AOSL (Alpha and Omega Semiconductor Limited)
Insider Trading Activity
Every open-market purchase and sale reported by AOSL officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-14 | Mike F Chang | Director | G | — | — |
| 2026-07-21 | Joshua C. Chien | Director | A | — | — |
| 2026-07-17 | Bing Xue | EVP-WW Sales & Bus Development | Sell | — | — |
| 2026-07-15 | Mike F Chang | Director | G | — | — |
| 2026-06-17 | Bing Xue | EVP-WW Sales & Bus Development | Sell | — | — |
| 2026-06-03 | Mike F Chang | Director | G | — | — |
| 2026-05-28 | Mike F Chang | Director | G | — | — |
| 2026-05-27 | Mike F Chang | Director | G | — | — |
| 2026-05-26 | Stephen Chunping Chang | Chief Executive Officer | G | — | — |
| 2026-05-26 | Claudia Chen | Director | Sell | — | — |
| 2026-05-20 | Bing Xue | EVP-WW Sales & Bus Development | Sell | — | — |
| 2026-04-20 | Bing Xue | EVP-WW Sales & Bus Development | Sell | — | — |
| 2026-04-20 | Yifan Liang | CFO and Corp Secretary | Sell | — | — |
| 2026-04-20 | Stephen Chunping Chang | Chief Executive Officer | Sell | — | — |
| 2026-04-16 | Stephen Chunping Chang | Chief Executive Officer | Sell | — | — |
| 2026-04-16 | Yifan Liang | CFO and Corp Secretary | Sell | — | — |
| 2026-03-25 | Mike F Chang | Director | MIXED | — | — |
| 2026-03-25 | Wenjun Li | Chief Operating Officer | MIXED | — | — |
| 2026-03-18 | Yifan Liang | CFO and Corp Secretary | MIXED | — | — |
| 2026-03-18 | Stephen Chunping Chang | Chief Executive Officer | MIXED | — | — |
| 2026-03-18 | Bing Xue | EVP-WW Sales & Bus Development | MIXED | — | — |
| 2026-03-18 | Mike F Chang | Director | MIXED | — | — |
| 2026-03-18 | Wenjun Li | Chief Operating Officer | MIXED | — | — |
| 2026-03-10 | Mike F Chang | Director | Buy | — | — |
| 2026-02-18 | Bing Xue | EVP-WW Sales & Bus Development | Sell | — | — |
| 2026-01-16 | Bing Xue | EVP-WW Sales & Bus Development | Sell | — | — |
| 2026-01-05 | Wenjun Li | Chief Operating Officer | F | — | — |
| 2026-01-05 | Yifan Liang | CFO and Corp Secretary | F | — | — |
| 2026-01-05 | Bing Xue | EVP-WW Sales & Bus Development | F | — | — |
| 2026-01-05 | Mike F Chang | Director | F | — | — |
| 2026-01-05 | Stephen Chunping Chang | Chief Executive Officer | F | — | — |
| 2025-12-16 | Bing Xue | EVP-WW Sales & Bus Development | Sell | — | — |
| 2025-12-16 | Yifan Liang | CFO and Corp Secretary | G | — | — |
| 2025-11-17 | Bing Xue | EVP-WW Sales & Bus Development | Sell | — | — |
| 2025-11-12 | MICHAEL J SALAMEH | Director | A | — | — |
| 2025-11-12 | Hanqing Li | Director | A | — | — |
| 2025-11-12 | So-Yeon Jeong | Director | A | — | — |
| 2025-11-12 | Lucas S. Chang | Director | A | — | — |
| 2025-11-12 | Claudia Chen | Director | A | — | — |
| 2025-11-12 | Michael L Pfeiffer | Director | A | — | — |
| 2025-11-12 | KING OWYANG | Director | A | — | — |
| 2025-10-21 | Yifan Liang | CFO and Corp Secretary | G | — | — |
| 2025-10-21 | Mike F Chang | Director | G | — | — |
| 2025-09-10 | Stephen Chunping Chang | Chief Executive Officer | G | — | — |
| 2025-09-02 | Bing Xue | EVP-WW Sales & Bus Development | F | — | — |
| 2025-05-13 | Bing Xue | EVP-WW Sales & Bus Development | Sell | — | — |
| 2025-03-18 | Mike F Chang | Chairman of Board | MIXED | — | — |
| 2025-03-18 | Wenjun Li | Chief Operating Officer | MIXED | — | — |
| 2025-03-18 | Stephen Chunping Chang | Chief Executive Officer | MIXED | — | — |
| 2025-03-18 | Bing Xue | EVP-WW Sales & Bus Development | MIXED | — | — |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| — | Director | 4,360,326 | — |
| — | 10%+ Owner | 2,452,475 | — |
| — | 10%+ Owner | 2,410,975 | — |
| — | Chief Executive Officer | 634,070 | — |
| — | CFO and Corp Secretary | 270,003 | — |
| — | Chief Operating Officer | 193,592 | — |
| — | 10%+ Owner | 132,187 | — |
| — | EVP-WW Sales & Bus Development | 122,785 | — |
| — | Chief Operating Officer | 86,558 | — |
| — | Director | 75,256 | — |
| — | Director | 71,294 | — |
| — | Director | 64,824 | — |
| — | Senior VP of Marketing | 46,543 | — |
| — | Director | 30,885 | — |
| — | VP of Power Discrete Product | 28,412 | — |
| — | Director | 28,192 | — |
| — | Director | 27,384 | — |
| — | 10%+ Owner | 27,384 | — |
| — | Director | 24,030 | — |
| — | Director | 23,800 | — |
| — | Director | 23,800 | — |
| — | Chief Technology Officer | 16,768 | — |
| — | Chief Financial Officer | 10,189 | — |
| — | Director | 1,368 | — |
| — | Director | 229 | — |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the AOSL quote page; the site-wide leaderboard is on the insider transactions hub.