Alpha and Omega Semiconductor Ownership | Who Owns Alpha and Omega Semiconductor?
Alpha and Omega Semiconductor Ownership Summary
Alpha and Omega Semiconductor is owned by 77.72% institutional investors, 16.93% insiders, and 5.35% retail investors. Blackrock funding, inc. /de is the largest institutional shareholder, holding 14.24% of AOSL shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 4.87% of its assets in Alpha and Omega Semiconductor shares.
AOSL Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Alpha and Omega Semiconductor | 77.72% | 16.93% | 5.35% |
| Sector | Technology Stocks | 78.17% | 14.96% | 6.88% |
| Idea | Semiconductor Stocks List | 74.05% | 7.18% | 18.78% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Blackrock funding, inc. /de | 4.26M | 14.24% | $201.46M |
| Blackrock | 3.73M | 13.11% | $139.32M |
| Vanguard group | 2.42M | 8.07% | $48.03M |
| State street | 2.35M | 7.85% | $111.10M |
| Manufacturers life insurance company, the | 1.38M | 4.60% | $65.08M |
| Dimensional fund advisors lp | 1.34M | 4.47% | $63.18M |
| Vanguard capital management | 1.07M | 3.58% | $50.69M |
| Two sigma investments, lp | 951.58K | 3.18% | $45.04M |
| Fmr | 791.72K | 2.65% | $37.47M |
| Geode capital management | 658.90K | 2.20% | $31.19M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Weber capital management llc /adv | 536.74K | 13.46% | $14.76M |
| Apis capital advisors | 206.28K | 0.95% | $9.76M |
| Mork capital management | 30.00K | 0.91% | $1.42M |
| Oberweis asset management inc/ | 271.10K | 0.29% | $7.58M |
| Dynamic technology lab private | 21.44K | 0.23% | $1.01M |
| Numerai gp | 32.94K | 0.13% | $1.56M |
| Arosa capital management lp | 15.00K | 0.13% | $709.95K |
| Bridgeway capital management | 149.54K | 0.12% | $7.08M |
| Royce & associates lp | 309.01K | 0.12% | $14.63M |
| Bayforest capital | 2.63K | 0.11% | $124.24K |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| State street | 2.35M | 0.00% | 945.90K |
| Sixth street partners management company | 403.20K | 0.00% | 403.20K |
| Two sigma investments, lp | 951.58K | 0.03% | 398.56K |
| Blackrock funding, inc. /de | 4.26M | 0.00% | 351.75K |
| Connor, clark & lunn investment management | 636.89K | 0.06% | 300.18K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Hood river capital management | - | - | -1.99M |
| Robeco schweiz | - | - | -785.26K |
| Boston partners | - | - | -689.14K |
| Clearline capital lp | - | - | -372.78K |
| Driehaus capital management | - | - | -313.59K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Sixth street partners management company | 403.20K | 0.00% | 403.20K | $19.08M |
| Apis capital advisors | 206.28K | 0.95% | 206.28K | $9.76M |
| T. rowe price investment management | 154.00K | 0.00% | 154.00K | $7.29M |
| Imc-chicago | 99.79K | 0.00% | 99.79K | $4.72B |
| Healthcare of ontario pension plan trust fund | 29.00K | 0.00% | 29.00K | $1.37M |
Sold Out
| Holder | Change |
|---|---|
| Clearstead advisors | -1.00 |
| Davis capital management | -1.00 |
| Nbc securities | -2.00 |
| Allspring global investments | -3.00 |
| Wealthtrak capital management | -5.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Jun 30, 2026 | 228 | 23.91% | 23,228,615 | 4.91% | 77 | 1.41% | 124 | 30.53% | 66 | 29.41% |
| Mar 31, 2026 | 78 | -54.91% | 6,535,302 | -70.85% | 21 | 0.39% | 34 | -60.92% | 25 | -56.14% |
| 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% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 1.48M | 4.87% | 381.00 |
| 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 Morn Total Stk Mkt Idx Investor | 759.08K | 2.54% | 10.00K |
| Vanguard Total Stock Mkt Idx Inv | 759.08K | 2.54% | 10.00K |
| Vanguard MStar Total Stk Mkt Idx Invest | 759.08K | 2.50% | - |
| Vanguard US Total Market Shares ETF | 726.32K | 2.47% | - |
| Vanguard Information Technology ETF | 644.23K | 2.13% | 1.49K |
| iShares Russell 2000 ETF | 641.78K | 2.12% | -7.42K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Jul 16, 2026 | Xue Bing | EVP-WW Sales & Bus Development | Sell | $29.74K |
| Jun 16, 2026 | Xue Bing | EVP-WW Sales & Bus Development | Sell | $231.49K |
| May 22, 2026 | Chen Claudia | - | Sell | $8.80K |
| May 22, 2026 | Chen Claudia | - | Sell | $151.74K |
| May 18, 2026 | Xue Bing | EVP-WW Sales & Bus Development | Sell | $201.56K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2026 Q3 | - | 1 |
| 2026 Q2 | - | 13 |
| 2026 Q1 | 1 | 3 |
| 2025 Q4 | - | 2 |
| 2025 Q3 | - | - |
AOSL Ownership FAQ
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