ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)
Data as of , from SEC Form 4 filings.
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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.
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)
3458 Form 4 filings on record, the earliest from Oct 25, 2024, newest first. Filing history page 2 of 2.
| Traded | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
 Bing Xue - Officer | Open-market sale | Common Share | 1,845 footnote F1 | $18.16 footnote F2 | $34K | |
| ||||||
| Hanqing Li - Director | Grant or award | Common Share | 5,681 footnote F1 | $0.00 | - | |
| ||||||
| So-Yeon Jeong - Director | Grant or award | Common Share | 5,681 footnote F1 | $0.00 | - | |
| ||||||
| Michael L. Pfeiffer - Director | Grant or award | Common Shares | 5,681 footnote F1 | $0.00 | - | |
| ||||||
| Lucas S. Chang - Director | Grant or award | Common Share | 5,681 footnote F1 | $0.00 | - | |
| ||||||
| Michael J. Salameh - Director | Grant or award | Common Shares | 5,681 footnote F1 | $0.00 | - | |
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| Claudia Chen - Director | Grant or award | Common Share | 5,681 footnote F1 | $0.00 | - | |
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| King Owyang - Director | Grant or award | Common Shares | 5,681 footnote F1 | $0.00 | - | |
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| Mike F. Chang - Director | Gift | Common Shares | 40,000 | $0.00 | - | |
| Yifan Liang - Officer | Gift | Common Shares | 300 | $0.00 | - | |
| Stephen Chunping Chang - Officer | Gift | Common Share | 2,100 | $0.00 | - | |
| Bing Xue - Officer | Tax withholding / forfeiture | Common Share | 508 | $26.50 | $13K | |
| Bing Xue - Officer | Open-market sale | Common Share | 1,883 | $47.38 | $89K | |
| Yifan Liang - Officer | Open-market sale | Common Shares | 3,877 | $47.56 | $184K | |
| Yifan Liang - Officer | Open-market sale | Common Shares | 9,247 | $48.06 | $444K | |
| Yifan Liang - Officer | Open-market sale | Common Shares | 12,791 | $50.05 | $640K | |
| Yifan Liang - Officer | Open-market sale | Common Shares | 5,089 | $50.44 | $257K | |
| Claudia Chen - Director | Open-market sale | Common Share | 2,586 | $50.27 | $130K | |
| Claudia Chen - Director | Open-market sale | Common Share | 1,200 | $51.63 | $62K | |
| Claudia Chen - Director | Open-market sale | Common Share | 1,837 | $52.44 | $96K | |
| Mike F. Chang - Officer | Gift | Common Shares | 30,000 | $0.00 | - | |
| Lucas S. Chang - Director | Open-market sale | Common Share | 7,446 | $41.08 | $306K | |
| Lucas S. Chang - Director | Open-market sale | Common Share | 5,051 | $42.02 | $212K | |
| Bing Xue - Officer | Open-market sale | Common Share | 875 | $41.00 | $36K | |
| Yifan Liang - Officer | Gift | Common Shares | 350 | $0.00 | - | |
| Stephen Chunping Chang - Officer | Gift | Common Share | 2,000 | $0.00 | - | |
| Lucas S. Chang - Director | Grant or award | Common Share | 4,456 | $0.00 | - | |
| Claudia Chen - Director | Grant or award | Common Share | 4,456 | $0.00 | - | |
| Michael L. Pfeiffer - Director | Grant or award | Common Shares | 4,456 | $0.00 | - | |
| So-Yeon Jeong - Director | Grant or award | Common Share | 4,456 | $0.00 | - | |
| Hanqing Li - Director | Grant or award | Common Share | 4,456 | $0.00 | - | |
| King Owyang - Director | Grant or award | Common Shares | 4,456 | $0.00 | - | |
| Michael J. Salameh - Director | Grant or award | Common Shares | 4,456 | $0.00 | - | |
| Wenjun Li - Officer | Open-market sale | Common Share | 2,183 | $35.49 | $77K | |
Item 2.02, 9.01
Item 5.02, 9.01
Item 2.01, 9.01
Item 2.02, 9.01
Recent AOSL Form 144 notices of proposed sale
3An 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 |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - |
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
10The EDGAR links open each original Form 4, so you can check any number on this page against the filing it came from.
- - Stephen Chunping Chang view on EDGAR
- - Mike F. Chang view on EDGAR
- - Mike F. Chang view on EDGAR
- - Joshua C. Chien view on EDGAR
- - Bing Xue view on EDGAR
- - Mike F. Chang view on EDGAR
- - Bing Xue view on EDGAR
- - Mike F. Chang view on EDGAR
- - 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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