Institutional Ownership
Aehr Test Sys
CUSIP 00760J108COMAEHRQ1 2026
13D / 13G Filings
25
Schedule 13D/13G on record
Beneficial Filers
9
Distinct reporting persons
Largest Stake
11.3%
Max % of class reported
Institutional Holders
182
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
25 filings · latest Feb 9, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Feb 9, 2026 | Baillie Gifford &Amp; Co | 13G/A | 4.3% | 1.29M | SEC |
| 2 | Nov 10, 2025 | Baillie Gifford &Amp; Co | 13G/A | 5.1% | 1.53M | SEC |
| 3 | Nov 5, 2025 | Fmr LLC | 13G/A | 9.0% | 2.70M | SEC |
| 4 | Jul 8, 2025 | Fmr LLC | 13G/A | 5.0% | 1.50M | SEC |
| 5 | May 12, 2025 | Fmr LLC | 13G/A | 11.3% | 3.37M | SEC |
| 6 | May 7, 2025 | Awm Investment Company, Inc. | 13G | 5.3% | 1.59M | SEC |
| 7 | Nov 12, 2024 | Vanguard Group Inc | 13G/A | 7.2% | 2.14M | SEC |
| 8 | Nov 7, 2024 | Fmr LLC | 13G/A | 10.3% | — | SEC |
| 9 | Nov 7, 2024 | Fmr LLC | 13G | 8.9% | — | SEC |
| 10 | Nov 4, 2024 | Vanguard Group Inc | 13G | 7.2% | 2.14M | SEC |
15 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Aehr Test Sys.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Blackrock, Inc. | 2.29M | $84.80M |
| 2 | Fmr LLC | 2.14M | $79.45M |
| 3 | Awm Investment Company, Inc. | 1.59M | $59.10M |
| 4 | Goldman Sachs Group Inc | 1.26M | $46.80M |
| 5 | Baillie Gifford & Co | 1.00M | $37.12M |
| 6 | Next Century Growth Investors LLC | 754.7K | $27.99M |
| 7 | Geode Capital Management, LLC | 725.7K | $26.91M |
| 8 | State Street Corp | 623.3K | $23.11M |
| 9 | William Blair Investment Management, LLC | 513.3K | $19.03M |
| 10 | Gilder Gagnon Howe & Co LLC | 444.3K | $16.47M |