# EDGAR Filing Document

**Accession Number:** 0001511393
**File Stem:** 0001387467-23-000013
**Filing Date:** 2023-2
**Character Count:** 12458
**Document Hash:** ce97b85e5f6a37a43be73e7e3fd1d2b8
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001387467-23-000013.hdr.sgml**: 20230209

**ACCESSION NUMBER**: 0001387467-23-000013

**CONFORMED SUBMISSION TYPE**: SC 13G/A

**PUBLIC DOCUMENT COUNT**: 1

**FILED AS OF DATE**: 20230209

**DATE AS OF CHANGE**: 20230209

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** ALPHA & OMEGA SEMICONDUCTOR Ltd
- **CENTRAL INDEX KEY:** 0001387467
- **STANDARD INDUSTRIAL CLASSIFICATION:** SEMICONDUCTORS & RELATED DEVICES [3674]
- **IRS NUMBER:** 000000000
- **FISCAL YEAR END:** 0630

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-85975
- **FILM NUMBER:** 23606141

**BUSINESS ADDRESS:**
- **STREET 1:** 475 OAKMEAD PARKWAY
- **CITY:** SUNNYVALE
- **STATE:** CA
- **ZIP:** 94085
- **BUSINESS PHONE:** 408-830-9742

**MAIL ADDRESS:**
- **STREET 1:** 475 OAKMEAD PARKWAY
- **CITY:** SUNNYVALE
- **STATE:** CA
- **ZIP:** 94085

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** ALPHA & OMEGA SEMICONDUCTOR LTD
- **DATE OF NAME CHANGE:** 20070123
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Chang Mike F
- **CENTRAL INDEX KEY:** 0001511393

**FILING VALUES:**
- **FORM TYPE:** SC 13G/A

**MAIL ADDRESS:**
- **STREET 1:** 475 OAKMEAD PARKWAY
- **CITY:** SUNNYVALE
- **STATE:** CA
- **ZIP:** 94085

**UNITED STATES** 

**SECURITIES AND EXCHANGE COMMISSION** 

**Washington, D.C. 20549** 

_________________________________

**SCHEDULE 13G/A**

**INFORMATION TO BE INCLUDED IN STATEMENTS FILED**

**PURSUANT TO RULES 13d-1(b) AND (c) AND AMENDMENTS**

**THERETO FILED PURSUANT TO 13d-2(b)**

**(Amendment No. 5)**<sup>\*</sup>

---

| |
|:---|
| Alpha and Omega Semiconductor Limited |
| (Name of Issuer) |
| Common Shares, $0.002 par value per share |
| (Title of Class of Securities) |
| G6331P104 |
| (CUSIP Number) |
| December 31, 2022 |
| (Date of Event Which Requires Filing of this Statement) |

---

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

□ Rule 13d-1(b)

□ Rule 13d-1(c)

⌧ Rule 13d-1(d)

_______________________________

<sup>&nbsp;&nbsp;&nbsp;&nbsp;\*</sup> The remainder of this cover page shall be filled out for a reporting person's initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter the disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed to be "filed" for the purpose of Section 18 of the Securities Exchange Act of 1934 ("Act") or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, *see* the *Notes*).

------

---

| | |
|:---|:---|
| **CUSIP No. G6331P104** | **13G/A** |

---

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| | | | | |
|:---|:---|:---|:---|:---|
| 1 | NAME OF REPORTING PERSON <br>I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY) | NAME OF REPORTING PERSON <br>I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY) | NAME OF REPORTING PERSON <br>I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY) | NAME OF REPORTING PERSON <br>I.R.S. IDENTIFICATION NO. OF ABOVE PERSON (ENTITIES ONLY) |
| 1 | Mike F. Chang, Ph.D. | Mike F. Chang, Ph.D. | Mike F. Chang, Ph.D. | Mike F. Chang, Ph.D. |
| 2 | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP\* | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP\* | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP\* | CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP\* |
| 2 | | | | (a) □ |
| 2 | | | | (b) ⌧ |
| 3 | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY | SEC USE ONLY |
| 3 | | | | |
| 4 | CITIZENSHIP OR PLACE OF ORGANIZATION | CITIZENSHIP OR PLACE OF ORGANIZATION | CITIZENSHIP OR PLACE OF ORGANIZATION | CITIZENSHIP OR PLACE OF ORGANIZATION |
| 4 | U.S.A. | U.S.A. | U.S.A. | U.S.A. |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | 5 | SOLE VOTING POWER | SOLE VOTING POWER |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | 5 | 4,274,710 <sup>1</sup> | 4,274,710 <sup>1</sup> |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | 6 | SHARED VOTING POWER | SHARED VOTING POWER |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | 6 | -0- | -0- |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | 7 | SOLE DISPOSITIVE POWER | SOLE DISPOSITIVE POWER |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | 7 | 4,274,710 <sup>1</sup> | 4,274,710 <sup>1</sup> |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | 8 | SHARED DISPOSITIVE POWER | SHARED DISPOSITIVE POWER |
| **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | **NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH** | 8 | -0- | -0- |
| 9 | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON | AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON |
| 9 | 4,274,710 <sup>1</sup> | 4,274,710 <sup>1</sup> | 4,274,710 <sup>1</sup> | 4,274,710 <sup>1</sup> |
| 10 | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES\* □ | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES\* □ | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES\* □ | CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES\* □ |
| 11 | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) | PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9) |
| 11 | 15.51%\*\* | 15.51%\*\* | 15.51%\*\* | 15.51%\*\* |
| 12 | TYPE OF REPORTING PERSON\* | TYPE OF REPORTING PERSON\* | TYPE OF REPORTING PERSON\* | TYPE OF REPORTING PERSON\* |
| 12 | IN | IN | IN | IN |

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_____________________________

<sup>1</sup> Includes 180,000 common shares issuable upon exercise of share options within 60 days of December 31, 2022.

\*\*Based on 27,565,411 common shares outstanding as of December 31, 2022.

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| | |
|:---|:---|
| **CUSIP No. G6331P104** | **13G/A** |

---

**Item 1(a)&nbsp;&nbsp;&nbsp;&nbsp;Name of Issuer:** 

**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Alpha and Omega Semiconductor Limited (the "Company").

**Item 1(b)&nbsp;&nbsp;&nbsp;&nbsp;Address of Issuer's Principal Executive Offices:**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Clarendon House, 2 Church Street

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Hamilton HM 11, Bermuda

**Item 2(a)&nbsp;&nbsp;&nbsp;&nbsp;Name of Person Filing:** 

The Reporting Person is Mike F. Chang, Ph.D., the Chief Executive Officer and Chairman of the Board of the Company.

**Item 2(b)&nbsp;&nbsp;&nbsp;&nbsp;Address of Principal Business Office or, if None, Residence:** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;c/o Alpha and Omega Semiconductor Limited

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;475 Oakmead Parkway

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sunnyvale, California 94085

**Item 2(c)&nbsp;&nbsp;&nbsp;&nbsp;Citizenship:** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;U.S.A.

**Item 2(d)&nbsp;&nbsp;&nbsp;&nbsp;Title of Class of Securities:** 

**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Common Share

**Item 2(e)&nbsp;&nbsp;&nbsp;&nbsp;CUSIP Number:** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;G6331P104

**Item 3.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;If this Statement is Filed Pursuant to Rule 13d-1(b), or 13d-2(b) or (c), Check** 

**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;whether the Person Filing is:**

 (a) Broker or dealer registered under Section 15 of the Exchange Act.

 (b) Bank as defined in Section 3(a)(6) of the Exchange Act.

 (c) Insurance company as defined in Section 3(a)(19) of the Exchange Act.

 (d) Investment company registered under Section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8).

 (e) Investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E).

 (f) Employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F).

 (g) Parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G).

 (h) Savings association as defined in Section 3(b) of the Federal Deposit Insurance Act.

 (i) Church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act.

 (j) A non-U.S. institution in accordance with § 240. 13d-1(b)(1)(ii)(J);

 (k) Group in accordance with §240.13d-1(b)(1)(ii)(K).

&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.

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| | |
|:---|:---|
| **CUSIP No. G6331P104** | **13G/A** |

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**Item 4.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ownership.** 

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (a) &nbsp;&nbsp;&nbsp;&nbsp;Amount Beneficially Owned:

As of December 31, 2022, the Reporting Person beneficially owned 4,274,710 common shares of the Company, including 180,000 common shares issuable upon exercise of share options within 60 days of December 31, 2022, and has sole power to vote or to direct the vote and sole power to dispose or direct the disposition of 4,274,710 common shares.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b) &nbsp;&nbsp;&nbsp;&nbsp;Percent of Class:

The Reporting Person beneficially owned approximately 15.51% of the outstanding common shares of the Company, which is calculated based on 27,565,411 common shares issued and outstanding as of December 31, 2022.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c) &nbsp;&nbsp;&nbsp;&nbsp;Number of shares as to which the Reporting Person has:

&nbsp;&nbsp;&nbsp;&nbsp;

(i) sole power to vote or to direct the vote: 4,274,710

&nbsp;&nbsp;&nbsp;&nbsp;

(ii) shared power to vote or to direct the vote: 0

&nbsp;&nbsp;&nbsp;&nbsp;

(iii) sole power to dispose or direct the disposition of: 4,274,710

&nbsp;&nbsp;&nbsp;&nbsp;

(iv) shared power to dispose or direct the disposition of: 0

**Item 5.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ownership of Five Percent or Less of a Class.**

&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable

**Item 6.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Ownership of More than Five Percent on Behalf of Another Person.** 

**&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;**Not Applicable

**Item 7.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Identification and Classification of the Subsidiary Which Acquired the Security** <br>**&nbsp;&nbsp;&nbsp;&nbsp;Being Reported on by the Parent Holding Company.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable

**Item 8.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Identification and Classification of Members of the Group.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable

**Item 9.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Notice of Dissolution of Group.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable

**Item 10. &nbsp;&nbsp;&nbsp;&nbsp;Certifications.**

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not Applicable

[The remainder of this page intentionally left blank.]

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| | |
|:---|:---|
| **CUSIP No. G6331P104** | **13G/A** |

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**SIGNATURE**

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

Date: February 9, 2023

Mike F. Chang, Ph.D.

&nbsp;&nbsp;&nbsp;&nbsp;

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| | |
|:---|:---|
| Signature | /s/&nbsp;&nbsp;&nbsp;&nbsp;Mike F. Chang  |
| | Mike F. Chang |

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