Alpha & Omega Semiconductor grants 1,368 RSUs to director

Chien Joshua C. reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Chien Joshua C. reported acquisition or exercise transactions in this Form 4 filing.

Alpha & Omega Semiconductor Ltd reports that director Joshua C. Chien was granted restricted share units covering 1,368 common shares on 2026-07-20 at a reported price of $0.0000 per share. The RSUs vest on the same schedule as prior annual director grants, pro rata with his Board service, and 1,368 common shares subject to RSUs are reported as directly owned following this award.

Insider Trade Summary

Grant/Award: 1,368 shares

Grant/Award 1 txn

Insider Chien Joshua C.

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Share F1	1,368	$0.00	$0.00

Holdings After Transaction: Common Share — 1,368 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 on the same dates that the annual grants made to the directors at the preceding general annual shareholders meeting vest, with the number of shares vesting on each vesting date pro rata based on the period of service.

Key Figures

RSU grant size: 1,368 common shares Grant price per share: $0.0000 per share Holdings after grant: 1,368 common shares +1 more

4 metrics

RSU grant size 1,368 common shares Common shares subject to restricted share unit award granted to director

Grant price per share $0.0000 per share Reported transaction price for the RSU-related common share award

Holdings after grant 1,368 common shares Total non-derivative common shares reported as directly owned following transaction

Transaction date 2026-07-20 Date of RSU grant covering 1,368 common shares to director

Key Terms

restricted share units (RSUs), 2018 Omnibus Incentive Plan, general annual shareholders meeting

3 terms

restricted share units (RSUs) financial

"Represents the Issuer's common shares subject to restricted share units (RSUs) award"

Restricted share units (RSUs) are a form of employee pay where a company promises to give shares (or their cash value) to workers after certain conditions, usually time or performance, are met. For investors, RSUs matter because they can increase the number of shares outstanding and signal how management is being paid and incentivized—think of them as delayed bonuses that convert into ownership when vesting conditions are satisfied.

2018 Omnibus Incentive Plan financial

"award granted to the Reporting Person ... under the Issuer's 2018 Omnibus Incentive Plan"

general annual shareholders meeting regulatory

"annual grants made to the directors at the preceding general annual shareholders meeting vest"

FAQ

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

What insider transaction did Alpha & Omega Semiconductor (AOSL) report for Joshua C. Chien?

Alpha & Omega Semiconductor reported that director Joshua C. Chien received a grant of restricted share units covering 1,368 common shares on 2026-07-20. The award is compensation for his service on the Board of Directors under the company’s 2018 Omnibus Incentive Plan.

How many shares were involved in Joshua C. Chien’s July 2026 Form 4 for AOSL?

The Form 4 for AOSL shows 1,368 common shares involved, issued through a restricted share unit award. After this grant, 1,368 common shares subject to RSUs are reported as directly owned by Joshua C. Chien in the non-derivative holdings table.

What type of equity award did AOSL grant to director Joshua C. Chien?

Joshua C. Chien received an award of restricted share units (RSUs) covering 1,368 common shares. The RSUs were granted for his services on the Board of Directors under Alpha & Omega Semiconductor’s 2018 Omnibus Incentive Plan.

How do Joshua C. Chien’s RSUs in AOSL vest according to the Form 4?

The RSUs granted to Joshua C. Chien in AOSL will vest on the same dates as annual grants made to directors at the preceding general annual shareholders meeting. The number of shares vesting on each date is pro rata based on his period of Board service.

What are Joshua C. Chien’s reported AOSL share holdings after this RSU grant?

Following the reported transaction, the Form 4 lists 1,368 common shares subject to RSUs as directly owned by Joshua C. Chien. These holdings reflect the non-derivative position associated with his restricted share unit award for Board service.

Was Joshua C. Chien’s AOSL RSU transaction made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not marked as affirmative, indicating the transaction is not designated as occurring under a Rule 10b5-1 trading plan. The award is described instead as compensation for Board of Directors service.

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

Form 4 Insider Transactions: What Each Field Means →

See more from StockTitan in Google Search and AI answers. Adds StockTitan as a preferred source · opens Google

Add on Google Not now

Accepted by SEC EDGAR 07/21/2026 - 04:02 PM EDT 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^*

Chien Joshua C.

(Last) (First) (Middle)

C/O ALPHA & OMEGA SEMICONDUCTOR LIMITED

475 OAKMEAD PKWY

(Street)

SUNNYVALE CALIFORNIA 94085

(City) (State) (Zip)

UNITED STATES

(Country)

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)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
07/20/2026

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

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

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

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	07/20/2026		A		1,368	A	$0	1,368(1)	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 on the same dates that the annual grants made to the directors at the preceding general annual shareholders meeting vest, with the number of shares vesting on each vesting date pro rata based on the period of service.

Remarks:

	/s/Yanbing Hong, attorney-in-fact for Joshua C. Chien	07/21/2026
	** 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.
* Form 4: SEC 1474 (03-26)