Company Description
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.
The company offers power discrete products, including industry standard trench metal-oxide-semiconductor field-effect transistors (MOSFETs), Shielded-Gate low- and mid-voltage MOSFETs, SuperJunction high-voltage MOSFETs, and trench-stop insulated gate bipolar transistors, as well as application-specific MOSFETs for smartphone battery management, dual MOSFETs for CPU power conversion, and high-power density MOSFETs for IBC power modules in AI data centers.
It also provides power IC products, total power solutions for Intel panther lake and wildcat lake platforms, and the SmartClamp family of protected DrMOS for AI servers, data centers, and high-end graphics cards, as well as silicon carbide, IPM, HV gate drivers, and digital power products.
Alpha and Omega Semiconductor Limited was incorporated in 2000 and is headquartered in Sunnyvale, California.
| Country | United States |
| Founded | 2000 |
| IPO Date | Apr 29, 2010 |
| Industry | Semiconductors |
| Sector | Technology |
| Employees | 2,519 |
| CEO | Stephen Chang |
Contact Details
Address: 475 Oakmead Parkway Sunnyvale, California 94085 United States | |
| Phone | 408 830 9742 |
| Website | aosmd.com |
Stock Details
| Ticker Symbol | AOSL |
| Exchange | NASDAQ |
| Stock Type | Common Stock |
| Fiscal Year | July - June |
| Reporting Currency | USD |
| CIK Code | 0001387467 |
| CUSIP Number | G6331P104 |
| ISIN Number | BMG6331P1041 |
| SIC Code | 3674 |
Key Executives
| Name | Position |
|---|---|
| Stephen Chunping Chang | Chief Executive Officer and Director |
| Dr. Mike Fushing Chang Ph.D. | Executive Vice President of Strategic Initiative and Chairman |
| Yifan Liang | Chief Financial Officer and Corporate Secretary |
| Dr. Wenjun Li Ph.D. | Chief Operating Officer |
| Dr. Bing Xue Ph.D. | Executive Vice President of Worldwide Sales and Business Development |
| Steve Sun | Vice President of Human Resources |
Latest SEC Filings
| Date | Type | Title |
|---|---|---|
| Aug 27, 2026 | S-8 | Securities to be offered to employees in employee benefit plans |
| Aug 27, 2026 | 10-K | Annual Report |
| Aug 12, 2026 | 8-K | Current Report |
| Aug 10, 2026 | SCHEDULE 13G/A | Filing |
| Aug 7, 2026 | SCHEDULE 13G | Filing |
| Jul 16, 2026 | 144 | Filing |
| Jul 14, 2026 | SCHEDULE 13G/A | Filing |
| Jul 10, 2026 | 8-K | Current Report |
| Jun 16, 2026 | 144 | Filing |
| May 22, 2026 | 144 | Filing |