Director at Alpha & Omega (NASDAQ: AOSL) sells 4,061 shares

Q: What insider transaction did AOSL director Claudia Chen report?

Director Claudia Chen reported selling 4,061 common shares of Alpha & Omega Semiconductor. The transactions occurred on May 22, 2026 as open-market sales, documented in a Form 4 insider trading report with the SEC.

Q: At what prices did Claudia Chen sell AOSL shares on May 22, 2026?

Claudia Chen’s reported sales used weighted average prices of $39.4742 and $40.5406 per share. Footnotes note the shares were sold in multiple trades within price ranges around those averages, reflecting typical execution across several market transactions.

Q: How many Alpha & Omega (AOSL) shares did Claudia Chen sell in total?

Across two reported trades, Claudia Chen sold 4,061 common shares of Alpha & Omega Semiconductor. One transaction covered 3,844 shares , and another covered 217 shares , both coded as open-market sales under SEC transaction code “S.”

Q: What do the weighted average prices in Claudia Chen’s Form 4 for AOSL mean?

The Form 4 explains that the reported prices are weighted averages across multiple trades. For each line, shares were sold in several transactions within specified price ranges, and Chen offers to provide detailed breakdowns of share counts at each exact price.

Filing Impact

(Moderate)

Filing Sentiment

(Negative)

Form Type

Rhea-AI Filing Summary

Alpha & Omega Semiconductor director Claudia Chen reported selling a total of 4,061 common shares on May 22, 2026 in open-market transactions. The shares were sold at weighted average prices of $39.4742 and $40.5406 per share. The sales were carried out under a Rule 10b5-1 trading plan adopted on February 20, 2026, indicating they were pre-arranged. Following these transactions, Chen continues to directly hold between 28,192 and 28,409 common shares.

Insider Trade Summary 10b5-1

Net Seller: 4,061 shares ($160,536)

Net Sell 2 txns

Insider Chen Claudia

Role null

Sold 4,061 shs ($161K)

Type	Security	Shares	Price	Value
Sale	Common Share	3,844	$39.4742	$152K
Sale	Common Share	217	$40.5406	$9K

Holdings After Transaction: Common Share — 28,409 shares (Direct, null)

Footnotes (1)

The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 20, 2026. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.1400 to $40.0500, inclusive. The Reporting Person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha and Omega Semiconductor Limited, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.2250 to $40.8300, inclusive. The Reporting Person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha and Omega Semiconductor Limited, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

Key Figures

Shares sold total: 4,061 shares Weighted average price 1: $39.4742/share Weighted average price 2: $40.5406/share +2 more

5 metrics

Shares sold total 4,061 shares Open-market sales on May 22, 2026

Weighted average price 1 $39.4742/share Sale of 3,844 common shares

Weighted average price 2 $40.5406/share Sale of 217 common shares

Shares after transaction (line 1) 28,192 shares Direct common share holdings reported after one sale

Shares after transaction (line 2) 28,409 shares Direct common share holdings reported after another sale

Key Terms

Rule 10b5-1 trading plan, weighted average price, open-market sale

3 terms

Rule 10b5-1 trading plan regulatory

"The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 20, 2026."

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.

weighted average price financial

"The price reported in Column 4 is a weighted average price."

Weighted average price is the average price of a security where each trade or component is counted according to its size, so bigger trades pull the average more than smaller ones. Think of it like calculating the average cost of a grocery haul where items you bought more of have greater influence on the final per-item cost. Investors use it to understand the true average price paid or received, judge execution quality, and compare trading performance against market movement.

open-market sale financial

"transaction_action": "open-market sale""

An open-market sale is when a shareholder sells existing shares directly on a public exchange to any willing buyer, rather than through a private deal. Think of it like putting goods on a busy market stall where price is set by supply and demand; for investors it matters because such sales increase available supply, can put short-term downward pressure on the stock price, and signal changes in liquidity or investor confidence.

Form 4 Insider Transactions: What Each Field Means →

05/26/2026 - 04:02 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^*

Chen Claudia

(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)
05/22/2026

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	05/22/2026		S		3,844⁽¹⁾	D	$39.4742⁽²⁾	28,409	D
Common Share	05/22/2026		S		217⁽¹⁾	D	$40.5406⁽³⁾	28,192	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 February 20, 2026.

2. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $39.1400 to $40.0500, inclusive. The Reporting Person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha and Omega Semiconductor Limited, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $40.2250 to $40.8300, inclusive. The Reporting Person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha and Omega Semiconductor Limited, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within such range.

Remarks:

	/s/ Yanbing Hong, attorney-in-fact for Claudia Chen	05/26/2026
	** 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 insider transaction did AOSL director Claudia Chen report?

Director Claudia Chen reported selling 4,061 common shares of Alpha & Omega Semiconductor. The transactions occurred on May 22, 2026 as open-market sales, documented in a Form 4 insider trading report with the SEC.

At what prices did Claudia Chen sell AOSL shares on May 22, 2026?

Claudia Chen’s reported sales used weighted average prices of $39.4742 and $40.5406 per share. Footnotes note the shares were sold in multiple trades within price ranges around those averages, reflecting typical execution across several market transactions.

How many Alpha & Omega (AOSL) shares did Claudia Chen sell in total?

Across two reported trades, Claudia Chen sold 4,061 common shares of Alpha & Omega Semiconductor. One transaction covered 3,844 shares, and another covered 217 shares, both coded as open-market sales under SEC transaction code “S.”

How many AOSL shares does Claudia Chen hold after the reported sales?

After the May 22, 2026 sales, reported direct holdings range between 28,192 and 28,409 common shares. Each transaction line in the Form 4 lists shares owned following that specific trade, showing Chen retains a substantial direct equity position.

Were Claudia Chen’s AOSL stock sales made under a Rule 10b5-1 plan?

Yes. A footnote states the sales were effected pursuant to a Rule 10b5-1 trading plan adopted on February 20, 2026. Such pre-arranged plans automate trades, reducing the significance of day-to-day timing decisions by the insider.

What do the weighted average prices in Claudia Chen’s Form 4 for AOSL mean?

The Form 4 explains that the reported prices are weighted averages across multiple trades. For each line, shares were sold in several transactions within specified price ranges, and Chen offers to provide detailed breakdowns of share counts at each exact price.