Washington, D.C. 20549


Pursuant to Section 13 or 15(d) of the
Securities Exchange Act of 1934
Date of Report (Date of earliest event reported): December 6, 2022

Alpha and Omega Semiconductor Limited
(Exact name of registrant as specified in its charter)
Bermuda 001-34717 77-0553536
(State or other jurisdiction
of incorporation)
File Number)
(I.R.S. Employer
Identification No.)
Clarendon House
2 Church Street
Hamilton HM 11
(Address of principal registered offices, including zip code)
(408) 830-9742
(Registrant’s telephone number, including area code)
(Former name or former address, if changed since last report)
Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions (see General Instruction A.2. below):
Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Securities registered pursuant to Section 12(b) of the Act:
Title of each class
Trading Symbol(s)
Name of each exchange on which registered
Common Shares AOSL The NASDAQ Global Select Market

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (17 CFR §230.405) or Rule 12b-2 of the Securities Exchange Act of 1934 (17 CFR §240.12b-2). Emerging growth company

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

On December 6, 2022, the Board of Directors (the “Board”) of Alpha and Omega Semiconductor Limited (the “Company”), based on the recommendation from a special committee established by the Board to review and assess executive succession matters, approved an executive transition plan under which Dr. Mike F. Chang, currently Chief Executive Officer and Chairman of the Board, will be appointed Executive Chairman of the Company and Mr. Stephen Chang, currently President, will be appointed as Chief Executive Officer (“CEO”), both effective as of March 1, 2023. Dr. Chang will continue to serve as Chairman of the Board.

Dr. Mike Chang, age 77, is the founder of the Company and has served as Chairman of the Board and CEO since the Company’s incorporation. Prior to establishing the 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.

Mr. Stephen Chang, age 45, serves as the Company’s President since January 2021. Prior to that, he served in various management positions, 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 the Company’s business strategies, product and technology development, sales and marketing functions, manufacturing operation and supply-chain management, and other managerial responsibilities. Mr. Stephen Chang is a son of Dr. Mike Chang.

A copy of the Company’s press release dated December 6, 2022, announcing the transition described above is attached hereto as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

(d) Exhibits.

Exhibit Number Description
104 Cover Page Interactive Data File (formatted as Inline XBRL)

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
Dated: December 8, 2022
Alpha and Omega Semiconductor Limited
By: /s/    Yifan Liang
Name: Yifan Liang
Title: Chief Financial Officer and Corporate Secretary

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