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Alpha and Omega Semiconductor (AOSL) Institutional Ownership

Alpha and Omega Semiconductor logo
$26.80 +0.53 (+2.01%)
As of 12:57 PM Eastern
This is a fair market value price provided by Massive. Learn more.

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)
75
Total
Institutional Inflows
(last 12 months)
$78.28M
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

Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
9/9/2026 WINTON GROUP Ltd34,889$1.65M0.1%-42.7%0.115%
9/9/2026 Engineers Gate Manager LP12,250$580K0.0%-80.6%0.040%
9/9/2026 Integrated Wealth Concepts LLC843$40K0.0%N/A0.003%
9/8/2026 Arizona State Retirement System6,775$321K0.0%N/A0.022%
8/21/2026 AXQ Capital LP7,546$357K0.0%N/A0.025%
8/19/2026 Wellington Management Group LLP412,910$19.54M0.0%-40.6%1.380%
8/18/2026 Public Employees Retirement System of Ohio4,157$197K0.0%N/A0.014%
8/13/2026 Globeflex Capital L P3,845$182K0.0%N/A0.013%
7/10/2026 Wedge Capital Management L L P NC91,440$4.33M0.1%-18.8%0.306%
5/19/2026 Bank of America Corp DE127,692$2.83M0.0%-42.3%0.427%
5/18/2026 California State Teachers Retirement System23,784$527K0.0%-7.7%0.079%
5/18/2026 Royal Bank of Canada7,937$175K0.0%-11.2%0.027%
5/18/2026 Empowered Funds LLC120,331$2.67M0.0%+9.9%0.402%
5/16/2026 The Manufacturers Life Insurance Company1,574,462$34.89M0.0%-3.3%5.260%
5/16/2026 Quantinno Capital Management LP37,248$825K0.0%+15.2%0.124%
5/14/2026 Public Employees Retirement System of Ohio9,628$213K0.0%+1,361.0%0.032%
5/13/2026 First Citizens Bank & Trust Co.15,830$351K0.0%N/A0.053%
5/7/2026 Dimensional Fund Advisors LP1,563,871$34.65M0.0%-1.3%5.255%
5/5/2026 Bank of New York Mellon Corp139,534$3.09M0.0%-4.0%0.469%
5/4/2026 Principal Financial Group Inc.120,075$2.66M0.0%+1.0%0.403%
4/27/2026 Counterpoint Mutual Funds LLC39,579$877K0.1%N/A0.133%
4/27/2026 New York State Teachers Retirement System4,694$104K0.0%-15.1%0.016%
4/27/2026 Y Intercept Hong Kong Ltd35,370$784K0.0%N/A0.119%
4/24/2026 Redwood Wealth Management Group LLC11,337$251K0.1%-19.5%0.038%
4/24/2026 Peregrine Capital Management LLC161,821$3.59M0.1%-8.8%0.544%
4/21/2026 Louisiana State Employees Retirement System11,000$244K0.0%N/A0.037%
4/16/2026 SG Americas Securities LLC72,458$1.61M0.0%-7.8%0.243%
2/19/2026 Invesco Ltd.381,767$7.56M0.0%+19.8%1.283%
2/18/2026 Summit Global Investments11,238$223K0.0%N/A0.038%
2/18/2026 Empowered Funds LLC109,541$2.17M0.0%+106.7%0.368%
2/18/2026 XTX Topco Ltd37,263$738K0.0%N/A0.125%
2/18/2026 Uniplan Investment Counsel Inc.152,820$3.03M0.9%-4.8%0.514%
2/18/2026 Susquehanna Portfolio Strategies LLC66,647$1.32M0.0%-24.9%0.224%
2/18/2026 Tudor Investment Corp ET AL15,401$305K0.0%+41.1%0.052%
2/18/2026 Numerai GP LLC120,155$2.38M0.3%+34.0%0.404%
2/18/2026 Millennium Management LLC59,983$1.19M0.0%-90.6%0.202%
2/18/2026 Engineers Gate Manager LP45,654$904K0.0%+64.9%0.153%
2/18/2026 Bridgeway Capital Management LLC129,541$2.57M0.1%+77.5%0.435%
2/17/2026 AQR Capital Management LLC82,032$1.63M0.0%+36.5%0.276%
2/17/2026 Trexquant Investment LP151,630$3.00M0.0%+743.8%0.509%
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2/17/2026 Price T Rowe Associates Inc. MD27,858$552K0.0%+4.6%0.094%
2/17/2026 Arosa Capital Management LP30,000$594K0.1%N/A0.101%
2/17/2026 California State Teachers Retirement System25,763$510K0.0%+12.1%0.087%
2/17/2026 Russell Investments Group Ltd.205,775$4.08M0.0%+8.2%0.691%
2/17/2026 State of Wisconsin Investment Board39,768$788K0.0%-30.1%0.134%
2/17/2026 Royal Bank of Canada8,938$177K0.0%+9.2%0.030%
2/16/2026 Verition Fund Management LLC75,837$1.50M0.0%-7.0%0.255%
2/16/2026 Barclays PLC42,576$843K0.0%-48.5%0.143%
2/13/2026 The Manufacturers Life Insurance Company 1,628,634$32.26M0.0%+4.7%5.473%
2/13/2026 Jacobs Levy Equity Management Inc.124,751$2.47M0.0%N/A0.419%
2/13/2026 Public Sector Pension Investment Board86,383$1.71M0.0%-10.4%0.290%
2/13/2026 Charles Schwab Investment Management Inc.393,773$7.80M0.0%+14.3%1.323%
2/13/2026 State Street Corp1,474,175$29.20M0.0%+21.6%4.954%
2/13/2026 Boston Partners689,143$13.66M0.0%-12.4%2.316%
2/13/2026 Dynamic Technology Lab Private Ltd12,515$248K0.1%N/A0.042%
2/13/2026 Wells Fargo & Company MN29,571$586K0.0%+43.0%0.099%
2/12/2026 Renaissance Technologies LLC10,500$208K0.0%N/A0.035%
2/12/2026 Dimensional Fund Advisors LP1,584,028$31.38M0.0%-6.1%5.323%
2/12/2026 Swiss National Bank50,400$998K0.0%+2.6%0.169%
2/11/2026 Empowered Funds LLC109,541$2.17M0.0%+106.7%0.368%
2/11/2026 Deutsche Bank AG47,059$932K0.0%+1.8%0.158%
2/11/2026 Franklin Resources Inc.20,281$402K0.0%+5.5%0.068%
2/11/2026 JPMorgan Chase & Co.237,563$4.71M0.0%+49.6%0.798%
2/11/2026 WINTON GROUP Ltd137,265$2.72M0.1%+189.9%0.461%
2/10/2026 Goldman Sachs Group Inc.447,020$8.86M0.0%+20.7%1.502%
2/10/2026 AXQ Capital LP20,511$406K0.1%N/A0.069%
2/10/2026 Intech Investment Management LLC14,476$287K0.0%+11.8%0.049%
2/9/2026 Geode Capital Management LLC611,089$12.11M0.0%+0.6%2.053%
2/9/2026 Royce & Associates LP474,015$9.39M0.1%+10.9%1.593%
1/30/2026 New York State Teachers Retirement System5,528$110K0.0%-14.1%0.018%
1/29/2026 Weber Capital Management LLC ADV547,308$10.84M10.2%N/A1.821%
1/29/2026 UBS Group AG217,121$4.30M0.0%+224.7%0.722%
1/29/2026 Teachers 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%
1/28/2026 Peregrine Capital Management LLC177,422$3.52M0.1%-20.1%0.590%
1/27/2026 Zurcher Kantonalbank Zurich Cantonalbank7,926$157K0.0%+79.9%0.026%
1/22/2026 Massachusetts Financial Services Co. MA28,439$563K0.0%N/A0.095%
1/9/2026 SG Americas Securities LLC78,548$1.56M0.0%-38.3%0.261%
1/5/2026 GAMMA Investing LLC2,501$50K0.0%-39.1%0.008%
1/1/2026 JPMorgan Chase & Co.158,844$4.44M0.0%+72.4%0.528%
1/1/2026 Tudor Investment Corp ET AL10,913$305K0.0%-75.5%0.036%
12/9/2025 Tudor Investment Corp ET AL10,913$305K0.0%-75.5%0.036%
11/18/2025 Acuitas Investments LLC240,920$6.74M4.3%+38.6%0.801%
11/17/2025 Oberweis Asset Management Inc.271,100$7.58M0.3%+11.0%0.902%
11/17/2025 Verition Fund Management LLC81,513$2.28M0.0%+31.5%0.271%
11/17/2025 Northwestern Mutual Wealth Management Co.2,205$62K0.0%N/A0.007%
11/17/2025 Numerai GP LLC89,695$2.51M0.4%+37.6%0.298%
11/17/2025 Millennium Management LLC637,876$17.84M0.0%+57.5%2.122%
11/17/2025 MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.11,727$328K0.0%-14.7%0.039%
11/17/2025 Jain Global LLC10,800$302K0.0%N/A0.036%
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11/17/2025 Bank of America Corp DE179,297$5.01M0.0%-26.1%0.596%
11/17/2025 Algert Global LLC63,319$1.77M0.0%+64.3%0.211%
11/17/2025 Ameriprise Financial Inc.47,104$1.32M0.0%-5.6%0.157%
11/14/2025 Creative Planning11,993$335K0.0%+24.2%0.040%
11/14/2025 Raymond James Financial Inc.30,612$856K0.0%+38.2%0.102%
11/14/2025Brooklyn Investment Group10,676$299K0.0%-28.8%0.036%
11/14/2025 UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC38,128$1.07M0.0%-40.7%0.127%
11/14/2025 Two Sigma Investments LP162,320$4.54M0.0%-17.6%0.540%
11/14/2025 Bridgeway Capital Management LLC72,983$2.04M0.0%+189.8%0.243%
11/14/2025 Squarepoint Ops LLC22,525$630K0.0%+7.7%0.075%


AOSL Institutional Ownership - Frequently Asked Questions

During the previous two years, 163 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 145 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 3,431,462 shares in the last 24 months. This purchase volume represents approximately $78.28M 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.



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 9/9/2026. New 13F filings are added each quarter as they're published.
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