AOSL Form 4: Director granted 5,681 RSUs; holds 30,885 shares

Alpha & Omega Semiconductor (AOSL) — Form 4 filing: A director reported an award of 5,681 restricted share units (RSUs) on 11/11/2025, coded “A” at a price of $0 under the company’s 2018 Omnibus Incentive Plan.

Rhea-AI Filing Summary

Alpha & Omega Semiconductor (AOSL) — Form 4 filing: A director reported an award of 5,681 restricted share units (RSUs) on 11/11/2025, coded “A” at a price of $0 under the company’s 2018 Omnibus Incentive Plan. The RSUs vest in four equal quarterly installments following the grant date.

Following this transaction, the reporting person beneficially owned 30,885 common shares, held directly.

Insider Trade Summary

Grant/Award: 5,681 shares

Grant/Award 1 txn

Insider Chang Lucas S.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Share	5,681	$0.00	$0.00

Holdings After Transaction: Common Share — 30,885 shares (Direct)

Footnotes (1)

1. F1. Represents the Issuer's common shares subject to restricted share units (RSUs) award granted to the Reporting Person for services on the Board of Directors of the Issuer under the Issuer's 2018 Omnibus Incentive Plan. The RSUs will vest in four (4) successive equal quarterly installments upon the Reporting Person's completion of each quarter of Board service following the grant date.

FAQ

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

What did AOSL’s Form 4 report?

A director received 5,681 RSUs on 11/11/2025 under the 2018 Omnibus Incentive Plan.

How do the RSUs vest for AOSL’s director?

They vest in four equal quarterly installments following the grant date.

What is the transaction code and price?

Transaction code A with a $0 price, reflecting an award grant.

How many AOSL shares are beneficially owned after the transaction?

The reporting person beneficially owned 30,885 common shares, held directly.

What is the reporting person’s relationship to AOSL?

The reporting person is a Director of Alpha & Omega Semiconductor Ltd.

What plan governed the RSU grant?

The grant was made under AOSL’s 2018 Omnibus Incentive Plan.

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

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Accepted by SEC EDGAR 11/12/2025 - 04:02 PM EST Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Chang Lucas S.

(Last) (First) (Middle)

C/O ALPHA & OMEGA SEMICONDUCTOR LIMITED

475 OAKMEAD PARKWAY

(Street)

SUNNYVALE CA 94085

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
ALPHA & OMEGA SEMICONDUCTOR Ltd [ AOSL ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

3. Date of Earliest Transaction (Month/Day/Year)
11/11/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Share	11/11/2025		A		5,681(1)	A	$0	30,885	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Represents the Issuer's common shares subject to restricted share units (RSUs) award granted to the Reporting Person for services on the Board of Directors of the Issuer under the Issuer's 2018 Omnibus Incentive Plan. The RSUs will vest in four (4) successive equal quarterly installments upon the Reporting Person's completion of each quarter of Board service following the grant date.

Remarks:

	/s/ Yanbing Hong, attorney-in-fact for Lucas S. Chang	11/12/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.