All stock lists
ALPHA & OMEGA SEMICONDUCTOR Ltd (NASDAQ:AOSL)
US · Delayed Price · Currency is USD
Technology · Semiconductors
21.97+0.06 (+0.27%)
Insider Score
––Not scored
AOSL Insider Score
Insiders here have filed 3 Form 4s in the last 90 days, but all of them are share awards, grants or other non-market transactions. Those are compensation, not a decision to buy, so they are not scored.
AOSL Stock Insider Trading Activity
AOSL stock’s insider trading shows 5 sales on the open market for an estimated $623.31K by company insiders over the last 6 months.
Not enough price history.
Insider Trading Activity (Form 4 Filings)
An insider trade occurs when an individual that has non-public information about a company buys or sells shares of that company’s stock. Examples of insiders include a company’s executive officers (CEO, CFO, COO), its board of directors, and its major shareholders. Insiders are required to submit their trading activity to the SEC through Form 4 filings.
| Insider | Action | Shares | Avg Cost | Total | Δ Holdings | Held After | Date | Grade | Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| Chang Stephen Chunping CEO | Gift | 100,947 | — | — | New | 100,947 | Aug 24, 2026 | — | Form 4 |
| Chang Mike F Director | Gift | 100,947 | — | — | 2.7% | 3,698,839 | Aug 24, 2026 | — | Form 4 |
| Chang Mike F Director | Gift | 3,000,000 | — | — | 84.3% | 560,540 | Aug 13, 2026 | — | Form 4 |
| Chien Joshua C. Director | Award | 1,368 | — | — | New | 1,368 | Jul 20, 2026 | — | Form 4 |
| Xue Bing Other | Sell | 875 | $33.99 | $29.74K | 0.7% | 122,785 | Jul 16, 2026 | — | Form 4 |
| Chang Mike F Director | Gift | 23,754 | — | — | 0.7% | 3,560,540 | Jul 13, 2026 | — | Form 4 |
| Xue Bing Other | Sell | 4,916 | $47.09 | $231.49K | 3.8% | 123,660 | Jun 16, 2026 | — | Form 4 |
| Chang Mike F Director | Gift | 30,000 | — | — | 0.8% | 3,584,294 | Jun 1, 2026 | — | Form 4 |
| Chang Mike F Director | Gift | 39,780 | — | — | 1.1% | 3,614,294 | May 26, 2026 | — | Form 4 |
| Chen Claudia Director | Sell | 3,844 | $39.47 | $151.72K | 11.9% | 28,409 | May 22, 2026 | — | Form 4 |
| Chen Claudia Director | Sell | 217 | $40.54 | $8.80K | 0.8% | 28,192 | May 22, 2026 | — | Form 4 |
| Chang Mike F Director | Gift | 736,252 | — | — | 16.8% | 3,654,074 | May 22, 2026 | — | Form 4 |
| Chang Stephen Chunping CEO | Gift | 2,000 | — | — | 0.3% | 634,070 | May 21, 2026 | — | Form 4 |
| Xue Bing Other | Sell | 4,916 | $41.00 | $201.56K | 3.7% | 127,701 | May 18, 2026 | — | Form 4 |
| Liang Yifan CFO | Gift | 300 | — | — | 0.1% | 269,403 | Apr 28, 2026 | — | Form 4 |
| Liang Yifan CFO | Gift | 300 | — | — | 0.1% | 269,703 | Apr 27, 2026 | — | Form 4 |
| Chang Stephen Chunping CEO | Sell | 1,492 | $32.90 | $49.09K | 0.2% | 649,293 | Apr 17, 2026 | — | Form 4 |
| Chang Stephen Chunping CEO | Sell | 9,911 | $34.90 | $345.89K | 1.5% | 635,901 | Apr 17, 2026 | — | Form 4 |
| Chang Stephen Chunping CEO | Sell | 3,481 | $33.90 | $118.01K | 0.5% | 645,812 | Apr 17, 2026 | — | Form 4 |
| Liang Yifan CFO | Sell | 8,625 | $35.00 | $301.88K | 3.1% | 270,003 | Apr 17, 2026 | — | Form 4 |
| Xue Bing Other | Sell | 1,832 | $31.21 | $57.18K | 1.4% | 132,617 | Apr 16, 2026 | — | Form 4 |
| Liang Yifan CFO | Sell | 7,939 | $30.00 | $238.17K | 2.7% | 289,815 | Apr 14, 2026 | — | Form 4 |
| Liang Yifan CFO | Sell | 11,187 | $32.00 | $357.98K | 3.9% | 278,628 | Apr 14, 2026 | — | Form 4 |
| Chang Stephen Chunping CEO | Sell | 5,594 | $31.90 | $178.45K | 0.9% | 650,785 | Apr 14, 2026 | — | Form 4 |
| Liang Yifan CFO | Sell | 7,391 | $29.00 | $214.34K | 2.4% | 297,754 | Apr 14, 2026 | — | Form 4 |
| Xue Bing Other | Tax withheld | 5,598 | $21.43 | $119.97K | 4.4% | 123,033 | Mar 16, 2026 | — | Form 4 |
| Xue Bing Other | Tax withheld | 3,584 | $21.43 | $76.81K | 2.9% | 119,449 | Mar 16, 2026 | — | Form 4 |
| Xue Bing Other | Sell | 2,408 | $21.92 | $52.78K | 2.1% | 113,631 | Mar 16, 2026 | — | Form 4 |
| Xue Bing Other | Award | 15,000 | — | — | 13.2% | 128,631 | Mar 16, 2026 | — | Form 4 |
What these mean— the action is the SEC’s own Form 4 transaction code. Only a buy or a sell is an open-market trade; the rest are transfers, awards and exercises, which is why they carry no price.
- Sell (S) — Open-market or private sale
- Award (A) — Grant or award from the company, not a purchase
- Tax withheld (F) — Shares withheld to pay tax or an exercise price
- Gift (G) — Bona fide gift
Disclaimer — Informational only — not investment advice. Insider transaction data is sourced from SEC Form 4 filings; market data from public feeds and may be delayed. The Insider Score is a proprietary score for research purposes and does not predict future performance. Always do your own research.