Alpha and Omega Semiconductor Ownership | Who Owns Alpha and Omega Semiconductor?
Alpha and Omega Semiconductor Ownership Summary
Alpha and Omega Semiconductor is owned by 12.61% institutional investors, 16.73% insiders, and 70.66% retail investors. Blackrock is the largest institutional shareholder, holding 13.11% of AOSL shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 5.05% of its assets in Alpha and Omega Semiconductor shares.
AOSL Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Alpha and Omega Semiconductor | 12.61% | 16.73% | 70.66% |
| Sector | Technology Stocks | 35.36% | 13.13% | 51.51% |
| Idea | Semiconductor Stocks List | 60.61% | 7.19% | 32.20% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock | 3.73M | 13.11% | $139.32M |
| Blackrock funding, inc. /de | 3.91M | 13.11% | $77.44M |
| Vanguard group | 2.42M | 8.07% | $48.03M |
| Dimensional fund advisors lp | 1.56M | 5.25% | $34.65M |
| Manufacturers life insurance company, the | 1.56M | 5.20% | $43.48M |
| State street | 1.21M | 4.05% | $33.89M |
| Wellington management group llp | 864.97K | 2.89% | $24.18M |
| Geode capital management | 611.09K | 2.05% | $12.11M |
| Royce & associates lp | 518.12K | 1.74% | $11.48M |
| Fmr | 515.04K | 1.72% | $14.40M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Gagnon advisors | 120.20K | 1.96% | $2.66M |
| Mork capital management | 45.00K | 0.87% | $1.26M |
| Gagnon securities | 167.87K | 0.86% | $3.72M |
| Uniplan investment counsel | 160.51K | 0.44% | $4.49M |
| Numerai gp | 89.69K | 0.35% | $2.51M |
| Oberweis asset management inc/ | 271.10K | 0.29% | $7.58M |
| Peregrine capital management | 161.82K | 0.13% | $3.59M |
| Counterpoint mutual funds | 39.58K | 0.13% | $877.07K |
| Royce & associates lp | 518.12K | 0.11% | $11.48M |
| Redwood wealth management group | 11.34K | 0.11% | $251.23K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Vanguard fiduciary trust | 162.94K | 0.00% | 162.94K |
| Manufacturers life insurance company, the | 1.56M | 0.04% | 143.60K |
| Connor, clark & lunn investment management | 336.72K | 0.02% | 132.21K |
| Wellington management group llp | 864.97K | 0.00% | 113.08K |
| Wedge capital management l l p/nc | 112.55K | 0.05% | 112.55K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Hood river capital management | - | - | -1.99M |
| Robeco schweiz | - | - | -785.26K |
| Boston partners | - | - | -689.14K |
| Point72 asset management | - | - | -471.54K |
| Clearline capital lp | - | - | -372.78K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Vanguard fiduciary trust | 162.94K | 0.00% | 162.94K | $3.61M |
| Wedge capital management l l p/nc | 112.55K | 0.05% | 112.55K | $2.49M |
| Y-intercept (hong kong) | 35.37K | 0.01% | 35.37K | $783.80K |
| Massachusetts financial services co /ma/ | 28.44K | 0.00% | 28.44K | $563.38K |
| Exoduspoint capital management, lp | 27.95K | 0.01% | 27.95K | $781.43K |
Sold Out
| Holder | Change |
|---|---|
| Clearstead advisors | -1.00 |
| Allspring global investments | -3.00 |
| Wealthtrak capital management | -5.00 |
| Td capital management | -8.00 |
| Wealthspire advisors | -12.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Dec 31, 2025 | 48 | -74.87% | 3,787,582 | -82.89% | 12 | 0.23% | 17 | -83.81% | 23 | -52.08% |
| Sep 30, 2025 | 78 | -52.44% | 5,405,944 | -74.12% | 18 | 0.36% | 39 | -62.50% | 17 | -41.38% |
| Jun 30, 2025 | 169 | 4.97% | 21,702,848 | -4.08% | 73 | 1.26% | 104 | 57.58% | 33 | -44.07% |
| Mar 31, 2025 | 160 | -14.89% | 22,622,801 | 10.02% | 76 | 1.54% | 65 | -33.67% | 60 | 13.21% |
| Dec 31, 2024 | 185 | 1.65% | 20,553,369 | 5.02% | 70 | 1.55% | 96 | 4.35% | 52 | -1.89% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 1.51M | 5.05% | 393.00 |
| Hood River Small-Cap Growth Instl | 1.34M | 4.49% | 577.98K |
| RobecoSAM Smart Energy B EUR | 770.00K | 2.59% | - |
| Robeco Smart Energy F-EUR Cap | 770.00K | 2.57% | - |
| Vanguard Total Stock Mkt Idx Inv | 749.08K | 2.52% | - |
| Vanguard US Total Market Shares ETF | 726.32K | 2.47% | - |
| Vanguard Information Technology ETF | 629.12K | 2.11% | -810.00 |
| JHancock Small Cap Core NAV | 612.17K | 2.05% | - |
| iShares Russell 2000 ETF | 600.15K | 2.01% | 5.08K |
| Invesco Semiconductors ETF | 593.89K | 2.00% | - |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Apr 17, 2026 | Liang Yifan | CFO and Corp Secretary | Sell | $301.88K |
| Apr 17, 2026 | Chang Stephen Chunping | Chief Executive Officer | Sell | $345.89K |
| Apr 17, 2026 | Chang Stephen Chunping | Chief Executive Officer | Sell | $118.01K |
| Apr 17, 2026 | Chang Stephen Chunping | Chief Executive Officer | Sell | $49.09K |
| Apr 16, 2026 | Xue Bing | EVP-WW Sales & Bus Development | Sell | $57.18K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q2 | - | 9 |
| 2026 Q1 | 1 | 3 |
| 2025 Q4 | - | 2 |
| 2025 Q3 | - | - |
| 2025 Q2 | - | 1 |
AOSL Ownership FAQ
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