Alpha and Omega Semiconductor Limited (AOSL)

Stephen C. Chang has been chief executive since March 2023 and a director since November 2022; he was president from January 2021 and before that ran product lines and marketing inside the company. The founder, Mike F. Chang, was chief executive until March 1, 2023 and executive chairman until March 3, 2025, and now chairs the board as executive vice president of strategic initiatives; before founding the company he was an executive vice president at Siliconix, a Vishay subsidiary. Yifan Liang has been chief financial officer since August 2014, after joining as corporate controller in August 2004 from PwC. Wenjun Li, chief operating officer since August 2021, has been with the company since 2012, and Bing Xue, who runs worldwide sales and business development, since 2003. 123456

Of the nine directors named in the latest proxy statement, all but the chief executive and the chairman were independent. Michael J. Salameh, who co-founded PLX Technology and ran it until 2008, is the lead independent director; King Owyang, a director since April 2013, was once president and chief executive of Siliconix; Claudia Chen chairs the audit committee. A newer director, Joshua Chien, first filed on the insider record in July 2026 and signed the annual report as a director in August 2026. Mike F. Chang and Yifan Liang have filed on that record since 2011. 7891011121314

At the end of June 2026 AOS had 2,519 employees: 817 in the United States, 1,472 in China and 230 elsewhere. None is represented by a collective bargaining agreement, and more than half of its managerial positions are filled by promoting existing employees. Its research and development teams work in Sunnyvale, Oregon, Texas, Arizona, Korea, Taiwan, the United Kingdom, Serbia, India and China. 151617