FREMONT, CA
AEHR TEST SYSTEMSAEHR— Latest position per institution from SEC 13F filings
15
Institutional holders
28.23M
Total shares held
1.88B
Estimated value
1.41M
Avg. position size
CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM
CIK 1081019
Shares
3.30M
Value
34.37K
Filed
Jun 30, 2026
BLACKROCK, INC.
CIK 2012383
Shares
2.66M
Value
255.48M
Filed
Jun 30, 2026
VANGUARD GROUP INC
CIK 102909
Shares
2.34M
Value
47.19M
Filed
Dec 31, 2025
JANE STREET GROUP, LLC
CIK 1595888
Shares
2.25M
Value
216.16M
Filed
Jun 30, 2026
SUSQUEHANNA INTERNATIONAL GROUP, LLP
CIK 1446194
Shares
2.01M
Value
193.05M
Filed
Jun 30, 2026
BLACKROCK FINANCE, INC.
CIK 1364742
Shares
1.90M
Value
21.26M
Filed
Jun 30, 2024
CITADEL ADVISORS LLC
CIK 1423053
Shares
1.78M
Value
170.62M
Filed
Jun 30, 2026
VANGUARD CAPITAL MANAGEMENT LLC
CIK 2100119
Shares
1.32M
Value
126.83M
Filed
Jun 30, 2026
D. E. SHAW & CO., INC.
CIK 1009207
Shares
1.30M
Value
125.01M
Filed
Jun 30, 2026
TWO SIGMA INVESTMENTS, LP
CIK 1179392
Shares
1.18M
Value
113.46M
Filed
Jun 30, 2026
FMR LLC
CIK 315066
Shares
1.01M
Value
96.72M
Filed
Jun 30, 2026
VANGUARD PORTFOLIO MANAGEMENT LLC
CIK 2100121
Shares
966.66K
Value
92.86M
Filed
Jun 30, 2026
HOOD RIVER CAPITAL MANAGEMENT LLC
CIK 1578177
Shares
936.84K
Value
24.85M
Filed
Dec 31, 2023
CONGRESS ASSET MANAGEMENT CO
CIK 897378
Shares
875.57K
Value
23.23M
Filed
Dec 31, 2023
GEODE CAPITAL MANAGEMENT, LLC
CIK 1214717
Shares
875.50K
Value
84.11M
Filed
Jun 30, 2026
GOLDMAN SACHS GROUP INC
CIK 886982
Shares
810.04K
Value
77.81M
Filed
Jun 30, 2026
JPMORGAN CHASE & CO
CIK 19617
Shares
732.55K
Value
69.55M
Filed
Jun 30, 2026
STATE STREET CORP
CIK 93751
Shares
712.93K
Value
68.48M
Filed
Jun 30, 2026
CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD.
CIK 1596800
Shares
670.76K
Value
64.43M
Filed
Jun 30, 2026
SCULPTOR CAPITAL LP
CIK 1054587
Shares
600K
Value
12.11M
Filed
Dec 31, 2025
| # | Institution | CIK | Shares | Est. Value | Period |
|---|---|---|---|---|---|
| 1 | CALIFORNIA STATE TEACHERS RETIREMENT SYSTEM | 1081019 | 3.30M | 34.37K | Jun 30, 2026 |
| 2 | BLACKROCK, INC. | 2012383 | 2.66M | 255.48M | Jun 30, 2026 |
| 3 | VANGUARD GROUP INC | 102909 | 2.34M | 47.19M | Dec 31, 2025 |
| 4 | JANE STREET GROUP, LLC | 1595888 | 2.25M | 216.16M | Jun 30, 2026 |
| 5 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1446194 | 2.01M | 193.05M | Jun 30, 2026 |
| 6 | BLACKROCK FINANCE, INC. | 1364742 | 1.90M | 21.26M | Jun 30, 2024 |
| 7 | CITADEL ADVISORS LLC | 1423053 | 1.78M | 170.62M | Jun 30, 2026 |
| 8 | VANGUARD CAPITAL MANAGEMENT LLC | 2100119 | 1.32M | 126.83M | Jun 30, 2026 |
| 9 | D. E. SHAW & CO., INC. | 1009207 | 1.30M | 125.01M | Jun 30, 2026 |
| 10 | TWO SIGMA INVESTMENTS, LP | 1179392 | 1.18M | 113.46M | Jun 30, 2026 |
| 11 | FMR LLC | 315066 | 1.01M | 96.72M | Jun 30, 2026 |
| 12 | VANGUARD PORTFOLIO MANAGEMENT LLC | 2100121 | 966.66K | 92.86M | Jun 30, 2026 |
| 13 | HOOD RIVER CAPITAL MANAGEMENT LLC | 1578177 | 936.84K | 24.85M | Dec 31, 2023 |
| 14 | CONGRESS ASSET MANAGEMENT CO | 897378 | 875.57K | 23.23M | Dec 31, 2023 |
| 15 | GEODE CAPITAL MANAGEMENT, LLC | 1214717 | 875.50K | 84.11M | Jun 30, 2026 |
| 16 | GOLDMAN SACHS GROUP INC | 886982 | 810.04K | 77.81M | Jun 30, 2026 |
| 17 | JPMORGAN CHASE & CO | 19617 | 732.55K | 69.55M | Jun 30, 2026 |
| 18 | STATE STREET CORP | 93751 | 712.93K | 68.48M | Jun 30, 2026 |
| 19 | CONNOR, CLARK & LUNN INVESTMENT MANAGEMENT LTD. | 1596800 | 670.76K | 64.43M | Jun 30, 2026 |
| 20 | SCULPTOR CAPITAL LP | 1054587 | 600K | 12.11M | Dec 31, 2025 |
Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.