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AOSL Insider Trading

Insider Ownership Percentage: 16.70%
Insider Buying (Last 12 Months): $640,813.00
Insider Selling (Last 12 Months): $2,012,205.81

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.

Skip ChartChart Data in Insider Trading History Table

Alpha and Omega Semiconductor Share Price & Price History

Current Price: $43.75
Price Change: ▲ Price Increase of +1.57 (3.72%)
As of 05/5/2026 04:00 PM ET

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

Skip Chart and Table DataPrice Data in Insider Trading History Table
Days: 30 | 90 | 365

Alpha and Omega Semiconductor Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
4/17/2026Stephen Chunping ChangCEOSell14,884$34.47$513,051.48635,901View SEC Filing Icon  
4/17/2026Yifan LiangCFOSell8,625$35.00$301,875.00270,003View SEC Filing Icon  
4/16/2026Bing XueEVPSell1,832$31.21$57,176.72132,617View SEC Filing Icon  
4/14/2026Stephen Chunping ChangCEOSell5,594$31.90$178,448.60650,785View SEC Filing Icon  
4/14/2026Yifan LiangCFOSell26,517$30.57$810,624.69278,628View SEC Filing Icon  
3/16/2026Bing XueEVPSell2,408$21.92$52,783.36113,631View SEC Filing Icon  
3/9/2026Mike F ChangDirectorBuy33,727$19.00$640,813.004,369,574View SEC Filing Icon  
1/15/2026Bing XueEVPSell737$22.43$16,530.91118,499View SEC Filing Icon  
12/15/2025Bing XueEVPSell1,845$20.56$37,933.20127,863View SEC Filing Icon  
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  
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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
5/5/2026Bank of New York Mellon Corp139,534$3.09M0.0%-4.0%0.469%Search for SEC Filing on Google Icon
5/4/2026Principal Financial Group Inc.120,075$2.66M0.0%+1.0%0.403%Search for SEC Filing on Google Icon
4/27/2026Counterpoint Mutual Funds LLC39,579$0.88M0.1%N/A0.133%Search for SEC Filing on Google Icon
4/27/2026New York State Teachers Retirement System4,694$0.10M0.0%-15.1%0.016%Search for SEC Filing on Google Icon
4/27/2026Y Intercept Hong Kong Ltd35,370$0.78M0.0%N/A0.119%Search for SEC Filing on Google Icon
4/24/2026Redwood Wealth Management Group LLC11,337$0.25M0.1%-19.5%0.038%Search for SEC Filing on Google Icon
4/24/2026Peregrine Capital Management LLC161,821$3.59M0.1%-8.8%0.544%Search for SEC Filing on Google Icon
4/21/2026Louisiana State Employees Retirement System11,000$0.24M0.0%N/A0.037%Search for SEC Filing on Google Icon
4/16/2026SG Americas Securities LLC72,458$1.61M0.0%-7.8%0.243%Search for SEC Filing on Google Icon
2/19/2026Invesco Ltd.381,767$7.56M0.0%+19.8%1.283%Search for SEC Filing on Google Icon
2/18/2026Summit Global Investments11,238$0.22M0.0%N/A0.038%Search for SEC Filing on Google Icon
2/18/2026Empowered Funds LLC109,541$2.17M0.0%+106.7%0.368%Search for SEC Filing on Google Icon
2/18/2026XTX Topco Ltd37,263$0.74M0.0%N/A0.125%Search for SEC Filing on Google Icon
2/18/2026Uniplan Investment Counsel Inc.152,820$3.03M0.9%-4.8%0.514%Search for SEC Filing on Google Icon
2/18/2026Susquehanna Portfolio Strategies LLC66,647$1.32M0.0%-24.9%0.224%Search for SEC Filing on Google Icon
2/18/2026Tudor Investment Corp ET AL15,401$0.31M0.0%+41.1%0.052%Search for SEC Filing on Google Icon
2/18/2026Numerai GP LLC120,155$2.38M0.3%+34.0%0.404%Search for SEC Filing on Google Icon
2/18/2026Millennium Management LLC59,983$1.19M0.0%-90.6%0.202%Search for SEC Filing on Google Icon
2/18/2026Engineers Gate Manager LP45,654$0.90M0.0%+64.9%0.153%Search for SEC Filing on Google Icon
2/18/2026Bridgeway Capital Management LLC129,541$2.57M0.1%+77.5%0.435%Search for SEC Filing on Google Icon
2/17/2026AQR Capital Management LLC82,032$1.63M0.0%+36.5%0.276%Search for SEC Filing on Google Icon
2/17/2026Trexquant Investment LP151,630$3M0.0%+743.8%0.509%Search for SEC Filing on Google Icon
2/17/2026Price T Rowe Associates Inc. MD27,858$0.55M0.0%+4.6%0.094%Search for SEC Filing on Google Icon
2/17/2026Arosa Capital Management LP30,000$0.59M0.1%N/A0.101%Search for SEC Filing on Google Icon
2/17/2026California State Teachers Retirement System25,763$0.51M0.0%+12.1%0.087%Search for SEC Filing on Google Icon
2/17/2026Russell Investments Group Ltd.205,775$4.08M0.0%+8.2%0.691%Search for SEC Filing on Google Icon
2/17/2026State of Wisconsin Investment Board39,768$0.79M0.0%-30.1%0.134%Search for SEC Filing on Google Icon
2/17/2026Royal Bank of Canada8,938$0.18M0.0%+9.2%0.030%Search for SEC Filing on Google Icon
2/16/2026Verition Fund Management LLC75,837$1.50M0.0%-7.0%0.255%Search for SEC Filing on Google Icon
2/16/2026Barclays PLC42,576$0.84M0.0%-48.5%0.143%Search for SEC Filing on Google Icon
2/13/2026The Manufacturers Life Insurance Company 1,628,634$32.26M0.0%+4.7%5.473%Search for SEC Filing on Google Icon
2/13/2026Jacobs Levy Equity Management Inc.124,751$2.47M0.0%N/A0.419%Search for SEC Filing on Google Icon
2/13/2026Public Sector Pension Investment Board86,383$1.71M0.0%-10.4%0.290%Search for SEC Filing on Google Icon
2/13/2026Charles Schwab Investment Management Inc.393,773$7.80M0.0%+14.3%1.323%Search for SEC Filing on Google Icon
2/13/2026State Street Corp1,474,175$29.20M0.0%+21.6%4.954%Search for SEC Filing on Google Icon
2/13/2026Boston Partners689,143$13.66M0.0%-12.4%2.316%Search for SEC Filing on Google Icon
2/13/2026Dynamic Technology Lab Private Ltd12,515$0.25M0.1%N/A0.042%Search for SEC Filing on Google Icon
2/13/2026Wells Fargo & Company MN29,571$0.59M0.0%+43.0%0.099%Search for SEC Filing on Google Icon
2/12/2026Renaissance Technologies LLC10,500$0.21M0.0%N/A0.035%Search for SEC Filing on Google Icon
2/12/2026Dimensional Fund Advisors LP1,584,028$31.38M0.0%-6.1%5.323%Search for SEC Filing on Google Icon
2/12/2026Swiss National Bank50,400$1M0.0%+2.6%0.169%Search for SEC Filing on Google Icon
2/11/2026Empowered Funds LLC109,541$2.17M0.0%+106.7%0.368%Search for SEC Filing on Google Icon
2/11/2026Deutsche Bank AG47,059$0.93M0.0%+1.8%0.158%Search for SEC Filing on Google Icon
2/11/2026Franklin Resources Inc.20,281$0.40M0.0%+5.5%0.068%Search for SEC Filing on Google Icon
2/11/2026JPMorgan Chase & Co.237,563$4.71M0.0%+49.6%0.798%Search for SEC Filing on Google Icon
2/11/2026WINTON GROUP Ltd137,265$2.72M0.1%+189.9%0.461%Search for SEC Filing on Google Icon
2/10/2026Goldman Sachs Group Inc.447,020$8.86M0.0%+20.7%1.502%Search for SEC Filing on Google Icon
2/10/2026AXQ Capital LP20,511$0.41M0.1%N/A0.069%Search for SEC Filing on Google Icon
2/10/2026Intech Investment Management LLC14,476$0.29M0.0%+11.8%0.049%Search for SEC Filing on Google Icon
2/9/2026Geode Capital Management LLC611,089$12.11M0.0%+0.6%2.053%Search for SEC Filing on Google Icon
2/9/2026Royce & Associates LP474,015$9.39M0.1%+10.9%1.593%Search for SEC Filing on Google Icon
1/30/2026New York State Teachers Retirement System5,528$0.11M0.0%-14.1%0.018%Search for SEC Filing on Google Icon
1/29/2026Weber Capital Management LLC ADV547,308$10.84M10.2%N/A1.821%Search for SEC Filing on Google Icon
1/29/2026UBS Group AG217,121$4.30M0.0%+224.7%0.722%Search for SEC Filing on Google Icon
1/29/2026Teachers Retirement System of The State of Kentucky6,048$0.12M0.0%-11.4%0.020%Search for SEC Filing on Google Icon
1/29/2026Vanguard Group Inc.2,424,320$48.03M0.0%-1.2%8.065%Search for SEC Filing on Google Icon
1/28/2026Peregrine Capital Management LLC177,422$3.52M0.1%-20.1%0.590%Search for SEC Filing on Google Icon
1/27/2026Zurcher Kantonalbank Zurich Cantonalbank7,926$0.16M0.0%+79.9%0.026%Search for SEC Filing on Google Icon
1/22/2026Massachusetts Financial Services Co. MA28,439$0.56M0.0%N/A0.095%Search for SEC Filing on Google Icon
1/9/2026SG Americas Securities LLC78,548$1.56M0.0%-38.3%0.261%Search for SEC Filing on Google Icon
1/5/2026GAMMA Investing LLC2,501$50K0.0%-39.1%0.008%Search for SEC Filing on Google Icon
1/1/2026JPMorgan Chase & Co.158,844$4.44M0.0%+72.4%0.528%Search for SEC Filing on Google Icon
1/1/2026Tudor Investment Corp ET AL10,913$0.31M0.0%-75.5%0.036%Search for SEC Filing on Google Icon
12/9/2025Tudor Investment Corp ET AL10,913$0.31M0.0%-75.5%0.036%Search for SEC Filing on Google Icon
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
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: $43.75
Low: $41.41
High: $45.42

50 Day Range

MA: $26.71
Low: $19.85
High: $44.45

52 Week Range

Now: $43.75
Low: $17.01
High: $45.97

Volume

1,191,550 shs

Average Volume

1,061,758 shs

Market Capitalization

$1.30 billion

P/E Ratio

N/A

Dividend Yield

N/A

Beta

2.58

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. Mike F Chang (Director)
  3. Mike F Chang (CEO)
  4. Stephen Chunping Chang (CEO)
  5. Yifan Liang (CFO)
  6. Bing Xue (EVP)
  7. Daniel Kuang Ming Chang (VP)
  8. Wenjun Li (COO)
  9. Michael L Pfeiffer (Director)
  10. Michael J Salameh (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. Peregrine Capital Management LLC — 0.54%
  2. Bank of New York Mellon Corp — 0.47%
  3. Principal Financial Group Inc. — 0.40%
  4. SG Americas Securities LLC — 0.24%
  5. Counterpoint Mutual Funds LLC — 0.13%
  6. Y Intercept Hong Kong Ltd — 0.12%
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. Peregrine Capital Management LLC
  2. SG Americas Securities LLC
  3. Bank of New York Mellon Corp
  4. Redwood Wealth Management Group LLC
  5. New York State Teachers Retirement System
During the previous year, company insiders that have sold Alpha and Omega Semiconductor company stock include:
  1. Stephen Chunping Chang (CEO)
  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. Counterpoint Mutual Funds LLC
  2. Y Intercept Hong Kong Ltd
  3. Louisiana State Employees Retirement System
  4. Principal Financial Group Inc.

Alpha and Omega Semiconductor Active Insiders

Stephen Chunping Chang
CEO
2 recent trades
Wenjun Li (Age 57)
COO
Yifan Liang (Age 61)
CFO
2 recent trades
Mike F Chang (Age 81)
Chairman
1 recent trades
Yueh-Se Ho (Age 73)
Director
Michael L Pfeiffer
Director
Claudia Chen
Claudia Chen
Director
Lucas S Chang
Lucas S Chang
Director
Bing Xue
Bing Xue (Age 61)
EVP
4 recent trades