Alpha and Omega director Chang to retire

Alpha and Omega Semiconductor Limited reported that director Dr. Lucas S. Chang has decided to retire from its Board of Directors.

Rhea-AI Filing Summary

Alpha and Omega Semiconductor Limited reported that director Dr. Lucas S. Chang has decided to retire from its Board of Directors. He notified the company on April 13, 2026, and his retirement will be effective April 17, 2026.

8-K Event Classification

Item 5.02 — Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers

1 item

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers Governance

Key personnel changes including departures, elections, or appointments of directors and executive officers.

Key Figures

Retirement effective date: April 17, 2026 Retirement notice date: April 13, 2026

2 metrics

Retirement effective date April 17, 2026 Effective date of Dr. Chang’s retirement from the Board

Retirement notice date April 13, 2026 Date Dr. Chang notified the company of his decision

Key Terms

Form 8-K, Item 5.02, Board of Directors, Emerging growth company, +1 more

5 terms

Form 8-K regulatory

"Check the appropriate box below if the Form 8-K filing is intended"

A Form 8-K is a report that companies file with the government to share important news quickly, such as changes in leadership, major business deals, or financial updates. It matters because it helps investors stay informed about significant events that could affect the company's value or stock price.

Item 5.02 regulatory

"Item 5.02 Departure of Directors or Certain Officers; Election of Directors"

Board of Directors financial

"his decision to retire from the Board of Directors of the Company"

The Board of Directors is a group of people chosen by a company's owners to help make big decisions and oversee how the company is run. They act like a team of advisors or managers, making sure the company stays on track and meets its goals. Their choices can influence the company's success and how it grows.

Emerging growth company regulatory

"Emerging growth company"

An emerging growth company is a recently public or smaller public firm that qualifies for temporary, lighter regulatory and disclosure rules to reduce the cost and effort of being public. For investors, it means the company may provide less historical financial detail and face fewer reporting requirements than larger firms, so it can grow more quickly but also carries higher uncertainty—like buying a promising early-stage product with fewer user reviews.

Chief Financial Officer and Corporate Secretary financial

"Title: | Chief Financial Officer and Corporate Secretary"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What did Alpha and Omega Semiconductor Limited (AOSL) disclose in this Form 8-K?

Alpha and Omega Semiconductor Limited disclosed that director Dr. Lucas S. Chang decided to retire from its Board of Directors. The filing states that he notified the company on April 13, 2026, with his retirement effective April 17, 2026.

When will Dr. Lucas S. Chang retire from the Alpha and Omega (AOSL) board?

Dr. Lucas S. Chang’s retirement from the Alpha and Omega Semiconductor Limited Board of Directors will be effective April 17, 2026. The company received his retirement notice on April 13, 2026, and reported the change under the director departure section.

Who is the director retiring from Alpha and Omega Semiconductor Limited (AOSL)?

The retiring director is Dr. Lucas S. Chang, a member of Alpha and Omega Semiconductor Limited’s Board of Directors. He informed the company of his decision to retire on April 13, 2026, with the retirement effective April 17, 2026.

Which SEC item does AOSL use to report Dr. Chang’s retirement?

Alpha and Omega Semiconductor Limited reports Dr. Chang’s retirement under Item 5.02, covering departure of directors or certain officers and related appointments or compensatory arrangements. This item is used to disclose changes in key leadership positions.

Who signed the AOSL Form 8-K announcing Dr. Chang’s retirement?

The Form 8-K was signed on behalf of Alpha and Omega Semiconductor Limited by Yifan Liang. He is identified in the filing as the company’s Chief Financial Officer and Corporate Secretary, acting as the authorized representative for the report.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 04/17/2026 - 04:11 PM EDT Learn about SEC filing dates

0001387467false00013874672026-04-132026-04-13

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

_________________________________

FORM 8-K

_________________________________

CURRENT REPORT

Pursuant to Section 13 or 15(d) of the

Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): April 13, 2026

 _________________________________

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)

(Commission File Number)

(IRS Employer Identification No.)

Clarendon House

2 Church Street

Hamilton HM 11

Bermuda

(Address of principal executive offices, including zip code)

(408) 830-9742

(Registrant’s telephone number, including area code)

N/A

(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 April 13, 2026, Dr. Lucas S. Chang notified Alpha & Omega Semiconductor Limited (the “Company”) of his decision to retire from the Board of Directors of the Company, effective April 17, 2026.

SIGNATURE

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: April 17, 2026

Alpha and Omega Semiconductor Limited
By:						/s/    Yifan Liang
Name:						Yifan Liang
Title:						Chief Financial Officer and Corporate Secretary

Filing Exhibits & Attachments

3 documents

Other Documents

• EX-101 XBRL TAXONOMY EXTENSION SCHEMA DOCUMENT 1.8 KB
• EX-101 XBRL TAXONOMY EXTENSION LABEL LINKBASE DOCUMENT 22.2 KB
• EX-101 XBRL TAXONOMY EXTENSION PRESENTATION LINKBASE DOCUMENT 12.7 KB