Alpha and Omega Semiconductor
AOSL
185 hedge funds and large institutions have $619M invested in Alpha and Omega Semiconductor in 2025 Q3 according to their latest regulatory filings, with 35 funds opening new positions, 65 increasing their positions, 50 reducing their positions, and 14 closing their positions.
150% more first-time investments, than exits
New positions opened: 35 | Existing positions closed: 14
30% more repeat investments, than reductions
Existing positions increased: 65 | Existing positions reduced: 50
13% more funds holding
Funds holding: 164 → 185 (+21)
11% more capital invested
Capital invested by funds: $557M → $619M (+$61.9M)
10% more call options, than puts
Call options by funds: $2.38M | Put options by funds: $2.15M
0% more funds holding in top 10
Funds holding in top 10: 1 → 1 (0)
0.12% less ownership
Funds ownership: 73.81% → 73.69% (-0.12%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Millennium Management
New York
|
+$6.46M |
| 2 |
Manulife (Manufacturers Life Insurance)
Canada,
Ontario, Canada
|
+$3.99M |
| 3 |
SG Americas Securities
New York
|
+$3.53M |
| 4 |
Wellington Management Group
Boston,
Massachusetts
|
+$3.14M |
| 5 |
AI
Acuitas Investments
Seattle,
Washington
|
+$1.86M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Boston Partners
Boston,
Massachusetts
|
-$8.96M |
| 2 |
Goldman Sachs
New York
|
-$2.74M |
| 3 |
Victory Capital Management
San Antonio,
Texas
|
-$2.06M |
| 4 |
State Street
Boston,
Massachusetts
|
-$1.85M |
| 5 |
CSS
Cubist Systematic Strategies
Stamford,
Connecticut
|
-$1.13M |
AOSL Hedge Fund Activity: Q3 2025 in Review
185 of the 7,638 institutional investors tracked by Wall St. Rank reported a position in Alpha and Omega Semiconductor (AOSL) for Q3 2025, worth a combined $619M — up 11% from $557M a quarter earlier.
Buyers outnumbered sellers: 35 funds opened new AOSL positions and 14 closed out — a net gain of 21 holders — while 65 added to existing stakes and 50 trimmed.
The largest buyer was Millennium Management, adding an estimated $6.46M. The largest seller was Boston Partners, cutting an estimated $8.96M.
- 185 institutional investors held Alpha and Omega Semiconductor (AOSL) as of Q3 2025, up from 164 in Q2 2025.
- Funds reported $619M of Alpha and Omega Semiconductor stock for Q3 2025, up 11% quarter-over-quarter.
- 35 funds opened new Alpha and Omega Semiconductor positions in Q3 2025 and 14 closed out, a net change of +21 holders.
- The largest Alpha and Omega Semiconductor buyer in Q3 2025 was Millennium Management, an estimated $6.46M added.
- The largest Alpha and Omega Semiconductor seller in Q3 2025 was Boston Partners, an estimated $8.96M sold.
Based on aggregated 13F filings for Q3 2025.