Aehr Test Systems
AEHR
150 hedge funds and large institutions have $428M invested in Aehr Test Systems in 2025 Q4 according to their latest regulatory filings, with 29 funds opening new positions, 57 increasing their positions, 42 reducing their positions, and 27 closing their positions.
101% more call options, than puts
Call options by funds: $80.4M | Put options by funds: $40.1M
36% more repeat investments, than reductions
Existing positions increased: 57 | Existing positions reduced: 42
2.68% more ownership
Funds ownership: 67.93% → 70.62% (+2.7%)
7% more first-time investments, than exits
New positions opened: 29 | Existing positions closed: 27
1% more funds holding
Funds holding: 149 → 150 (+1)
30% less capital invested
Capital invested by funds: $613M → $428M (-$185M)
60% less funds holding in top 10
Funds holding in top 10: 5 → 2 (-3)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Wellington Management Group
Boston,
Massachusetts
|
+$11.4M |
| 2 |
NCGI
Next Century Growth Investors
Plymouth,
Minnesota
|
+$6.68M |
| 3 |
Two Sigma Investments
New York
|
+$6.05M |
| 4 |
Jane Street
New York
|
+$5.82M |
| 5 |
HFF
Halter Ferguson Financial
Carmel,
Indiana
|
+$4.57M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
William Blair Investment Management
Chicago,
Illinois
|
-$9.64M |
| 2 |
Invesco
Atlanta,
Georgia
|
-$8.18M |
| 3 |
Baillie Gifford & Co
Edinburgh,
United Kingdom
|
-$5.8M |
| 4 |
ECM
ExodusPoint Capital Management
New York
|
-$5.38M |
| 5 |
Fidelity Investments
Boston,
Massachusetts
|
-$4.68M |
AEHR Hedge Fund Activity: Q4 2025 in Review
150 of the 8,223 institutional investors tracked by Wall St. Rank reported a position in Aehr Test Systems (AEHR) for Q4 2025, worth a combined $428M — down 30% from $613M a quarter earlier.
Buyers outnumbered sellers: 29 funds opened new AEHR positions and 27 closed out — a net gain of 2 holders — while 57 added to existing stakes and 42 trimmed.
The largest buyer was Wellington Management Group, adding an estimated $11.4M. The largest seller was William Blair Investment Management, cutting an estimated $9.64M.
- 150 institutional investors held Aehr Test Systems (AEHR) as of Q4 2025, up from 149 in Q3 2025.
- Funds reported $428M of Aehr Test Systems stock for Q4 2025, down 30% quarter-over-quarter.
- 29 funds opened new Aehr Test Systems positions in Q4 2025 and 27 closed out, a net change of +2 holders.
- The largest Aehr Test Systems buyer in Q4 2025 was Wellington Management Group, an estimated $11.4M added.
- The largest Aehr Test Systems seller in Q4 2025 was William Blair Investment Management, an estimated $9.64M sold.
Based on aggregated 13F filings for Q4 2025.