ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL)
$25.46+$0.77 (+3.12%) Latest session
Bing Xue - OfficerBing Xue - OfficerAlpha & Omega Semiconductor Ltd designs, develops and supplies a portfolio of power semiconductors targeting various applications, including personal computers, flat-panel TVs, LED lighting, smartphones, battery packs, consumer and industrial motor controls and power supplies for TVs, computers, servers and telecommunications equipment. It generates revenue mainly from the sale of power semiconductors, consisting of power discretes and power ICs with a presence in Hong Kong, China, South Korea, the United States and Other countries. The company is operates in one operating segment: the design, development and supply of power semiconductor products for computing, consumer electronics, communication and industrial applications.
| Form 4 transaction type | Transactions | Shares | Total value |
|---|---|---|---|
| Open-market sale | 1 | 875 | $30K |
| Grant or award | 1 | 1,368 | |
| Bona-fide gift | 4 | 3,225,648 |
Dollar totals are shown for open-market purchases and sales only. Grants, option exercises, gifts and tax withholding are reported by share count because they are not trades at a market price.
58 Form 4 filings on record, the earliest from Oct 25, 2024, newest first. Filing history page 1 of 2.
| Date | Insider | Transaction | Security | Shares | Price | Value |
|---|---|---|---|---|---|---|
| Stephen Chunping Chang - Officer | Gift | Common Share | 100,947 | $0.00 | - | |
| Mike F. Chang - Director | Gift | Common Shares | 100,947 | $0.00 | - | |
| Mike F. Chang - Director | Gift | Common Shares | 3,000,000 | $0.00 | - | |
| Joshua C. Chien - Director | Grant or award | Common Share | 1,368 | $0.00 | - | |
| Bing Xue - Officer | Open-market sale | Common Share | 875 | $33.99 | $30K | |
| Mike F. Chang - Director | Gift | Common Shares | 23,754 | $0.00 | - | |
| Bing Xue - Officer | Open-market sale | Common Share | 4,916 | $47.09 | $231K | |
| Mike F. Chang - Director | Gift | Common Shares | 30,000 | $0.00 | - | |
| Mike F. Chang - Director | Gift | Common Shares | 39,780 | $0.00 | - | |
| Mike F. Chang - Director | Gift | Common Shares | 736,252 | $0.00 | - | |
| Claudia Chen - Director | Open-market sale | Common Share | 3,844 | $39.47 | $152K | |
| Claudia Chen - Director | Open-market sale | Common Share | 217 | $40.54 | $9K | |
| Stephen Chunping Chang - Officer | Gift | Common Share | 2,000 | $0.00 | - | |
| Bing Xue - Officer | Open-market sale | Common Share | 4,916 | $41.00 | $202K | |
| Yifan Liang - Officer | Open-market sale | Common Shares | 8,625 | $35.00 | $302K | |
| Stephen Chunping Chang - Officer | Open-market sale | Common Share | 1,492 | $32.90 | $49K | |
| Stephen Chunping Chang - Officer | Open-market sale | Common Share | 3,481 | $33.90 | $118K | |
| Stephen Chunping Chang - Officer | Open-market sale | Common Share | 9,911 | $34.90 | $346K | |
| Bing Xue - Officer | Open-market sale | Common Share | 1,832 | $31.21 | $57K | |
| Yifan Liang - Officer | Open-market sale | Common Shares | 7,391 | $29.00 | $214K | |
| Yifan Liang - Officer | Open-market sale | Common Shares | 7,939 | $30.00 | $238K | |
| Yifan Liang - Officer | Open-market sale | Common Shares | 11,187 | $32.00 | $358K | |
| Stephen Chunping Chang - Officer | Open-market sale | Common Share | 5,594 | $31.90 | $178K | |
| Wenjun Li - Officer | Tax withholding / forfeiture | Common Share | 3,319 | $21.43 | $71K | |
| Wenjun Li - Officer | Tax withholding / forfeiture | Common Share | 2,288 | $21.43 | $49K | |
| Wenjun Li - Officer | Grant or award | Common Share | 10,000 | $0.00 | - | |
| Mike F. Chang - Director | Tax withholding / forfeiture | Common Shares | 14,419 | $21.43 | $309K | |
| Mike F. Chang - Director | Grant or award | Common Shares | 22,500 | $0.00 | - | |
| Wenjun Li - Officer | Grant or award | Common Share | 10,000 | $0.00 | - | |
| Wenjun Li - Officer | Grant or award | Common Share | 10,000 | $0.00 | - | |
| Wenjun Li - Officer | Tax withholding / forfeiture | Common Share | 3,272 | $21.43 | $70K | |
| Wenjun Li - Officer | Tax withholding / forfeiture | Common Share | 2,267 | $21.43 | $49K | |
| Bing Xue - Officer | Open-market sale | Common Share | 2,408 | $21.92 | $53K | |
| Bing Xue - Officer | Grant or award | Common Share | 15,000 | $0.00 | - | |
| Bing Xue - Officer | Grant or award | Common Share | 15,000 | $0.00 | - | |
| Bing Xue - Officer | Tax withholding / forfeiture | Common Share | 5,598 | $21.43 | $120K | |
| Bing Xue - Officer | Tax withholding / forfeiture | Common Share | 3,584 | $21.43 | $77K | |
| Yifan Liang - Officer | Grant or award | Common Shares | 22,500 | $0.00 | - | |
| Yifan Liang - Officer | Grant or award | Common Shares | 22,500 | $0.00 | - | |
| Yifan Liang - Officer | Tax withholding / forfeiture | Common Shares | 6,889 | $21.43 | $148K | |
| Yifan Liang - Officer | Tax withholding / forfeiture | Common Shares | 4,610 | $21.43 | $99K | |
| Stephen Chunping Chang - Officer | Grant or award | Common Share | 67,500 | $0.00 | - | |
| Stephen Chunping Chang - Officer | Grant or award | Common Share | 67,500 | $0.00 | - | |
| Stephen Chunping Chang - Officer | Tax withholding / forfeiture | Common Share | 25,644 | $21.43 | $550K | |
| Stephen Chunping Chang - Officer | Tax withholding / forfeiture | Common Share | 17,839 | $21.43 | $382K | |
| Mike F. Chang - Director | Grant or award | Common Shares | 22,500 | $0.00 | - | |
| Mike F. Chang - Director | Grant or award | Common Shares | 22,500 | $0.00 | - | |
| Mike F. Chang - Director | Tax withholding / forfeiture | Common Shares | 17,984 | $21.43 | $385K | |
| Mike F. Chang - Director | Tax withholding / forfeiture | Common Shares | 9,829 | $21.43 | $211K | |
| Mike F. Chang - Director | Open-market purchase | Common Shares | 33,727 | $19.00 | $641K | |
| Bing Xue - Officer | Open-market sale | Common Share | 2,460 | $22.33 | $55K | |
| Bing Xue - Officer | Open-market sale | Common Share | 737 | $22.43 | $17K | |
| Bing Xue - Officer | Open-market sale | Common Share | 1,845 | $20.56 | $38K | |
| Yifan Liang - Officer | Gift | Common Shares | 500 | $0.00 | - |
A Form 144 is notice of an INTENDED sale, not a completed one. It often precedes the Form 4 that reports the trade actually happening.
| Filed | Filer | Relationship | Shares | Market value | Notice |
|---|---|---|---|---|---|
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR | |
| - | - | - | - | View on EDGAR |
ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL) had 6 insider filings in the last 90 days, with the most recent on 2026-09-11. The full record for AOSL runs to 58 Form 4 filings, the earliest from 2024-10-25. InsiderAlpha tracks every Form 4, Form 144, and 8-K filing in real time.
No insider purchases of AOSL were filed in the last 90 days. 1 purchase is on record for this company.
1 insider sale of AOSL was filed in the last 90 days, totaling $30K.
This page tracks AOSL Form 4 insider transactions, Form 144 sale notices, and 8-K material event disclosures in one timeline. Annual 10-K and quarterly 10-Q reports live on the company's SEC EDGAR page.
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Every Form 4 below links to the original document on SEC EDGAR, so the numbers on this page can be checked against the filing they came from.
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