Alpha & Omega Semiconductor (AOSL) CFO gets RSUs, holds 305K shares

Rhea-AI Filing Summary

ALPHA & OMEGA SEMICONDUCTOR Ltd CFO and Corporate Secretary Yifan Liang reported equity compensation and related tax withholding transactions in common shares. Liang received two grants of 22,500 Restricted Share Units each, awarded at no cash cost, which are scheduled to vest in equal annual installments over four years from March 16, 2026, contingent on continued service. The filing also shows a total of 11,499 shares withheld at $21.43 per share to cover tax obligations upon vesting of earlier RSU and Performance Share Unit awards. After these grants and withholdings, Liang directly holds 305,145 common shares, which include various unvested MSU, PSU and RSU awards that vest over time based on service and, for some awards, corporate performance goals.

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

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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^*

Liang Yifan

(Last) (First) (Middle)

475 OAKMEAD PARKWAY

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	CFO and Corp Secretary

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
03/16/2026

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 Shares	03/16/2026		A		22,500(1)	A	$0	294,144(2)(3)(4)	D
Common Shares	03/16/2026		F		6,889(5)	D	$21.43	287,255(2)(3)(4)	D
Common Shares	03/16/2026		F		4,610(6)	D	$21.43	282,645(2)(3)(4)	D
Common Shares	03/16/2026		A		22,500(7)	A	$0	305,145(2)(3)(4)	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. The Restricted Share Unit (RSU) shall vest in equal annual installments over four (4) years from March 16, 2026, provided that the Reporting Person remains in the Issuer's service through each such vesting date.

2. Includes 22,500 unvested shares subject to the Market-Based Performance Share Unit (MSU) granted on July 1, 2018 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person.

3. Includes 25,625 unvested shares subject to the Performance Share Unit (PSU) granted on March 15, 2024 and March 17, 2025 which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person.

4. Includes an aggregate of 52,500 shares subject to Restricted Share Unit awards (RSU) granted on March 15, 2023, March 15, 2024, March 17, 2025, and March 16, 2026 which will be issued as such units vest in accordance with their terms, and excludes 22,500 unvested common shares subject to the PSU granted on March 16, 2026, which may become vested upon achievement of certain corporate performance goals in the future.

5. Shares withheld to satisfy the Issuer's tax withholding obligation upon vesting of Restricted Share Units (RSU) granted on March 15, 2022, March 15, 2023, March 15, 2024, and March 17, 2025.

6. Shares withheld to satisfy the Issuer's tax withholding obligation upon the vesting of Performance Share Units (PSU) granted on March 15, 2022, March 15, 2024, and March 17, 2025.

7. Represents PSU granted on March 17, 2025 upon the achievement of specified performance goals as certified previously by the Compensation Committee on March 5, 2026 and the issuance of shares thereunder is subject to vesting in four equal annual installment commencing on March 17, 2026 provided that the Reporting Person remains in the issuer's service through each such vesting date.

Remarks:

	/s/ Yanbing Hong, attorney-in-fact for Yifan Liang	03/18/2026
	** 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)

FAQ

What did AOSL CFO Yifan Liang report in the latest Form 4?

Yifan Liang reported equity compensation grants and related tax withholdings in Alpha & Omega Semiconductor common shares. The filing shows two 22,500-share RSU awards and share withholdings to cover tax obligations tied to previously granted RSU and PSU awards, all as part of compensation.

How many Alpha & Omega Semiconductor (AOSL) shares does the CFO hold after these transactions?

Following the reported transactions, CFO Yifan Liang directly holds 305,145 Alpha & Omega Semiconductor common shares. This total includes vested shares and multiple unvested MSU, PSU and RSU awards that will vest over time, subject to continued service and, for some units, specified corporate performance goals.

What are the terms of the new RSU grants to AOSL’s CFO?

The new Restricted Share Unit awards to CFO Yifan Liang each cover 22,500 shares and were granted at no cash cost. These RSUs are scheduled to vest in equal annual installments over four years starting March 16, 2026, provided Liang remains in the company’s service.

Why were Alpha & Omega Semiconductor shares withheld in this Form 4?

A total of 11,499 shares were withheld to satisfy the company’s tax withholding obligations on vesting equity. The withholdings relate to RSUs and PSUs granted on various dates from March 15, 2022 through March 17, 2025, rather than open-market sales by CFO Yifan Liang.

What unvested MSU and PSU awards does the AOSL CFO have outstanding?

The filing notes 22,500 unvested shares from a market-based MSU granted July 1, 2018 and 25,625 unvested PSU shares from grants on March 15, 2024 and March 17, 2025. It also references 22,500 PSU shares granted March 16, 2026 that depend on future corporate performance.

How many unvested RSUs are currently reported for AOSL CFO Yifan Liang?

An aggregate 52,500 shares are subject to RSU awards granted on March 15, 2023, March 15, 2024, March 17, 2025 and March 16, 2026. These shares will be issued as the RSUs vest according to their terms, assuming continued service with Alpha & Omega Semiconductor.