Alpha & Omega Semiconductor AOSL

Stephen C. Chang has served as our Chief Executive Officer since March 2023 and as a director since November 2022. Mr. Chang previously served as the Company's President from January 2021 to February 2023. Prior to that, he served in various management positions in our company including Executive Vice President of Product Line Management, Senior VP of Marketing, VP of the MOSFET Product Line, and Senior Director of Product Marketing. Mr. Chang has over 20 years of industry experience and leads our Product Line Marketing with various managerial responsibilities, including new product development, product lifecycle management, business development, and business strategy. He received his B.A. in Electrical Engineering from University of California, Berkeley and M.B.A. from Santa Clara University.

Yifan Liang has been serving as our Chief Financial Officer since August 2014 and Corporate Secretary since November 2013. Mr. Liang was previously our Interim Chief Financial Officer from November 2013 to August 2014, our chief accounting officer from October 2006 to November 2013, and our Assistant Corporate Secretary from November 2009 to November 2013. Mr. Liang joined our company in August 2004 as our Corporate Controller. Prior to joining us, Mr. Liang held various positions at PricewaterhouseCoopers LLP, or PwC, from 1995 to 2004, including Audit Manager in PwC's San Jose office. Mr. Liang received his B.S. in management information system from the People's University of China and M.A. in finance and accounting from the University of Alabama.

Bing Xue, Ph.D., has been serving as our Executive Vice President of Worldwide Sales and Business Development since January 2021. Prior to that, Dr. Xue held various managerial positions in our company since 2003, including Senior Vice President of Global Sales, Vice President of Global Sales, Vice President of Worldwide Manufacturing, and General Manager of China Operation. Prior to joining us, Dr. Xue served as the Director of Engineering in Dowslake Microsystems Corporation from 2001 to 2003. Dr. Xue received his B.S. in Physics from Xiamen University, and Ph.D. in Physical Chemistry from University of Pennsylvania.

Wenjun. Li, Ph.D., has been serving as our Chief Operating Officer since August 2021. Prior to that, Dr. Li served in various management positions in our company since 2012, including Executive Vice President of World-Wide Manufacturing, Senior Vice President of World-Wide Manufacturing, Vice President of Front-End Operation, the director of Process Integration and Senior Manager of Process Integration. Dr. Li holds a B.S. in Chemistry and a M.S. in Chemical Engineering from Taiyuan University of Technology, and a Ph.D. in Microelectronics & Solid-State Electronics from the Research Institute of Micro-Nanometer Technology at Shanghai Jiao Tong University.

Michael J. Salameh has served as a director of our company since November 2013. Mr. Salameh co-founded PLX Technology, Inc. (NASDAQ: PLXT), a semiconductor company, in May 1986 and served as its Chief Executive Officer from 1986 to 2008, leading the company from its startup stage through its growth into a publicly traded semiconductor company. Mr. Salameh also served on the Board of Directors of PLX from its inception until its acquisition by Avago Technologies (now Broadcom) in August 2014. Mr. Salameh was Chairman of the Board at the time of the acquisition. PLX was listed on the NASDAQ from 1999 until its acquisition. Since 2015, Mr. Salameh has served as a strategic advisor to Scaleflux Inc., a privately held semiconductor company, and joined its Board of Directors in April 2026. From 2010 to 2020, Mr. Salameh served as a consultant to the CEO and Board of Directors of Analogix Semiconductor, Inc., a privately held semiconductor company, where he assisted the company in strategic planning, development of the leadership team and its sale to a private equity firm in 2020. Earlier in his career, Mr. Salameh held various marketing management positions at Hewlett-Packard Company from 1980 to 1986. Mr. Salameh received a B.S. in Engineering and Applied Science from Yale University and an M.B.A. from Harvard Business School.

Claudia Chen has been a director of our company since November 2019. From December 2021 to October 2025, she served as a Vice President of Finance at Avivalinks, Inc., a privately held company building advanced connectivity solutions for next generation autonomous systems. Avivalinks was acquired in October 2025 by NXP Semiconductor. From July 2018 to April 2019, Ms. Chen served as the Head of Finance at Sonatus, Inc, a private company in the Silicon Valley focusing on the development of in-vehicle and cloud platforms. She subsequently served as an advisor to Sonatus from May 2019 to July 2020. From 2008 to 2017, Ms. Chen served as the head of finance department at Atoptech, Inc, an EDA software company. Ms. Chen held various management positions at technology companies from 1996 to 2005, including Director of Finance of Polaris Networks, Inc., Director of Finance of Transmedia Communications, Inc. (acquired by Cisco Systems, Inc.), and Director of Finance of NeoParadigm Labs, Inc. Ms. Chen holds a B.S. in Accounting from National Taiwan University, Taipei, Taiwan, and an M.S. in Taxation from the University of Illinois, Urbana.

King Owyang, Ph.D., has been a director of our company since April 2013. He was the Chief Executive Officer and Executive Director of Computime Group Limited, a Hong Kong listed company and a leading global provider of electronic control technologies from April 30, 2010 to October 1, 2020. Prior to joining Computime, Dr. Owyang held various positions at Siliconix Inc., a U.S. semiconductor company, for over 21 years, including the President and Chief Executive Officer. He was instrumental in leading Siliconix to become a highly profitable company with industry leading products. Under his leadership and management, Siliconix established itself as the world leader in power switching and management products and its sales grew to a record level in 2008. Prior to joining Siliconix, Dr. Owyang held various technical and managerial positions at General Electric Company, where he was responsible for developing many enabling semiconductor technologies. Dr. Owyang is a recognized leader in the power semiconductor industry. He has published over 20 technical papers and has been awarded more than 25 patents. In 2024, Dr. Owyang was invited to join the Advisory Board of Deutsche Bank Wealth Management Group. Dr Owyang obtained his B.S. in Physics and his Ph.D in the field of Material Science in 1968 and 1974 respectively from the Massachusetts Institute of Technology, USA.

So-Yeon Jeong has been a director of our company since November 2021. From April 2020 to May 2022, she served as the Head of Investor Relations at Magnachip Semiconductor Corporation based in Seoul, Korea, a designer and manufacturer of analog and mixed-signal semiconductor platform solutions. From 2011 to August 2020, she served as Consultant, Investor Relation for the Company. From 2007 to 2008, Ms. Jeong served as the Vice President of Investor Relations and Marketing Communications of Photon Dynamics, Inc. (acquired by Orbotech, now a KLA company), a global supplier of array test and repair equipment for LCD flat panel display manufacturers. From 2004 to 2007, Ms. Jeong served as the Head of Investor and Board Relations of Nextest Systems Corp. (acquired by Teradyne), a leading manufacturer of automatic test equipment for semiconductor IC manufacturers. Ms. Jeong received her M.B.A. from Fuqua School of Business, Duke University and B.A. from Ewha University, Seoul, Korea. She also holds the Artificial Intelligence Governance Professional (AIGP) certification from the International Association of Privacy Professionals.

Michael L. Pfeiffer has been a director of our company since January 2014. From 2008 to 2013, Mr. Pfeiffer served as a member of the board of directors of BCD Semiconductor Manufacturing Limited, a company listed on NASDAQ until it was acquired in 2013. From 2009 to 2014, Mr. Pfeiffer served as a member of the board of directors of Integrated Memory Logic, Ltd., a semiconductor company listed on the Taiwan Stock Exchange until it was acquired in 2014. From 2014 to 2016, Mr. Pfeiffer served on the board of directors of Razer, Inc., a computer peripherals company. Mr. Pfeiffer, who is a certified public accountant in California, worked for PricewaterhouseCoopers LLP for over 30 years, including 18 years as the engagement partner on the audits of the financial statements of high technology companies in the Silicon Valley. Mr. Pfeiffer received an MBA from the University of Oregon and a BA from Eckerd College in Florida. Mr. Michael Pfeiffer will not stand for re-election at the Annual Meeting, and his service as a member of our Board will end immediately after the Annual Meeting.

Hanqing (Helen) Li has been a director of our company since November 2021. Ms. Li is the Chief Executive Officer of Omnibay, Inc, an AI-native deal intelligence and relationship platform since April 2026. Prior to joining Omnibay, Ms. Li served as Managing Director and Head of China Investment Banking of Needham & Company, LLC, a full-service investment banking and asset management firm, from May 2011 to March 2026. Prior to that, Ms. Li was the Strategic Sales Manager at TDK/Invensense, a leading provider of MEMS-based motion sensors. From October 2006 to 2008, Ms. Li served as the Senior Design Engineer of Marvell Technology Group, a global supplier of infrastructure semiconductor solutions designed to process, move, store and secure data. From 2002 to October 2006, Ms. Li served as Design Engineer for Micron Technology, the largest memory device and solution provider in the United States. Ms. Li also served as an independent board member of Kandou Holding, S.A. from November 2022 to March 2025. Ms. Li received her M.B.A. from the MIT Sloan School of Management, MSEE from the University of Southern California, and B.A. from Tsinghua University.

Mike F. Chang, Ph.D., is the founder of our company and serves as our Executive Vice President of Strategic Initiatives and Chairman of the Board. Dr. Chang has extensive experience in both technology development and business operations in the power semiconductor industry. Prior to establishing our company, Dr. Chang served as the Executive Vice President at Siliconix Incorporated, a subsidiary of Vishay Intertechnology Inc., a global manufacturer and supplier of discrete and other power semiconductors, or Siliconix, from 1998 to 2000. Dr. Chang also held various management positions at Siliconix from 1987 to 1998. Earlier in his career, Dr. Chang focused on product research and development in various management positions at General Electric Company from 1974 to 1987. Dr. Chang received his B.S. in electrical engineering from National Cheng Kung University, Taiwan, and M.S. and Ph.D. in electrical engineering from the University of Missouri.

On July 8, 2026, the Board of Directors of Alpha and Omega Semiconductor Limited , appointed Mr. Joshua Chien to serve as an independent director of the Board, effective immediately. Mr. Chien currently serves as Executive Vice President, Product & Strategy Officer at Sonatus, Inc., an AI-enabling mobility software company spanning cloud to edge, where he leads product strategy and the expansion of the company's platform into new verticals beyond automotive, in a fractional executive capacity through his advisory firm, DeoNow. From 2021 to April 2026, Joshua Chien served as Chief Commercial Officer of SMTC Corporation, a global electronics manufacturing services company, responsible for all revenue-generating functions including sales, marketing, account management, and Asia operations, and achieved more than fourfold revenue growth. From 2014 to 2020, Mr. Chien was Senior Vice President of Global Sales and Marketing of SMTC. Prior to that, Mr. Chien served in various positions at Sanmina Corporation from 2000 to 2014, including Vice President of Global Strategic Business Development and Customer Service. Mr. Chien holds a Bachelor of Arts in Economics from the University of California, Berkeley, and completed the Finance for Executives program at Harvard Business School.