Alpha and Omega Semiconductor
AOSL
156 hedge funds and large institutions have $563M invested in Alpha and Omega Semiconductor in 2025 Q1 according to their latest regulatory filings, with 20 funds opening new positions, 46 increasing their positions, 59 reducing their positions, and 40 closing their positions.
19% more call options, than puts
Call options by funds: $5.28M | Put options by funds: $4.43M
6.19% more ownership
Funds ownership: 70.78% → 76.98% (+6.2%)
12% less funds holding
Funds holding: 177 → 156 (-21)
22% less repeat investments, than reductions
Existing positions increased: 46 | Existing positions reduced: 59
26% less capital invested
Capital invested by funds: $760M → $563M (-$197M)
50% less first-time investments, than exits
New positions opened: 20 | Existing positions closed: 40
100% less funds holding in top 10
Funds holding in top 10: 1 → 0 (-1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
HRCM
Hood River Capital Management
Palm Beach Gardens,
Florida
|
+$28.4M |
| 2 |
RS
Robeco Schweiz
Zurich,
Switzerland
|
+$26.2M |
| 3 |
Invesco
Atlanta,
Georgia
|
+$20.4M |
| 4 |
Boston Partners
Boston,
Massachusetts
|
+$19.2M |
| 5 |
CC
Clearline Capital
New York
|
+$12.5M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
DCM
Driehaus Capital Management
Chicago,
Illinois
|
-$11.6M |
| 2 |
Millennium Management
New York
|
-$9.51M |
| 3 |
CCM
CloudAlpha Capital Management
Hong Kong
|
-$8.01M |
| 4 |
BlackRock
New York
|
-$5.44M |
| 5 |
Renaissance Technologies
New York
|
-$4.9M |
AOSL Hedge Fund Activity: Q1 2025 in Review
156 of the 7,457 institutional investors tracked by Wall St. Rank reported a position in Alpha and Omega Semiconductor (AOSL) for Q1 2025, worth a combined $563M — down 26% from $760M a quarter earlier.
Sellers outnumbered buyers: 40 funds closed out of AOSL and 20 opened new positions — a net loss of 20 holders — while 59 trimmed existing stakes and 46 added.
The largest buyer was Hood River Capital Management, adding an estimated $28.4M. The largest seller was Driehaus Capital Management, exiting entirely with an estimated $11.6M sold.
- 156 institutional investors held Alpha and Omega Semiconductor (AOSL) as of Q1 2025, down from 177 in Q4 2024.
- Funds reported $563M of Alpha and Omega Semiconductor stock for Q1 2025, down 26% quarter-over-quarter.
- 20 funds opened new Alpha and Omega Semiconductor positions in Q1 2025 and 40 closed out, a net change of -20 holders.
- The largest Alpha and Omega Semiconductor buyer in Q1 2025 was Hood River Capital Management, an estimated $28.4M added.
- The largest Alpha and Omega Semiconductor seller in Q1 2025 was Driehaus Capital Management, an estimated $11.6M sold.
Based on aggregated 13F filings for Q1 2025.