ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)

Data as of Sep 11, 2026, from SEC Form 4 filings.

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Latest AOSL insider trades

Bing Xue - Officer
Open-market sale$30K
Jul 16, 2026
Bing Xue

About ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)

ALPHA & OMEGA SEMICONDUCTOR Ltd is an SEC registrant, filing under CIK 0001387467, classified as semiconductors and related devices. We track it alongside the rest of the Information Technology sector.

Sector: Information Technology

SEC filings for AOSL on EDGAR

AOSL Form 4 activity by transaction type, last 90 days

Form 4 transaction type	Transactions	Shares	Total value
Bona-fide gift	3	3,201,894

Dollar totals cover purchases and sales only (codes P and S). Grants, option exercises, gifts and tax withholding are counted in shares, because none of them is a trade at a market price.

AOSL insider transactions (Form 4)

58 Form 4 filings on record, the earliest from Oct 25, 2024, newest first. Filing history page 1 of 2.

Traded	Insider	Transaction	Security	Shares	Price	Value
Aug 24, 2026	Stephen Chunping Chang - Officer	Gift	Common Share	100,947^{footnote F1}	$0.00	-
Footnote F1 (shares): On August 24, 2026, the reporting person received 100,947 common shares to the STEPHEN CHUPING CHANG TTEE TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the… Full note on SEC EDGAR
Aug 24, 2026	Mike F. Chang - Director	Gift	Common Shares	100,947^{footnote F1}	$0.00	-
Footnote F1 (shares): On August 24, 2026, the CHANG Trust gifted 100,947 common shares for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting person remains the beneficial… Full note on SEC EDGAR
Aug 13, 2026	Mike F. Chang - Director	Gift	Common Shares	3,000,000^{footnote F1}	$0.00	-
Footnote F1 (shares): On August 13, 2026, the reporting person transferred 3,000,000 common shares to the CHANG TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting… Full note on SEC EDGAR
Jul 20, 2026	Joshua C. Chien - Director	Grant or award	Common Share	1,368	$0.00	-
Jul 16, 2026	Bing Xue - Officer	Open-market sale	Common Share	875^{footnote F1}	$33.99^{footnote F2}	$30K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Jul 13, 2026	Mike F. Chang - Director	Gift	Common Shares	23,754^{footnote F1}	$0.00	-
Footnote F1 (shares): On July 13, 2026, the reporting person transferred 23,754 common shares to the CHANG TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting… Full note on SEC EDGAR
Jun 16, 2026	Bing Xue - Officer	Open-market sale	Common Share	4,916^{footnote F1}	$47.09^{footnote F2}	$231K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Jun 1, 2026	Mike F. Chang - Director	Gift	Common Shares	30,000	$0.00	-
May 26, 2026	Mike F. Chang - Director	Gift	Common Shares	39,780^{footnote F1}	$0.00	-
Footnote F1 (shares): On May 26, 2026, the reporting person transferred 39,780 common shares to the CHANG TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting… Full note on SEC EDGAR
May 22, 2026	Mike F. Chang - Director	Gift	Common Shares	736,252	$0.00	-
May 22, 2026	Claudia Chen - Director	Open-market sale	Common Share	3,844^{footnote F1}	$39.47^{footnote F2}	$152K
May 22, 2026	Claudia Chen - Director	Open-market sale	Common Share	217^{footnote F1}	$40.54^{footnote F3}	$9K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 20, 2026. Footnote F2 (price): 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… Full note on SEC EDGAR Footnote F3 (price): 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… Full note on SEC EDGAR
May 21, 2026	Stephen Chunping Chang - Officer	Gift	Common Share	2,000	$0.00	-
May 18, 2026	Bing Xue - Officer	Open-market sale	Common Share	4,916^{footnote F1}	$41.00^{footnote F2}	$202K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Apr 17, 2026	Yifan Liang - Officer	Open-market sale	Common Shares	8,625^{footnote F1}	$35.00^{footnote F2}	$302K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 21, 2025. Footnote F2 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.0000 to $35.0200, inclusive. The Reporting Person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha… Full note on SEC EDGAR
Apr 17, 2026	Stephen Chunping Chang - Officer	Open-market sale	Common Share	1,492^{footnote F1}	$32.90^{footnote F2}	$49K
Apr 17, 2026	Stephen Chunping Chang - Officer	Open-market sale	Common Share	3,481^{footnote F1}	$33.90^{footnote F2}	$118K
Apr 17, 2026	Stephen Chunping Chang - Officer	Open-market sale	Common Share	9,911^{footnote F1}	$34.90^{footnote F2}	$346K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 8, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Apr 16, 2026	Bing Xue - Officer	Open-market sale	Common Share	1,832^{footnote F1}	$31.21^{footnote F2}	$57K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Apr 14, 2026	Yifan Liang - Officer	Open-market sale	Common Shares	7,391^{footnote F1}	$29.00^{footnote F2}	$214K
Apr 14, 2026	Yifan Liang - Officer	Open-market sale	Common Shares	7,939^{footnote F1}	$30.00^{footnote F2}	$238K
Apr 14, 2026	Yifan Liang - Officer	Open-market sale	Common Shares	11,187^{footnote F1}	$32.00^{footnote F6}	$358K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 21, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold. Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.0000 to $32.0200, inclusive. The Reporting Person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha… Full note on SEC EDGAR
Apr 14, 2026	Stephen Chunping Chang - Officer	Open-market sale	Common Share	5,594^{footnote F1}	$31.90^{footnote F2}	$178K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 8, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Mar 16, 2026	Wenjun Li - Officer	Tax withholding / forfeiture	Common Share	3,319	$21.43	$71K
Mar 16, 2026	Wenjun Li - Officer	Tax withholding / forfeiture	Common Share	2,288	$21.43	$49K
Mar 16, 2026	Wenjun Li - Officer	Grant or award	Common Share	10,000	$0.00	-
Mar 16, 2026	Mike F. Chang - Director	Tax withholding / forfeiture	Common Shares	14,419	$21.43	$309K
Mar 16, 2026	Mike F. Chang - Director	Grant or award	Common Shares	22,500	$0.00	-
Mar 16, 2026	Wenjun Li - Officer	Grant or award	Common Share	10,000^{footnote F1}	$0.00	-
Mar 16, 2026	Wenjun Li - Officer	Grant or award	Common Share	10,000^{footnote F7}	$0.00	-
Mar 16, 2026	Wenjun Li - Officer	Tax withholding / forfeiture	Common Share	3,272^{footnote F5}	$21.43	$70K
Mar 16, 2026	Wenjun Li - Officer	Tax withholding / forfeiture	Common Share	2,267^{footnote F6}	$21.43	$49K
Footnote F1 (shares): 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. Footnote F5 (shares): 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. Footnote F6 (shares): 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. Footnote F7 (shares): 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… Full note on SEC EDGAR
Mar 16, 2026	Bing Xue - Officer	Open-market sale	Common Share	2,408^{footnote F1}	$21.92^{footnote F2}	$53K
Mar 16, 2026	Bing Xue - Officer	Grant or award	Common Share	15,000^{footnote F6}	$0.00	-
Mar 16, 2026	Bing Xue - Officer	Grant or award	Common Share	15,000^{footnote F9}	$0.00	-
Mar 16, 2026	Bing Xue - Officer	Tax withholding / forfeiture	Common Share	5,598^{footnote F7}	$21.43	$120K
Mar 16, 2026	Bing Xue - Officer	Tax withholding / forfeiture	Common Share	3,584^{footnote F8}	$21.43	$77K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold. Footnote F6 (shares): 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. Footnote F7 (shares): 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. Footnote F8 (shares): 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. Footnote F9 (shares): 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… Full note on SEC EDGAR
Mar 16, 2026	Yifan Liang - Officer	Grant or award	Common Shares	22,500^{footnote F1}	$0.00	-
Mar 16, 2026	Yifan Liang - Officer	Grant or award	Common Shares	22,500^{footnote F7}	$0.00	-
Mar 16, 2026	Yifan Liang - Officer	Tax withholding / forfeiture	Common Shares	6,889^{footnote F5}	$21.43	$148K
Mar 16, 2026	Yifan Liang - Officer	Tax withholding / forfeiture	Common Shares	4,610^{footnote F6}	$21.43	$99K
Footnote F1 (shares): 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. Footnote F5 (shares): 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. Footnote F6 (shares): 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. Footnote F7 (shares): 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… Full note on SEC EDGAR
Mar 16, 2026	Stephen Chunping Chang - Officer	Grant or award	Common Share	67,500^{footnote F1}	$0.00	-
Mar 16, 2026	Stephen Chunping Chang - Officer	Grant or award	Common Share	67,500^{footnote F7}	$0.00	-
Mar 16, 2026	Stephen Chunping Chang - Officer	Tax withholding / forfeiture	Common Share	25,644^{footnote F5}	$21.43	$550K
Mar 16, 2026	Stephen Chunping Chang - Officer	Tax withholding / forfeiture	Common Share	17,839^{footnote F6}	$21.43	$382K
Footnote F1 (shares): 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. Footnote F5 (shares): 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. Footnote F6 (shares): 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. Footnote F7 (shares): 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… Full note on SEC EDGAR
Mar 16, 2026	Mike F. Chang - Director	Grant or award	Common Shares	22,500^{footnote F1}	$0.00	-
Mar 16, 2026	Mike F. Chang - Director	Grant or award	Common Shares	22,500^{footnote F7}	$0.00	-
Mar 16, 2026	Mike F. Chang - Director	Tax withholding / forfeiture	Common Shares	17,984^{footnote F5}	$21.43	$385K
Mar 16, 2026	Mike F. Chang - Director	Tax withholding / forfeiture	Common Shares	9,829^{footnote F6}	$21.43	$211K
Footnote F1 (shares): 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. Footnote F5 (shares): 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. Footnote F6 (shares): 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. Footnote F7 (shares): 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… Full note on SEC EDGAR
Mar 9, 2026	Mike F. Chang - Director	Open-market purchase	Common Shares	33,727	$19.00^{footnote F1}	$641K
Footnote F1 (price): The price reported in Column 4 is the exact price at which all shares were purchased.
Feb 17, 2026	Bing Xue - Officer	Open-market sale	Common Share	2,460^{footnote F1}	$22.33^{footnote F2}	$55K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Jan 15, 2026	Bing Xue - Officer	Open-market sale	Common Share	737^{footnote F1}	$22.43^{footnote F2}	$17K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Dec 15, 2025	Yifan Liang - Officer	Gift	Common Shares	500	$0.00	-
Dec 15, 2025	Bing Xue - Officer	Open-market sale	Common Share	1,845^{footnote F1}	$20.56^{footnote F2}	$38K
Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025. Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Recent AOSL Form 8-K filings

Read AOSL company news

Aug 12, 2026Item 2.02, 9.01

Read the filing on SEC EDGAR

Jul 10, 2026Item 5.02, 9.01

Read the filing on SEC EDGAR

May 12, 2026Item 2.01, 9.01

Read the filing on SEC EDGAR

May 6, 2026Item 2.02, 9.01

Recent AOSL Form 144 notices of proposed sale

An insider files Form 144 before selling restricted or control stock. It announces a planned sale. If the sale goes ahead, it shows up later on a Form 4.

Filed	Filer	Relationship	Shares	Market value	Notice
Jul 16, 2026	-	-	-	-	View on EDGAR
Jun 16, 2026	-	-	-	-

AOSL insider trading FAQ

What is the latest insider trade for AOSL?

ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) had 3 insider filings in the last 90 days, with the most recent on 11 September 2026. The full record for AOSL runs to 58 Form 4 filings, the earliest from 25 October 2024. InsiderAlpha adds new Form 4, Form 144 and 8-K filings as they arrive from SEC EDGAR.

How many insiders are buying AOSL stock?

No insider purchases of AOSL were filed in the last 90 days. 1 purchase is on record for this company.

How many insiders are selling AOSL stock?

No insider sales of AOSL were filed in the last 90 days. 31 sales are on record for this company.

Where can I see AOSL SEC filings (Form 4, 10-K, 10-Q, 8-K)?

This page collects AOSL Form 4 insider transactions, Form 144 sale notices and 8-K filings in one place. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.

More Information Technology companies with insider activity

Recent insider filings

The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.

Sep 11, 2026 - Stephen Chunping Chang view on EDGAR
Sep 11, 2026 - Mike F. Chang view on EDGAR
Aug 14, 2026 - Mike F. Chang view on EDGAR
Jul 21, 2026 - Joshua C. Chien view on EDGAR
Jul 17, 2026 - Bing Xue view on EDGAR
Jul 16, 2026 - Mike F. Chang view on EDGAR
Jun 17, 2026 - Bing Xue view on EDGAR
Jun 3, 2026 - Mike F. Chang view on EDGAR
May 28, 2026 - Mike F. Chang view on EDGAR

Related companies with recent insider activity

Learn more

What the Form 4 transaction codes mean: Grants, option exercises, gifts and tax withholding are not trades on the market. The codes say which is which.
Form 144 vs Form 4: A Form 144 announces a planned sale; the Form 4 reports it after it happens.
Insider activity in Information Technology: Where AOSL's peers are being bought and sold.
Every recent Form 4: The market-wide feed, updated as filings arrive from SEC EDGAR.

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Form 4 transaction type

Transactions

Total value

Bona-fide gift

3,201,894

Traded

Insider

Transaction

Security

Price

Value

Aug 24, 2026

Stephen Chunping Chang - Officer

Gift

Common Share

100,947^{footnote F1}

$0.00

Footnote F1 (shares): On August 24, 2026, the reporting person received 100,947 common shares to the STEPHEN CHUPING CHANG TTEE TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the… Full note on SEC EDGAR

Aug 24, 2026

Mike F. Chang - Director

Gift

Common Shares

100,947^{footnote F1}

$0.00

Footnote F1 (shares): On August 24, 2026, the CHANG Trust gifted 100,947 common shares for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting person remains the beneficial… Full note on SEC EDGAR

Aug 13, 2026

Mike F. Chang - Director

Gift

Common Shares

3,000,000^{footnote F1}

$0.00

Footnote F1 (shares): On August 13, 2026, the reporting person transferred 3,000,000 common shares to the CHANG TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting… Full note on SEC EDGAR

Jul 20, 2026

Joshua C. Chien - Director

Grant or award

Common Share

1,368

$0.00

Jul 16, 2026

Bing Xue - Officer

Open-market sale

Common Share

875^{footnote F1}

$33.99^{footnote F2}

$30K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Jul 13, 2026

Mike F. Chang - Director

Gift

Common Shares

23,754^{footnote F1}

$0.00

Footnote F1 (shares): On July 13, 2026, the reporting person transferred 23,754 common shares to the CHANG TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting… Full note on SEC EDGAR

Jun 16, 2026

Bing Xue - Officer

Open-market sale

Common Share

4,916^{footnote F1}

$47.09^{footnote F2}

$231K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Jun 1, 2026

Mike F. Chang - Director

Gift

Common Shares

30,000

$0.00

May 26, 2026

Mike F. Chang - Director

Gift

Common Shares

39,780^{footnote F1}

$0.00

Footnote F1 (shares): On May 26, 2026, the reporting person transferred 39,780 common shares to the CHANG TRUST for no consideration. The reporting person is the trustee of the trust, and members of the reporting person's immediately family are the sole beneficiaries of the trust. The reporting… Full note on SEC EDGAR

May 22, 2026

Mike F. Chang - Director

Gift

Common Shares

736,252

$0.00

May 22, 2026

Claudia Chen - Director

Open-market sale

Common Share

3,844^{footnote F1}

$39.47^{footnote F2}

$152K

May 22, 2026

Claudia Chen - Director

Open-market sale

Common Share

217^{footnote F1}

$40.54^{footnote F3}

$9K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on February 20, 2026.
Footnote F2 (price): 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… Full note on SEC EDGAR
Footnote F3 (price): 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… Full note on SEC EDGAR

May 21, 2026

Stephen Chunping Chang - Officer

Gift

Common Share

2,000

$0.00

May 18, 2026

Bing Xue - Officer

Open-market sale

Common Share

4,916^{footnote F1}

$41.00^{footnote F2}

$202K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Apr 17, 2026

Yifan Liang - Officer

Open-market sale

Common Shares

8,625^{footnote F1}

$35.00^{footnote F2}

$302K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 21, 2025.
Footnote F2 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $35.0000 to $35.0200, inclusive. The Reporting Person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha… Full note on SEC EDGAR

Apr 17, 2026

Stephen Chunping Chang - Officer

Open-market sale

Common Share

1,492^{footnote F1}

$32.90^{footnote F2}

$49K

Apr 17, 2026

Stephen Chunping Chang - Officer

Open-market sale

Common Share

3,481^{footnote F1}

$33.90^{footnote F2}

$118K

Apr 17, 2026

Stephen Chunping Chang - Officer

Open-market sale

Common Share

9,911^{footnote F1}

$34.90^{footnote F2}

$346K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 8, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Apr 16, 2026

Bing Xue - Officer

Open-market sale

Common Share

1,832^{footnote F1}

$31.21^{footnote F2}

$57K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Apr 14, 2026

Yifan Liang - Officer

Open-market sale

Common Shares

7,391^{footnote F1}

$29.00^{footnote F2}

$214K

Apr 14, 2026

Yifan Liang - Officer

Open-market sale

Common Shares

7,939^{footnote F1}

$30.00^{footnote F2}

$238K

Apr 14, 2026

Yifan Liang - Officer

Open-market sale

Common Shares

11,187^{footnote F1}

$32.00^{footnote F6}

$358K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 21, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Footnote F6 (price): The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $32.0000 to $32.0200, inclusive. The Reporting Person undertakes to provide to Alpha and Omega Semiconductor Limited, any security holder of Alpha… Full note on SEC EDGAR

Apr 14, 2026

Stephen Chunping Chang - Officer

Open-market sale

Common Share

5,594^{footnote F1}

$31.90^{footnote F2}

$178K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on September 8, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Mar 16, 2026

Wenjun Li - Officer

Tax withholding / forfeiture

Common Share

3,319

$21.43

$71K

Mar 16, 2026

Wenjun Li - Officer

Tax withholding / forfeiture

Common Share

2,288

$21.43

$49K

Mar 16, 2026

Wenjun Li - Officer

Grant or award

Common Share

10,000

$0.00

Mar 16, 2026

Mike F. Chang - Director

Tax withholding / forfeiture

Common Shares

14,419

$21.43

$309K

Mar 16, 2026

Mike F. Chang - Director

Grant or award

Common Shares

22,500

$0.00

Mar 16, 2026

Wenjun Li - Officer

Grant or award

Common Share

10,000^{footnote F1}

$0.00

Mar 16, 2026

Wenjun Li - Officer

Grant or award

Common Share

10,000^{footnote F7}

$0.00

Mar 16, 2026

Wenjun Li - Officer

Tax withholding / forfeiture

Common Share

3,272^{footnote F5}

$21.43

$70K

Mar 16, 2026

Wenjun Li - Officer

Tax withholding / forfeiture

Common Share

2,267^{footnote F6}

$21.43

$49K

Footnote F1 (shares): 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.
Footnote F5 (shares): 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.
Footnote F6 (shares): 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.
Footnote F7 (shares): 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… Full note on SEC EDGAR

Mar 16, 2026

Bing Xue - Officer

Open-market sale

Common Share

2,408^{footnote F1}

$21.92^{footnote F2}

$53K

Mar 16, 2026

Bing Xue - Officer

Grant or award

Common Share

15,000^{footnote F6}

$0.00

Mar 16, 2026

Bing Xue - Officer

Grant or award

Common Share

15,000^{footnote F9}

$0.00

Mar 16, 2026

Bing Xue - Officer

Tax withholding / forfeiture

Common Share

5,598^{footnote F7}

$21.43

$120K

Mar 16, 2026

Bing Xue - Officer

Tax withholding / forfeiture

Common Share

3,584^{footnote F8}

$21.43

$77K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.
Footnote F6 (shares): 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.
Footnote F7 (shares): 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.
Footnote F8 (shares): 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.
Footnote F9 (shares): 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… Full note on SEC EDGAR

Mar 16, 2026

Yifan Liang - Officer

Grant or award

Common Shares

22,500^{footnote F1}

$0.00

Mar 16, 2026

Yifan Liang - Officer

Grant or award

Common Shares

22,500^{footnote F7}

$0.00

Mar 16, 2026

Yifan Liang - Officer

Tax withholding / forfeiture

Common Shares

6,889^{footnote F5}

$21.43

$148K

Mar 16, 2026

Yifan Liang - Officer

Tax withholding / forfeiture

Common Shares

4,610^{footnote F6}

$21.43

$99K

Footnote F1 (shares): 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.
Footnote F5 (shares): 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.
Footnote F6 (shares): 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.
Footnote F7 (shares): 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… Full note on SEC EDGAR

Mar 16, 2026

Stephen Chunping Chang - Officer

Grant or award

Common Share

67,500^{footnote F1}

$0.00

Mar 16, 2026

Stephen Chunping Chang - Officer

Grant or award

Common Share

67,500^{footnote F7}

$0.00

Mar 16, 2026

Stephen Chunping Chang - Officer

Tax withholding / forfeiture

Common Share

25,644^{footnote F5}

$21.43

$550K

Mar 16, 2026

Stephen Chunping Chang - Officer

Tax withholding / forfeiture

Common Share

17,839^{footnote F6}

$21.43

$382K

Footnote F1 (shares): 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.
Footnote F5 (shares): 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.
Footnote F6 (shares): 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.
Footnote F7 (shares): 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… Full note on SEC EDGAR

Mar 16, 2026

Mike F. Chang - Director

Grant or award

Common Shares

22,500^{footnote F1}

$0.00

Mar 16, 2026

Mike F. Chang - Director

Grant or award

Common Shares

22,500^{footnote F7}

$0.00

Mar 16, 2026

Mike F. Chang - Director

Tax withholding / forfeiture

Common Shares

17,984^{footnote F5}

$21.43

$385K

Mar 16, 2026

Mike F. Chang - Director

Tax withholding / forfeiture

Common Shares

9,829^{footnote F6}

$21.43

$211K

Footnote F1 (shares): 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.
Footnote F5 (shares): 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.
Footnote F6 (shares): 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.
Footnote F7 (shares): 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… Full note on SEC EDGAR

Mar 9, 2026

Mike F. Chang - Director

Open-market purchase

Common Shares

33,727

$19.00^{footnote F1}

$641K

Footnote F1 (price): The price reported in Column 4 is the exact price at which all shares were purchased.

Feb 17, 2026

Bing Xue - Officer

Open-market sale

Common Share

2,460^{footnote F1}

$22.33^{footnote F2}

$55K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Jan 15, 2026

Bing Xue - Officer

Open-market sale

Common Share

737^{footnote F1}

$22.43^{footnote F2}

$17K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Dec 15, 2025

Yifan Liang - Officer

Gift

Common Shares

500

$0.00

Dec 15, 2025

Bing Xue - Officer

Open-market sale

Common Share

1,845^{footnote F1}

$20.56^{footnote F2}

$38K

Footnote F1 (shares): The sales were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on August 14, 2025.
Footnote F2 (price): The price reported in Column 4 is the exact price at which all shares were sold.

Filed

Filer

Relationship

Market value

Notice

Jul 16, 2026

View on EDGAR

Jun 16, 2026