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AOSL Insider Trading

Insider Ownership Percentage: 16.70%
Insider Buying (Last 12 Months): $0.00
Insider Selling (Last 12 Months): $464,759.60

Alpha and Omega Semiconductor Insider Trading History Chart

This chart shows the insider buying and selling history at Alpha and Omega Semiconductor by year and by quarter.

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Alpha and Omega Semiconductor Share Price & Price History

Current Price: $21.48
Price Change: ▼ Price Decrease of -0.24 (-1.10%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for AOSL up to the past year.

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Days: 30 | 90 | 365

Alpha and Omega Semiconductor Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
5/12/2025Bing XueEVPSell1,845$23.73$43,781.85130,951View SEC Filing Icon  
1/13/2025Bing XueEVPSell1,242$35.00$43,470.00115,368View SEC Filing Icon  
12/12/2024Bing XueEVPSell1,883$47.38$89,216.54127,103View SEC Filing Icon  
12/5/2024Claudia ChenDirectorSell5,623$51.27$288,291.2126,572View SEC Filing Icon  
12/4/2024Yifan LiangCFOSell31,004$49.21$1,525,706.84265,175View SEC Filing Icon  
12/3/2024Bing XueEVPSell875$41.00$35,875.00128,986View SEC Filing Icon  
12/3/2024Lucas S ChangDirectorSell12,497$41.46$518,125.6225,204View SEC Filing Icon  
10/24/2024Wenjun LiCOOSell2,183$35.49$77,474.6761,331View SEC Filing Icon  
8/23/2024Lucas S ChangDirectorSell3,377$38.06$128,528.6233,245View SEC Filing Icon  
8/12/2024Yifan LiangCFOSell10,000$35.60$356,000.00296,294View SEC Filing Icon  
4/22/2024Bing XueEVPSell1,956$19.57$38,278.92130,082View SEC Filing Icon  
3/20/2024Bing XueEVPSell4,401$20.56$90,484.56132,038View SEC Filing Icon  
3/12/2024Yifan LiangCFOSell20,000$23.31$466,200.00293,296View SEC Filing Icon  
2/14/2024Bing XueEVPSell14,292$22.77$325,428.84131,291View SEC Filing Icon  
1/29/2024Mike F ChangChairmanSell30,000$26.91$807,300.004,500,286View SEC Filing Icon  
1/19/2024Michael L PfeifferDirectorSell2,673$27.34$73,079.8261,157View SEC Filing Icon  
1/16/2024Bing XueEVPSell1,341$26.16$35,080.56145,583View SEC Filing Icon  
12/28/2023Mike F ChangChairmanSell30,000$26.53$795,900.004,337,591View SEC Filing Icon  
10/26/2023Mike F ChangChairmanSell30,000$25.03$750,900.004,337,591View SEC Filing Icon  
9/26/2023Mike F ChangChairmanSell30,000$28.64$859,200.004,337,591View SEC Filing Icon  
9/1/2023Mike F ChangChairmanSell30,000$31.01$930,300.004,387,591View SEC Filing Icon  
7/13/2023Bing XueEVPSell2,213$32.18$71,214.3466,369View SEC Filing Icon  
6/13/2023Bing XueEVPSell3,983$29.67$118,175.6168,582View SEC Filing Icon  
5/12/2023Bing XueEVPSell3,226$23.96$77,294.9672,565View SEC Filing Icon  
4/13/2023Bing XueEVPSell3,983$25.30$100,769.9075,129View SEC Filing Icon  
3/16/2023Bing XueEVPSell645$25.07$16,170.1579,112View SEC Filing Icon  
1/9/2023Mike F ChangCEOSell56,400$29.96$1,689,744.004,352,210View SEC Filing Icon  
1/9/2023Yifan LiangCFOSell6,600$30.00$198,000.00190,090View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Alpha and Omega Semiconductor (NASDAQ:AOSL)

78.97% of Alpha and Omega Semiconductor stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at AOSL by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Alpha and Omega Semiconductor Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/18/2025Acuitas Investments LLC240,920$6.74M4.3%+38.6%0.801%Search for SEC Filing on Google Icon
11/17/2025Oberweis Asset Management Inc.271,100$7.58M0.3%+11.0%0.902%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC81,513$2.28M0.0%+31.5%0.271%Search for SEC Filing on Google Icon
11/17/2025Northwestern Mutual Wealth Management Co.2,205$62K0.0%N/A0.007%Search for SEC Filing on Google Icon
11/17/2025Numerai GP LLC89,695$2.51M0.4%+37.6%0.298%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC637,876$17.84M0.0%+57.5%2.122%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.11,727$0.33M0.0%-14.7%0.039%Search for SEC Filing on Google Icon
11/17/2025Jain Global LLC10,800$0.30M0.0%N/A0.036%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE179,297$5.01M0.0%-26.1%0.596%Search for SEC Filing on Google Icon
11/17/2025Algert Global LLC63,319$1.77M0.0%+64.3%0.211%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.47,104$1.32M0.0%-5.6%0.157%Search for SEC Filing on Google Icon
11/14/2025Creative Planning11,993$0.34M0.0%+24.2%0.040%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.30,612$0.86M0.0%+38.2%0.102%Search for SEC Filing on Google Icon
11/14/2025Brooklyn Investment Group10,676$0.30M0.0%-28.8%0.036%Search for SEC Filing on Google Icon
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC38,128$1.07M0.0%-40.7%0.127%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP162,320$4.54M0.0%-17.6%0.540%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC72,983$2.04M0.0%+189.8%0.243%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC22,525$0.63M0.0%+7.7%0.075%Search for SEC Filing on Google Icon
11/14/2025iSAM Funds UK Ltd3,261$91K0.0%N/A0.011%Search for SEC Filing on Google Icon
11/14/2025Wellington Management Group LLP864,965$24.18M0.0%+15.0%2.877%Search for SEC Filing on Google Icon
11/13/2025Boston Partners786,630$21.99M0.0%-29.1%2.618%Search for SEC Filing on Google Icon
11/13/2025Invesco Ltd.318,633$8.91M0.0%-2.9%1.061%Search for SEC Filing on Google Icon
11/13/2025Sei Investments Co.103,072$2.88M0.0%-0.6%0.343%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG66,867$1.87M0.0%+204.8%0.223%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets6,123$0.17M0.0%+146.1%0.020%Search for SEC Filing on Google Icon
11/13/2025Franklin Resources Inc.19,228$0.54M0.0%+44.3%0.064%Search for SEC Filing on Google Icon
11/13/2025FourThought Financial Partners LLC7,679$0.22M0.0%N/A0.026%Search for SEC Filing on Google Icon
11/13/2025WINTON GROUP Ltd47,351$1.32M0.0%-4.6%0.158%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.190,221$5.32M0.0%-9.1%0.633%Search for SEC Filing on Google Icon
11/12/2025Barclays PLC82,597$2.31M0.0%-9.5%0.275%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP1,687,666$47.19M0.0%-1.9%5.618%Search for SEC Filing on Google Icon
11/12/2025First Eagle Investment Management LLC326,608$9.13M0.0%-0.8%1.087%Search for SEC Filing on Google Icon
11/12/2025Royce & Associates LP427,353$11.95M0.1%-0.8%1.422%Search for SEC Filing on Google Icon
11/12/2025Quantbot Technologies LP11,234$0.31M0.0%+226.1%0.037%Search for SEC Filing on Google Icon
11/12/2025Intech Investment Management LLC12,953$0.36M0.0%-16.4%0.043%Search for SEC Filing on Google Icon
11/10/2025Counterpoint Mutual Funds LLC12,494$0.35M0.0%N/A0.042%Search for SEC Filing on Google Icon
11/7/2025GSA Capital Partners LLP36,181$1.01M0.1%N/A0.120%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.2,453,975$68.61M0.0%+1.4%8.168%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.158,844$4.44M0.0%+72.4%0.529%Search for SEC Filing on Google Icon
11/6/2025Public Sector Pension Investment Board96,362$2.69M0.0%+15.8%0.321%Search for SEC Filing on Google Icon
11/6/2025Illinois Municipal Retirement Fund12,854$0.36M0.0%+16.9%0.043%Search for SEC Filing on Google Icon
11/6/2025Versor Investments LP12,054$0.34M0.1%+43.5%0.040%Search for SEC Filing on Google Icon
11/5/2025Envestnet Asset Management Inc.7,399$0.21M0.0%N/A0.025%Search for SEC Filing on Google Icon
11/5/2025Hantz Financial Services Inc.1,036$29K0.0%+634.8%0.003%Search for SEC Filing on Google Icon
11/4/2025Principal Financial Group Inc.119,323$3.34M0.0%-1.4%0.397%Search for SEC Filing on Google Icon
11/3/2025Arizona State Retirement System7,459$0.21M0.0%N/A0.025%Search for SEC Filing on Google Icon
11/3/2025Acuitas Investments LLC240,920$6.74M2.9%+38.6%0.802%Search for SEC Filing on Google Icon
11/3/2025Gagnon Securities LLC215,349$6.02M1.2%-0.3%0.717%Search for SEC Filing on Google Icon
10/31/2025First Citizens Bank & Trust Co.9,263$0.26M0.0%N/A0.031%Search for SEC Filing on Google Icon
10/30/2025Envestnet Portfolio Solutions Inc.8,902$0.25M0.0%N/A0.030%Search for SEC Filing on Google Icon
10/27/2025Robeco Schweiz AG785,264$21.96M0.5%+0.4%2.614%Search for SEC Filing on Google Icon
10/24/2025New York State Teachers Retirement System6,437$0.18M0.0%-17.2%0.021%Search for SEC Filing on Google Icon
10/24/2025Redwood Wealth Management Group LLC19,741$0.55M0.2%+13.8%0.066%Search for SEC Filing on Google Icon
10/24/2025State of Alaska Department of Revenue13,698$0.38M0.0%-5.7%0.046%Search for SEC Filing on Google Icon
10/23/2025Peregrine Capital Management LLC222,074$6.21M0.2%-0.3%0.739%Search for SEC Filing on Google Icon
10/23/2025SG Americas Securities LLC127,276$3.56M0.0%N/A0.424%Search for SEC Filing on Google Icon
10/15/2025CWM LLC2,314$65K0.0%+20.0%0.008%Search for SEC Filing on Google Icon
10/14/2025Yousif Capital Management LLC7,501$0.21M0.0%-15.8%0.025%Search for SEC Filing on Google Icon
10/9/2025Voya Investment Management LLC24,301$0.68M0.0%N/A0.081%Search for SEC Filing on Google Icon
10/2/2025GAMMA Investing LLC4,109$0.12M0.0%+21.4%0.014%Search for SEC Filing on Google Icon
8/27/2025Squarepoint Ops LLC20,909$0.54M0.0%-3.8%0.071%Search for SEC Filing on Google Icon
8/16/2025Public Sector Pension Investment Board83,192$2.14M0.0%+8.8%0.283%Search for SEC Filing on Google Icon
8/15/2025Tower Research Capital LLC TRC 4,957$0.13M0.0%+574.4%0.017%Search for SEC Filing on Google Icon
8/15/2025Engineers Gate Manager LP8,449$0.22M0.0%N/A0.029%Search for SEC Filing on Google Icon
8/15/2025BNP Paribas Financial Markets2,488$64K0.0%-66.1%0.008%Search for SEC Filing on Google Icon
8/15/2025Bridgeway Capital Management LLC25,185$0.65M0.0%+106.9%0.086%Search for SEC Filing on Google Icon
8/15/2025Ameriprise Financial Inc.49,914$1.28M0.0%-3.4%0.170%Search for SEC Filing on Google Icon
8/14/2025PDT Partners LLC21,300$0.55M0.0%N/A0.072%Search for SEC Filing on Google Icon
8/14/2025Canada Pension Plan Investment Board10,800$0.28M0.0%+260.0%0.037%Search for SEC Filing on Google Icon
8/14/2025Quantinno Capital Management LP18,207$0.47M0.0%N/A0.062%Search for SEC Filing on Google Icon
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.13,751$0.35M0.0%-2.9%0.047%Search for SEC Filing on Google Icon
8/14/2025The Manufacturers Life Insurance Company 1,411,400$36.22M0.0%+12.7%4.798%Search for SEC Filing on Google Icon
8/14/2025Sei Investments Co.103,744$2.66M0.0%+20.5%0.353%Search for SEC Filing on Google Icon
8/14/2025WINTON GROUP Ltd49,619$1.27M0.1%+21.1%0.169%Search for SEC Filing on Google Icon
8/13/2025First Trust Advisors LP29,397$0.75M0.0%+75.4%0.100%Search for SEC Filing on Google Icon
8/13/2025Invesco Ltd.328,170$8.42M0.0%-56.8%1.115%Search for SEC Filing on Google Icon
8/13/2025Quantbot Technologies LP3,445$88K0.0%-54.3%0.012%Search for SEC Filing on Google Icon
8/13/2025Russell Investments Group Ltd.209,247$5.37M0.0%+19.8%0.711%Search for SEC Filing on Google Icon
8/12/2025Boston Partners1,109,377$28.47M0.0%+86.4%3.771%Search for SEC Filing on Google Icon
8/12/2025American Century Companies Inc.57,852$1.48M0.0%+10.0%0.197%Search for SEC Filing on Google Icon
8/12/2025Rhumbline Advisers73,056$1.88M0.0%+5.2%0.248%Search for SEC Filing on Google Icon
8/12/2025Journey Strategic Wealth LLC9,531$0.25M0.0%N/A0.032%Search for SEC Filing on Google Icon
8/12/2025Legal & General Group Plc65,399$1.68M0.0%+3.9%0.222%Search for SEC Filing on Google Icon
8/12/2025JPMorgan Chase & Co.92,121$2.36M0.0%+551.6%0.313%Search for SEC Filing on Google Icon
8/8/2025Intech Investment Management LLC15,497$0.40M0.0%+25.9%0.053%Search for SEC Filing on Google Icon
8/8/2025Creative Planning9,658$0.25M0.0%N/A0.033%Search for SEC Filing on Google Icon
8/8/2025Geode Capital Management LLC601,672$15.44M0.0%+0.5%2.045%Search for SEC Filing on Google Icon
8/8/2025PNC Financial Services Group Inc.1,533$39K0.0%+49.0%0.005%Search for SEC Filing on Google Icon
8/7/2025Boston Partners769,687$19.75M0.0%+29.3%2.616%Search for SEC Filing on Google Icon
8/7/2025Robeco Schweiz AG782,503$20.08M0.5%+0.1%2.660%Search for SEC Filing on Google Icon
8/7/2025Connor Clark & Lunn Investment Management Ltd.80,351$2.06M0.0%+74.0%0.273%Search for SEC Filing on Google Icon
8/7/2025Los Angeles Capital Management LLC17,013$0.44M0.0%N/A0.058%Search for SEC Filing on Google Icon
8/6/2025First Eagle Investment Management LLC329,208$8.45M0.0%+7.3%1.119%Search for SEC Filing on Google Icon
8/5/2025Redwood Wealth Management Group LLC17,351$0.45M0.2%+7.9%0.059%Search for SEC Filing on Google Icon
8/5/2025Versor Investments LP8,400$0.22M0.0%N/A0.029%Search for SEC Filing on Google Icon
8/1/2025Peregrine Capital Management LLC222,739$5.72M0.2%+27.3%0.757%Search for SEC Filing on Google Icon
7/31/2025Nisa Investment Advisors LLC1,012$26K0.0%+137.6%0.003%Search for SEC Filing on Google Icon
7/31/2025Acuitas Investments LLC173,820$4.46M3.5%+18.8%0.591%Search for SEC Filing on Google Icon
7/25/2025CWM LLC1,928$49K0.0%+403.4%0.007%Search for SEC Filing on Google Icon
7/23/2025Gagnon Securities LLC215,980$5.54M1.1%+0.6%0.734%Search for SEC Filing on Google Icon
Data available starting January 2016

See Full Table
Alpha and Omega Semiconductor logo
Alpha and Omega Semiconductor Limited designs, develops, and supplies power semiconductor products for computing, consumer electronics, communication, and industrial applications in Hong Kong, China, South Korea, the United States, and internationally. It offers power discrete products, including metal-oxide-semiconductor field-effect transistors (MOSFET), SRFETs, XSFET, electrostatic discharge, protected MOSFETs, high and mid-voltage MOSFETs, and insulated gate bipolar transistors for use in smart phone chargers, battery packs, notebooks, desktop and servers, data centers, base stations, graphics card, game boxes, TVs, AC adapters, power supplies, motor control, power tools, E-vehicles, white goods and industrial motor drives, UPS systems, solar inverters, and industrial welding. The company also provides power ICs that deliver power, as well as control and regulate the power management variables, such as the flow of current and level of voltage. Its power ICs are used in flat panel displays, TVs, notebooks, graphic cards, servers, DVD/Blu-Ray players, set-top boxes, and networking equipment. In addition, the company offers transient voltage suppressors, analog switch, and electromagnetic interference filter for notebooks, desktop PCs, tablets, flat panel displays, TVs, smart phones, and portable electronic devices; and 650V and 1200V SiC MOSFET. Alpha and Omega Semiconductor Limited was incorporated in 2000 and is headquartered in Sunnyvale, California.
Read More on Alpha and Omega Semiconductor

Today's Range

Now: $21.48
Low: $21.21
High: $21.75

50 Day Range

MA: $24.90
Low: $17.47
High: $31.95

52 Week Range

Now: $21.48
Low: $15.90
High: $53.29

Volume

251,682 shs

Average Volume

475,274 shs

Market Capitalization

$645.69 million

P/E Ratio

N/A

Dividend Yield

N/A

Beta

1.93

Who are the company insiders with the largest holdings of Alpha and Omega Semiconductor?

Alpha and Omega Semiconductor's top insider investors include:
  1. Mike F Chang (Chairman)
  2. Yifan Liang (CFO)
  3. Bing Xue (EVP)
  4. Wenjun Li (COO)
  5. Michael L Pfeiffer (Director)
  6. Lucas S Chang (Director)
  7. Claudia Chen (Director)
Learn More about top insider investors at Alpha and Omega Semiconductor.

Who are the major institutional investors of Alpha and Omega Semiconductor?

Alpha and Omega Semiconductor's top institutional investors include:
  1. Vanguard Group Inc. — 8.17%
  2. Dimensional Fund Advisors LP — 5.62%
  3. Wellington Management Group LLP — 2.88%
  4. Boston Partners — 2.62%
  5. Robeco Schweiz AG — 2.61%
  6. Millennium Management LLC — 2.12%
Learn More about top institutional investors of Alpha and Omega Semiconductor stock.

Which institutional investors are selling Alpha and Omega Semiconductor stock?

In the previous quarter, AOSL stock was sold by these institutional investors:
  1. Boston Partners
  2. Bank of America Corp DE
  3. Two Sigma Investments LP
  4. Dimensional Fund Advisors LP
  5. UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
  6. Russell Investments Group Ltd.
  7. Susquehanna International Group LLP
  8. Invesco Ltd.
During the previous year, company insiders that have sold Alpha and Omega Semiconductor company stock include:
  1. Mike F Chang (Chairman)
  2. Yifan Liang (CFO)
  3. Bing Xue (EVP)
Learn More investors selling Alpha and Omega Semiconductor stock.

Which institutional investors are buying Alpha and Omega Semiconductor stock?

In the last quarter, AOSL stock was bought by institutional investors including:
  1. Millennium Management LLC
  2. SG Americas Securities LLC
  3. Wellington Management Group LLP
  4. Acuitas Investments LLC
  5. Acuitas Investments LLC
  6. JPMorgan Chase & Co.
  7. Bridgeway Capital Management LLC
  8. UBS Group AG