112 added to existing positions and 10 trimmed.
AEHR institutional ownership rose by 9.70 percentage points quarter-over-quarter, with a net change of +35 holders.
The top 10 institutions account for 60.1% of all reported 13F value in AEHR, and the top 25 account for 84.2%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Aehr Test Systems (AEHR) Institutional Ownership