Alpha and Omega Semiconductor Limited (AOSL)
SEMICONDUCTORS & RELATED DEVICES
Alpha and Omega Semiconductor Limited (AOSL) is listed on Nasdaq, where it has traded since April 29, 2010.
- Listed On
- Nasdaq
- Listed Since
- April 29, 2010
- Employees
- 2,519
- Market Cap
- $845M
About Alpha and Omega Semiconductor Limited
Alpha & Omega Semiconductor Ltd designs, develops and supplies a portfolio of power semiconductors targeting various applications, including personal computers, flat-panel TVs, LED lighting, smartphones, battery packs, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment. It generates revenue mainly from the sale of power semiconductors, consisting of power discretes and power ICs with a presence in Hong Kong, China, South Korea, the United States and Other countries. The company is operates in one operating segment: the design, development and supply of power semiconductor products for computing, consumer electronics, communication and industrial applications.
Institutional ownership
In 13F filings for the quarter ended June 30, 2026, 208 institutions reported holding AOSL, with 22.8 million shares worth $1.1 billion in aggregate. The largest reported holder was BlackRock, with 4.3 million shares worth $201.5 million. Of the 5 largest holders listed below, 2 added shares and 3 reduced their positions during the quarter.
| Institution | Shares | Value | Quarter change |
|---|---|---|---|
| BlackRock | 4,256,528 | $201M | Added 9.01% |
| Vanguard | 2,378,886 | $113M | Reduced 1.94% |
| State Street | 2,347,448 | $111M | Added 67.49% |
| Manufacturers Life Insurance Company, the | 1,375,083 | $65M | Reduced 12.66% |
| Dimensional Fund Advisors | 1,335,089 | $63M | Reduced 14.63% |
Form 13F is a quarterly report that institutional investment managers with at least $100 million in qualifying securities file with the SEC. It lists long positions as of the last day of the quarter and is due within 45 days of quarter end, so these holdings describe that date rather than today.
Frequently asked questions
What is AOSL?
Alpha and Omega Semiconductor Limited (AOSL) is listed on Nasdaq, where it has traded since April 29, 2010.
Who are the largest institutional holders of AOSL?
In 13F filings for the quarter ended June 30, 2026, the largest reported holders of AOSL were BlackRock, Vanguard and State Street.
How many institutions own AOSL?
208 institutions reported a position in AOSL for the quarter ended June 30, 2026, worth $1.1 billion in total.
Did institutions buy or sell AOSL last quarter?
Of the 5 largest reported holders, 2 added shares and 3 reduced their positions during the quarter. Every reported holder and its change is on the SentiSense ownership page for AOSL.
Every reported institutional holder, plus insider and congressional trades in AOSL, on SentiSense.