Aehr Test Systems
AEHR
149 hedge funds and large institutions have $613M invested in Aehr Test Systems in 2025 Q3 according to their latest regulatory filings, with 47 funds opening new positions, 42 increasing their positions, 40 reducing their positions, and 19 closing their positions.
169% more capital invested
Capital invested by funds: $228M → $613M (+$385M)
150% more funds holding in top 10
Funds holding in top 10: 2 → 5 (+3)
147% more first-time investments, than exits
New positions opened: 47 | Existing positions closed: 19
53% more call options, than puts
Call options by funds: $117M | Put options by funds: $76.6M
23% more funds holding
Funds holding: 121 → 149 (+28)
8.75% more ownership
Funds ownership: 59.18% → 67.93% (+8.8%)
5% more repeat investments, than reductions
Existing positions increased: 42 | Existing positions reduced: 40
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Fidelity Investments
Boston,
Massachusetts
|
+$26.1M |
| 2 |
William Blair Investment Management
Chicago,
Illinois
|
+$19.4M |
| 3 |
Invesco
Atlanta,
Georgia
|
+$7.3M |
| 4 |
GGHC
Gilder Gagnon Howe & Co
New York
|
+$7.02M |
| 5 |
NCGI
Next Century Growth Investors
Plymouth,
Minnesota
|
+$5.98M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Baillie Gifford & Co
Edinburgh,
United Kingdom
|
-$9.93M |
| 2 |
KCM
Kennedy Capital Management
St Louis,
Missouri
|
-$4.07M |
| 3 |
RHJA
Rice Hall James & Associates
San Diego,
California
|
-$3.64M |
| 4 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$3.4M |
| 5 |
Jane Street
New York
|
-$3.16M |
AEHR Hedge Fund Activity: Q3 2025 in Review
149 of the 7,621 institutional investors tracked by Wall St. Rank reported a position in Aehr Test Systems (AEHR) for Q3 2025, worth a combined $613M — up 169% from $228M a quarter earlier.
Buyers outnumbered sellers: 47 funds opened new AEHR positions and 19 closed out — a net gain of 28 holders — while 42 added to existing stakes and 40 trimmed.
The largest buyer was Fidelity Investments, adding an estimated $26.1M. The largest seller was Baillie Gifford & Co, cutting an estimated $9.93M.
- 149 institutional investors held Aehr Test Systems (AEHR) as of Q3 2025, up from 121 in Q2 2025.
- Funds reported $613M of Aehr Test Systems stock for Q3 2025, up 169% quarter-over-quarter.
- 47 funds opened new Aehr Test Systems positions in Q3 2025 and 19 closed out, a net change of +28 holders.
- The largest Aehr Test Systems buyer in Q3 2025 was Fidelity Investments, an estimated $26.1M added.
- The largest Aehr Test Systems seller in Q3 2025 was Baillie Gifford & Co, an estimated $9.93M sold.
Based on aggregated 13F filings for Q3 2025.