As of the latest Form 4 filed Jun 17, 2026.
What Alpha and Omega Semiconductor Ltd insiders — officers, directors and 10% owners — have bought and sold in their own stock, straight from their SEC Form 4 filings. Values are shares × the reported transaction price where both are disclosed.
Buys plotted up, sells down; bar height is the disclosed dollar value (shares × reported price). Our Form 4 history is only complete from mid-2026, so early months are sparse — the series fills in as more filings land. Open-market purchases and sales only.
Newest filing first — the 50 most recent filings for AOSL.
| Filed | Trade date | Insider | Transaction | Shares | Price | Value | 10b5-1 | Filing |
|---|---|---|---|---|---|---|---|---|
| 2026-06-17 | 2026-06-16 | Xue Bing EVP-WW Sales & Bus Development | SSale | −4.92K | $47.09 | $231K | Yes (planned) | Form 4 ↗ |
| 2026-06-03 | 2026-06-01 | Chang Mike F Director | GGift | −30.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-28 | 2026-05-26 | Chang Mike F Director | GGift | −39.8K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-27 | 2026-05-22 | Chang Mike F Director | GGift | −736K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | Chen Claudia Director | SSale | −217.00 | $40.54 | $8.80K | Yes (planned) | Form 4 ↗ |
| 2026-05-26 | 2026-05-22 | Chen Claudia, Director | SSale | −3.84K | $39.47 | $152K | Yes (planned) | Form 4 ↗ |
| 2026-05-26 | 2026-05-21 | Chang Stephen Chunping Chief Executive Officer | GGift | −2.00K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-05-20 | 2026-05-18 | Xue Bing EVP-WW Sales & Bus Development | SSale | −4.92K | $41.00 | $202K | Yes (planned) | Form 4 ↗ |
| 2026-04-30 | 2026-04-28 | Liang Yifan CFO and Corp Secretary | GGift | −300.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-30 | 2026-04-27 | Liang Yifan, CFO and Corp Secretary | GGift | −300.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-04-20 | 2026-04-17 | Liang Yifan CFO and Corp Secretary | SSale | −8.63K | $35.00 | $302K | Yes (planned) | Form 4 ↗ |
| 2026-04-20 | 2026-04-17 | Chang Stephen Chunping Chief Executive Officer | SSale | −9.91K | $34.90 | $346K | Yes (planned) | Form 4 ↗ |
| 2026-04-20 | 2026-04-17 | Chang Stephen Chunping, Chief Executive Officer | SSale | −3.48K | $33.90 | $118K | Yes (planned) | Form 4 ↗ |
| 2026-04-20 | 2026-04-17 | Chang Stephen Chunping, Chief Executive Officer | SSale | −1.49K | $32.90 | $49.1K | Yes (planned) | Form 4 ↗ |
| 2026-04-20 | 2026-04-16 | Xue Bing EVP-WW Sales & Bus Development | SSale | −1.83K | $31.21 | $57.2K | Yes (planned) | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Liang Yifan CFO and Corp Secretary | SSale | −11.2K | $32.00 | $358K | Yes (planned) | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Liang Yifan, CFO and Corp Secretary | SSale | −7.94K | $30.00 | $238K | Yes (planned) | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Liang Yifan, CFO and Corp Secretary | SSale | −7.39K | $29.00 | $214K | Yes (planned) | Form 4 ↗ |
| 2026-04-16 | 2026-04-14 | Chang Stephen Chunping Chief Executive Officer | SSale | −5.59K | $31.90 | $178K | Yes (planned) | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Li Wenjun Chief Operating Officer | AAward | +10.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Li Wenjun, Chief Operating Officer | FTax | −2.27K | $21.43 | $48.6K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Li Wenjun, Chief Operating Officer | FTax | −3.27K | $21.43 | $70.1K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Li Wenjun, Chief Operating Officer | AAward | +10.0K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Chang Stephen Chunping Chief Executive Officer | AAward | +67.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Chang Stephen Chunping, Chief Executive Officer | FTax | −17.8K | $21.43 | $382K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Chang Stephen Chunping, Chief Executive Officer | FTax | −25.6K | $21.43 | $550K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Chang Stephen Chunping, Chief Executive Officer | AAward | +67.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Liang Yifan CFO and Corp Secretary | AAward | +22.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Liang Yifan, CFO and Corp Secretary | FTax | −4.61K | $21.43 | $98.8K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Liang Yifan, CFO and Corp Secretary | FTax | −6.89K | $21.43 | $148K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Liang Yifan, CFO and Corp Secretary | AAward | +22.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Chang Mike F Director | AAward | +22.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Chang Mike F, Director | FTax | −9.83K | $21.43 | $211K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Chang Mike F, Director | FTax | −18.0K | $21.43 | $385K | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Chang Mike F, Director | AAward | +22.5K | $0.00 | $0.00 | No | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Xue Bing EVP-WW Sales & Bus Development | AAward | +15.0K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Xue Bing, EVP-WW Sales & Bus Development | FTax | −3.58K | $21.43 | $76.8K | Yes (planned) | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Xue Bing, EVP-WW Sales & Bus Development | FTax | −5.60K | $21.43 | $120K | Yes (planned) | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Xue Bing, EVP-WW Sales & Bus Development | AAward | +15.0K | $0.00 | $0.00 | Yes (planned) | Form 4 ↗ |
| 2026-03-18 | 2026-03-16 | Xue Bing, EVP-WW Sales & Bus Development | SSale | −2.41K | $21.92 | $52.8K | Yes (planned) | Form 4 ↗ |
| 2026-03-10 | 2026-03-09 | Chang Mike F Director | PPurchase | +33.7K | $19.00 | $641K | No | Form 4 ↗ |
| 2026-02-18 | 2026-02-17 | Xue Bing EVP-WW Sales & Bus Development | SSale | −2.46K | $22.33 | $54.9K | Yes (planned) | Form 4 ↗ |
| 2026-01-16 | 2026-01-15 | Xue Bing EVP-WW Sales & Bus Development | SSale | −737.00 | $22.43 | $16.5K | Yes (planned) | Form 4 ↗ |
| 2026-01-05 | 2026-01-02 | Li Wenjun Chief Operating Officer | FTax | −3.16K | $20.66 | $65.2K | No | Form 4 ↗ |
| 2026-01-05 | 2026-01-02 | Xue Bing EVP-WW Sales & Bus Development | FTax | −8.63K | $20.66 | $178K | Yes (planned) | Form 4 ↗ |
| 2026-01-05 | 2026-01-02 | Liang Yifan CFO and Corp Secretary | FTax | −8.63K | $20.66 | $178K | No | Form 4 ↗ |
| 2026-01-05 | 2026-01-02 | Chang Stephen Chunping Chief Executive Officer | FTax | −12.0K | $20.66 | $248K | No | Form 4 ↗ |
| 2026-01-05 | 2026-01-02 | Chang Mike F Director | FTax | −16.7K | $20.66 | $345K | No | Form 4 ↗ |
| 2025-12-16 | 2025-12-15 | Liang Yifan CFO and Corp Secretary | GGift | −500.00 | $0.00 | $0.00 | No | Form 4 ↗ |
| 2025-12-16 | 2025-12-15 | Xue Bing EVP-WW Sales & Bus Development | SSale | −1.84K | $20.56 | $37.9K | Yes (planned) | Form 4 ↗ |
Insiders — a company’s officers, directors and holders of more than 10% of its stock — must report any trade in that stock to the SEC on a Form 4 within two business days. Each row here is one transaction from those filings.
The transaction code tells you what happened: Purchase (P) and Sale (S) are open-market trades — the ones markets watch most; Award (A) is a granted stock or unit, Option exercise (M) converts options into shares, and Gift (G) is a transfer for no consideration. Awards, exercises and gifts are largely compensation or administrative, not a directional bet.
One caveat on sales: many are made under a Rule 10b5-1 plan scheduled months in advance, so a sale is not automatically a bearish signal. Insider activity is a noisy input — read it alongside the filings, not on its own.
See also AOSL’s full analysis or the market-wide insider trading feed. The tabs above jump to AOSL’s other SEC data.
Source: SEC Form 4 filings for AOSL, parsed from EDGAR. Transaction prices are as reported in the filing — SEC public-domain data, not market quotes. Values are shares × reported price where both are disclosed; grants and gifts often carry no price. A delayed record of what insiders reported, not a live position or a recommendation.
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