What unvested performance share units does Bing Xue have in AOSL?

Bing Xue’s holdings include 18,750 unvested shares from performance share units granted in March 2024 and March 2025. These units vest upon meeting service-based vesting conditions, meaning Xue must continue service for the shares to fully vest.

What market-based performance share units does Bing Xue hold in ALPHA & OMEGA SEMICONDUCTOR?

Bing Xue holds 22,500 unvested shares tied to market-based performance share units granted on July 1, 2018. These units are subject to service-based vesting conditions, so the underlying shares vest over time as continued service requirements are satisfied.

What restricted share units (RSUs) are included in Bing Xue’s AOSL holdings?

Bing Xue’s holdings include 38,750 shares subject to restricted share unit awards granted between March 2023 and March 2026. These RSUs convert into common shares as they vest, while 15,000 additional PSU-linked shares from March 16, 2026 are excluded until performance goals are achieved.

AOSL (AOSL) EVP Bing Xue sells 4,916 shares under 10b5-1 plan

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

ALPHA & OMEGA SEMICONDUCTOR Ltd executive vice president of worldwide sales and business development, Bing Xue, sold 4,916 common shares in an open-market transaction at $41.00 per share. The sale was executed on May 18, 2026 under a pre-arranged Rule 10b5-1 trading plan.

After the sale, Xue directly holds 127,701 common shares, including unvested equity awards. These holdings comprise 18,750 shares tied to performance share units granted in 2024 and 2025, 22,500 shares tied to market-based performance share units granted in 2018, and 38,750 shares from restricted share unit awards granted between 2023 and 2026.

Insider Trade Summary 10b5-1

Net Seller: 4,916 shares ($201,556)

Net Sell 1 txn

Insider Xue Bing

Role EVP-WW Sales & Bus Development

Sold 4,916 shs ($202K)

Type	Security	Shares	Price	Value
Sale	Common Share	4,916	$41.00	$202K

Holdings After Transaction: Common Share — 127,701 shares (Direct, null)

Footnotes (1)

The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025. The price reported in Column 4 is the exact price at which all shares were sold. Includes 18,750 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. 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. Includes an aggregate of 38,750 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 15,000 unvested shares subject to the PSU granted on March 16, 2026, which may become vested upon achievement of certain corporate performance goals in the future.

Key Figures

Shares sold: 4,916 shares Sale price: $41.00 per share Shares held after sale: 127,701 shares +5 more

8 metrics

Shares sold 4,916 shares Open-market sale on May 18, 2026

Sale price $41.00 per share Exact price for all sold shares

Shares held after sale 127,701 shares Direct common share holdings following transaction

Unvested PSUs 18,750 shares Performance share units granted March 2024 and March 2025

Unvested MSUs 22,500 shares Market-based performance share units granted July 1, 2018

Unvested RSUs 38,750 shares Restricted share units granted 2023–2026

10b5-1 plan adoption date August 14, 2025 Date Bing Xue adopted trading plan

Excluded unvested PSU shares 15,000 shares PSU from March 16, 2026 contingent on performance goals

Key Terms

Rule 10b5-1 trading plan, Performance Share Unit (PSU), Market-Based Performance Share Unit (MSU), Restricted Share Unit awards (RSU), +1 more

5 terms

Rule 10b5-1 trading plan regulatory

"The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person"

A Rule 10b5-1 trading plan is a pre-arranged schedule that allows company insiders to buy or sell stock at specific times, even if they have inside information. It helps prevent accusations of unfair trading by making these transactions look planned and transparent, rather than sneaky or illegal.

service-based vesting conditions financial

"which are subject to vesting upon satisfaction of service-based vesting conditions by the Reporting Person"

Form 4 Insider Transactions: What Each Field Means →

05/20/2026 - 04:01 PM

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^*

Xue Bing

(Last)

(First)

(Middle)

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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
	EVP-WW Sales & Bus Development

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/18/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Share	05/18/2026		S		4,916⁽¹⁾	D	$41⁽²⁾	127,701⁽³⁾⁽⁴⁾⁽⁵⁾	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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025.

2. The price reported in Column 4 is the exact price at which all shares were sold.

3. Includes 18,750 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 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.

5. Includes an aggregate of 38,750 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 15,000 unvested shares subject to the PSU granted on March 16, 2026, which may become vested upon achievement of certain corporate performance goals in the future.

Remarks:

	/s/ Yanbing Hong, attorney-in-fact for Bing Xue	05/20/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What did Bing Xue report in the latest AOSL Form 4 filing?

Bing Xue reported selling 4,916 Alpha & Omega Semiconductor common shares at $41.00 each. The transaction occurred on May 18, 2026 as an open-market sale executed under a pre-arranged Rule 10b5-1 trading plan.

How many ALPHA & OMEGA SEMICONDUCTOR (AOSL) shares did Bing Xue sell and at what price?

Bing Xue sold 4,916 common shares of Alpha & Omega Semiconductor at an exact price of $41.00 per share. The filing specifies that all shares in this transaction were sold at that same price in an open-market sale.

How many AOSL shares does Bing Xue hold after the reported sale?

After the transaction, Bing Xue holds 127,701 Alpha & Omega Semiconductor common shares directly. This figure includes both vested shares and multiple unvested equity awards such as performance share units, market-based performance share units, and restricted share units granted between 2018 and 2026.

Was the AOSL insider sale by Bing Xue under a Rule 10b5-1 plan?

Yes. The filing states that Bing Xue’s sale was effected pursuant to a Rule 10b5-1 trading plan adopted on August 14, 2025. Such plans pre-schedule trades, indicating the sale’s timing was established in advance rather than decided opportunistically.