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Alpha and Omega Semiconductor (AOSL) Institutional Ownership

Alpha and Omega Semiconductor logo
$25.86 -0.72 (-2.71%)
Closing price 04:00 PM Eastern
Extended Trading
$25.80 -0.06 (-0.25%)
As of 04:31 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.
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Institutional Ownership Changes (13F Filings) for Alpha and Omega Semiconductor (NASDAQ:AOSL)

Current
Institutional Ownership
Percentage
78.97%
Number of
Institutional Buyers
(last 12 months)
76
Total
Institutional Inflows
(last 12 months)
$78.81M
Number of
Institutional Sellers
(last 12 months)
41
Total
Institutional Outflows
(last 12 months)
$59.51M
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AOSL Institutional Buying and Selling by Quarter

Alpha and Omega Semiconductor Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
10/9/2026GAMMA Investing LLC4,095$113K0.0%+15.2%0.014%
10/8/2026Farther Finance Advisors LLC1,223$34K0.0%+2,008.6%0.004%
10/6/2026Congress Asset Management Co.246,735$6.79M0.0%+21.3%0.814%
9/9/2026WINTON GROUP Ltd34,889$1.65M0.1%-42.7%0.115%
9/9/2026Engineers Gate Manager LP12,250$580K0.0%-80.6%0.040%
9/9/2026Integrated Wealth Concepts LLC843$40K0.0%N/A0.003%
9/8/2026Arizona State Retirement System6,775$321K0.0%N/A0.022%
8/21/2026AXQ Capital LP7,546$357K0.0%N/A0.025%
8/19/2026Wellington Management Group LLP412,910$19.54M0.0%-40.6%1.380%
8/18/2026Public Employees Retirement System of Ohio4,157$197K0.0%N/A0.014%
8/13/2026Globeflex Capital L P3,845$182K0.0%N/A0.013%
7/10/2026Wedge Capital Management L L P NC91,440$4.33M0.1%-18.8%0.306%
5/19/2026Bank of America Corp DE127,692$2.83M0.0%-42.3%0.427%
5/18/2026California State Teachers Retirement System23,784$527K0.0%-7.7%0.079%
5/18/2026Royal Bank of Canada7,937$175K0.0%-11.2%0.027%
5/18/2026Empowered Funds LLC120,331$2.67M0.0%+9.9%0.402%
5/16/2026The Manufacturers Life Insurance Company1,574,462$34.89M0.0%-3.3%5.260%
5/16/2026Quantinno Capital Management LP37,248$825K0.0%+15.2%0.124%
5/14/2026Public Employees Retirement System of Ohio9,628$213K0.0%+1,361.0%0.032%
5/13/2026First Citizens Bank & Trust Co.15,830$351K0.0%N/A0.053%
5/7/2026Dimensional Fund Advisors LP1,563,871$34.65M0.0%-1.3%5.255%
5/5/2026Bank of New York Mellon Corp139,534$3.09M0.0%-4.0%0.469%
5/4/2026Principal Financial Group Inc.120,075$2.66M0.0%+1.0%0.403%
4/27/2026Counterpoint Mutual Funds LLC39,579$877K0.1%N/A0.133%
4/27/2026New York State Teachers Retirement System4,694$104K0.0%-15.1%0.016%
4/27/2026Y Intercept Hong Kong Ltd35,370$784K0.0%N/A0.119%
4/24/2026Redwood Wealth Management Group LLC11,337$251K0.1%-19.5%0.038%
4/24/2026Peregrine Capital Management LLC161,821$3.59M0.1%-8.8%0.544%
4/21/2026Louisiana State Employees Retirement System11,000$244K0.0%N/A0.037%
4/16/2026SG Americas Securities LLC72,458$1.61M0.0%-7.8%0.243%
2/19/2026Invesco Ltd.381,767$7.56M0.0%+19.8%1.283%
2/18/2026Summit Global Investments11,238$223K0.0%N/A0.038%
2/18/2026Empowered Funds LLC109,541$2.17M0.0%+106.7%0.368%
2/18/2026XTX Topco Ltd37,263$738K0.0%N/A0.125%
2/18/2026Uniplan Investment Counsel Inc.152,820$3.03M0.9%-4.8%0.514%
2/18/2026Susquehanna Portfolio Strategies LLC66,647$1.32M0.0%-24.9%0.224%
2/18/2026Tudor Investment Corp ET AL15,401$305K0.0%+41.1%0.052%
2/18/2026Numerai GP LLC120,155$2.38M0.3%+34.0%0.404%
2/18/2026Millennium Management LLC59,983$1.19M0.0%-90.6%0.202%
2/18/2026Engineers Gate Manager LP45,654$904K0.0%+64.9%0.153%
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2/18/2026Bridgeway Capital Management LLC129,541$2.57M0.1%+77.5%0.435%
2/17/2026AQR Capital Management LLC82,032$1.63M0.0%+36.5%0.276%
2/17/2026Trexquant Investment LP151,630$3.00M0.0%+743.8%0.509%
2/17/2026Price T Rowe Associates Inc. MD27,858$552K0.0%+4.6%0.094%
2/17/2026Arosa Capital Management LP30,000$594K0.1%N/A0.101%
2/17/2026California State Teachers Retirement System25,763$510K0.0%+12.1%0.087%
2/17/2026Russell Investments Group Ltd.205,775$4.08M0.0%+8.2%0.691%
2/17/2026State of Wisconsin Investment Board39,768$788K0.0%-30.1%0.134%
2/17/2026Royal Bank of Canada8,938$177K0.0%+9.2%0.030%
2/16/2026Verition Fund Management LLC75,837$1.50M0.0%-7.0%0.255%
2/16/2026Barclays PLC42,576$843K0.0%-48.5%0.143%
2/13/2026The Manufacturers Life Insurance Company 1,628,634$32.26M0.0%+4.7%5.473%
2/13/2026Jacobs Levy Equity Management Inc.124,751$2.47M0.0%N/A0.419%
2/13/2026Public Sector Pension Investment Board86,383$1.71M0.0%-10.4%0.290%
2/13/2026Charles Schwab Investment Management Inc.393,773$7.80M0.0%+14.3%1.323%
2/13/2026State Street Corp1,474,175$29.20M0.0%+21.6%4.954%
2/13/2026Boston Partners689,143$13.66M0.0%-12.4%2.316%
2/13/2026Dynamic Technology Lab Private Ltd12,515$248K0.1%N/A0.042%
2/13/2026Wells Fargo & Company MN29,571$586K0.0%+43.0%0.099%
2/12/2026Renaissance Technologies LLC10,500$208K0.0%N/A0.035%
2/12/2026Dimensional Fund Advisors LP1,584,028$31.38M0.0%-6.1%5.323%
2/12/2026Swiss National Bank50,400$998K0.0%+2.6%0.169%
2/11/2026Empowered Funds LLC109,541$2.17M0.0%+106.7%0.368%
2/11/2026Deutsche Bank AG47,059$932K0.0%+1.8%0.158%
2/11/2026Franklin Resources Inc.20,281$402K0.0%+5.5%0.068%
2/11/2026JPMorgan Chase & Co.237,563$4.71M0.0%+49.6%0.798%
2/11/2026WINTON GROUP Ltd137,265$2.72M0.1%+189.9%0.461%
2/10/2026Goldman Sachs Group Inc.447,020$8.86M0.0%+20.7%1.502%
2/10/2026AXQ Capital LP20,511$406K0.1%N/A0.069%
2/10/2026Intech Investment Management LLC14,476$287K0.0%+11.8%0.049%
2/9/2026Geode Capital Management LLC611,089$12.11M0.0%+0.6%2.053%
2/9/2026Royce & Associates LP474,015$9.39M0.1%+10.9%1.593%
1/30/2026New York State Teachers Retirement System5,528$110K0.0%-14.1%0.018%
1/29/2026Weber Capital Management LLC ADV547,308$10.84M10.2%N/A1.821%
1/29/2026UBS Group AG217,121$4.30M0.0%+224.7%0.722%
1/29/2026Teachers Retirement System of The State of Kentucky6,048$120K0.0%-11.4%0.020%
1/29/2026Vanguard Group Inc.2,424,320$48.03M0.0%-1.2%8.065%
1/28/2026Peregrine Capital Management LLC177,422$3.52M0.1%-20.1%0.590%
1/27/2026Zurcher Kantonalbank Zurich Cantonalbank7,926$157K0.0%+79.9%0.026%
1/22/2026Massachusetts Financial Services Co. MA28,439$563K0.0%N/A0.095%
1/9/2026SG Americas Securities LLC78,548$1.56M0.0%-38.3%0.261%
1/5/2026GAMMA Investing LLC2,501$50K0.0%-39.1%0.008%
1/1/2026JPMorgan Chase & Co.158,844$4.44M0.0%+72.4%0.528%
1/1/2026Tudor Investment Corp ET AL10,913$305K0.0%-75.5%0.036%
12/9/2025Tudor Investment Corp ET AL10,913$305K0.0%-75.5%0.036%
11/18/2025Acuitas Investments LLC240,920$6.74M4.3%+38.6%0.801%
11/17/2025Oberweis Asset Management Inc.271,100$7.58M0.3%+11.0%0.902%
11/17/2025Verition Fund Management LLC81,513$2.28M0.0%+31.5%0.271%
11/17/2025Northwestern Mutual Wealth Management Co.2,205$62K0.0%N/A0.007%
11/17/2025Numerai GP LLC89,695$2.51M0.4%+37.6%0.298%
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11/17/2025Millennium Management LLC637,876$17.84M0.0%+57.5%2.122%
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.11,727$328K0.0%-14.7%0.039%
11/17/2025Jain Global LLC10,800$302K0.0%N/A0.036%
11/17/2025Bank of America Corp DE179,297$5.01M0.0%-26.1%0.596%
11/17/2025Algert Global LLC63,319$1.77M0.0%+64.3%0.211%
11/17/2025Ameriprise Financial Inc.47,104$1.32M0.0%-5.6%0.157%
11/14/2025Creative Planning11,993$335K0.0%+24.2%0.040%
11/14/2025Raymond James Financial Inc.30,612$856K0.0%+38.2%0.102%
11/14/2025Brooklyn Investment Group10,676$299K0.0%-28.8%0.036%
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC38,128$1.07M0.0%-40.7%0.127%


AOSL Institutional Ownership - Frequently Asked Questions

During the previous two years, 164 institutional investors and hedge funds held shares of Alpha and Omega Semiconductor. The most heavily invested institutionals were Vanguard Group Inc. ($48.03M), Hood River Capital Management LLC ($42.16M), The Manufacturers Life Insurance Company ($34.89M), Dimensional Fund Advisors LP ($34.65M), State Street Corp ($29.20M), Robeco Schweiz AG ($21.96M), and Wellington Management Group LLP ($19.54M).Learn more on Alpha and Omega Semiconductor's institutional investors.

78.97% of Alpha and Omega Semiconductor's stock is owned by institutional investors. Learn more on AOSL's institutional investor holdings.

Of the 146 institutional investors that purchased Alpha and Omega Semiconductor's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Boston Partners ($1.26M), Hood River Capital Management LLC ($1.14M), Robeco Schweiz AG ($785.26K), Invesco Ltd. ($673.47K), State Street Corp ($596.77K), Weber Capital Management LLC ADV ($547.31K), and Wellington Management Group LLP ($527.98K).

Institutional investors have bought a total of 3,451,418 shares in the last 24 months. This purchase volume represents approximately $78.81M in transactions.

Of the 41 institutional investors that sold Alpha and Omega Semiconductor's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Millennium Management LLC ($577.89K), Boston Partners ($420.23K), Wellington Management Group LLP ($281.90K), Bank of America Corp DE ($157.09K), Dimensional Fund Advisors LP ($156.36K), Tudor Investment Corp ET AL ($67.14K), and Peregrine Capital Management LLC ($60.92K).

Institutional investors have sold a total of 2,200,924 shares in the last 24 months. This volume of shares sold represents approximately $59.51M in transactions.


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Institutional ownership data for NASDAQ:AOSL is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 10/9/2026. New 13F filings are added each quarter as they're published.
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