Form SCHEDULE 13G/A ALPHA & OMEGA SEMICONDUC Filed by: Chang Mike F

SCHEDULE 13G

CUSIP No.

1

Names of Reporting Persons

Mike F. Chang

2

Check the appropriate box if a member of a Group (see instructions)

(a)
(b)

3

Sec Use Only

4

Citizenship or Place of Organization

UNITED STATES

Number of Shares Beneficially Owned by Each Reporting Person With:

5	Sole Voting Power 3,436,169.00
6	Shared Voting Power 776,032.00
7	Sole Dispositive Power 3,436,169.00
8	Shared Dispositive Power 776,032.00

9

Aggregate Amount Beneficially Owned by Each Reporting Person

4,212,201.00

10

Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)

11

Percent of class represented by amount in row (9)

13.9 %

12

Type of Reporting Person (See Instructions)

IN

SCHEDULE 13G

Item 1.

(a)

Name of issuer:

Alpha and Omega Semiconductor Limited

(b)

Address of issuer's principal executive offices:

475 Oakmead Parkway, Sunnyvale, California, 94085

Item 2.

(a)

Name of person filing:

Mike F. Chang

(b)

Address or principal business office or, if none, residence:

c/o Alpha and Omega Semiconductor Limited, 475 Oakmead Parkway, Sunnyvale, California 94085

(c)

Citizenship:

U.S.A.

(d)

Title of class of securities:

Common Share

(e)

CUSIP No.:

Item 3.

If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);

(b)

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);

(c)

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);

(d)

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

(e)

An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);

(f)

An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);

(g)

A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h)

A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j)

A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:

(k)

Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).

Item 4.

Ownership

(a)

Amount beneficially owned:

As of June 30, 2026, the aggregate amount beneficially owned by the Reporting Person is 4,212,201 common shares of the Issuer. The Reporting Person has sole power to vote or to direct the vote and sole power to dispose or direct the disposition of 3,436,169 common shares, and shared power to vote or to direct the vote and shared power to dispose or direct the disposition of 776,032 common shares.

(b)

Percent of class:

The Reporting Person beneficially owned approximately 13.9% of the outstanding common shares of the Issuer, which is calculated based on 30,253,076 common shares issued and outstanding as of June 30, 2026, as disclosed by the Issuer to the Reporting Person. %

(c)

Number of shares as to which the person has:

(i) Sole power to vote or to direct the vote:

3,436,169

(ii) Shared power to vote or to direct the vote:

776,032

(iii) Sole power to dispose or to direct the disposition of:

3,436,169

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

776,032

Item 5.

Ownership of 5 Percent or Less of a Class.

Item 6.

Ownership of more than 5 Percent on Behalf of Another Person.

If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.

Not Applicable

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.

If a parent holding company has filed this schedule, pursuant to Rule 13d-1(b)(ii)(G), so indicate under Item 3(g) and attach an exhibit stating the identity and the Item 3 classification of the relevant subsidiary. If a parent holding company has filed this schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating the identification of the relevant subsidiary.

Not Applicable

Item 8.

Identification and Classification of Members of the Group.

If a group has filed this schedule pursuant to §240.13d-1(b)(1)(ii)(J), so indicate under Item 3(j) and attach an exhibit stating the identity and Item 3 classification of each member of the group. If a group has filed this schedule pursuant to §240.13d-1(c) or §240.13d-1(d), attach an exhibit stating the identity of each member of the group.

Not Applicable

Item 9.

Notice of Dissolution of Group.

Notice of dissolution of a group may be furnished as an exhibit stating the date of the dissolution and that all further filings with respect to transactions in the security reported on will be filed, if required, by members of the group, in their individual capacity. See Item 5.

Not Applicable

Item 10.

Certifications:

Not Applicable

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.

Mike F. Chang

Signature:	Mike F. Chang
Name/Title:	Mike F. Chang / Director
Date:	08/10/2026

Form SCHEDULE 13G/A ALPHA & OMEGA SEMICONDUC Filed by: Chang Mike F

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