Alpha & Omega Semiconductor (AOSL) insider trading
13 directors and officers declare holding shares of Alpha & Omega Semiconductor (AOSL), each in their own filing with the SEC. The largest is Mike F. Chang (Director · 10% owner) with 4.3M shares, 14.1% of the company, worth $118.9M at the last close. The most recent move on file: Mike F. Chang sold 100,947 shares on Aug 24, 2026. Of the 13 with a trade on file, 8 last bought and 5 last sold. Purchases and sales are as reported on Forms 3, 4 and 5 — the SEC counts private transactions too, and many large sales follow a plan arranged in advance. Holdings are never added up: two spouses often report the same shares, and a joint filing carries a fund's.
| Insider | Role | Shares | % of company | Value | Last trade on file | Filed |
|---|---|---|---|---|---|---|
| Mike F. Chang | Director · 10% owner | 4.3M | 14.1% | $118.9M | sold 100,947 shares on Aug 24, 2026 | Aug 24, 2026 |
| Stephen Chunping Chang | Chief Executive Officer · Director | 735,017 | 2.4% | $20.5M | bought 100,947 shares on Aug 24, 2026 | Aug 24, 2026 |
| Yifan Liang | CFO and Corp Secretary | 269,403 | 0.89% | $7.5M | sold 600 shares on Apr 27, 2026 | Apr 28, 2026 |
| Bing Xue | EVP-WW Sales & Bus Development | 122,785 | 0.41% | $3.4M | sold 875 shares at $33.99 on Jul 16, 2026 | Jul 16, 2026 |
| Wenjun Li | Chief Operating Officer | 86,558 | 0.29% | $2.4M | sold 5,607 shares at $21.43 on Mar 16, 2026 | Mar 16, 2026 |
| King Owyang | Director | 75,256 | 0.25% | $2.1M | bought 5,681 shares on Nov 11, 2025 | Nov 11, 2025 |
| Michael L. Pfeiffer | Director | 71,294 | 0.24% | $2.0M | bought 5,681 shares on Nov 11, 2025 | Nov 11, 2025 |
| Michael J. Salameh | Director | 64,824 | 0.21% | $1.8M | bought 5,681 shares on Nov 11, 2025 | Nov 11, 2025 |
| Lucas S. Chang | Director | 30,885 | 0.10% | $862,000.35 | bought 5,681 shares on Nov 11, 2025 | Nov 11, 2025 |
| Claudia Chen | Director | 28,192 | 0.09% | $786,838.72 | sold 4,061 shares at $39.47 on May 22, 2026 | May 22, 2026 |
| Hanqing Li | Director | 23,800 | 0.08% | $664,258.00 | bought 5,681 shares on Nov 11, 2025 | Nov 11, 2025 |
| So-Yeon Jeong | Director | 23,800 | 0.08% | $664,258.00 | bought 5,681 shares on Nov 11, 2025 | Nov 11, 2025 |
| Joshua C. Chien | Director | 1,368 | <0.01% | $38,180.88 | bought 1,368 shares on Jul 20, 2026 | Jul 20, 2026 |
Each insider at Alpha & Omega Semiconductor
- Mike F. Chang — Director · 10% owner
- Stephen Chunping Chang — Chief Executive Officer · Director
- Yifan Liang — CFO and Corp Secretary
- Bing Xue — EVP-WW Sales & Bus Development
- Wenjun Li — Chief Operating Officer
- King Owyang — Director
- Michael L. Pfeiffer — Director
- Michael J. Salameh — Director
- Lucas S. Chang — Director
- Claudia Chen — Director
- Hanqing Li — Director
- So-Yeon Jeong — Director
What insiders bought and sold across AI stocks · All filings on sec.gov