Alpha & Omega Semiconductor (AOSL) relationships
Alpha & Omega Semiconductor (AOSL) is connected to 40 named shareholders, 0 other companies and 13 officers and directors, each link from an SEC filing. Its largest named shareholder is Mike F. Chang, with 14.1% of the company (Form 4, Aug 24, 2026).
Largest shareholders of Alpha & Omega Semiconductor
| Holder | % of company | Filing | As of | Accession |
|---|---|---|---|---|
| Mike F. Chang | 14.1% | Form 4 | Aug 24, 2026 | 0001628280-26-061534 |
| BlackRock | 14.1% | 13F | Jun 30, 2026 | 0002012383-26-003238 |
| Vanguard | 7.8% | 13F | Jun 30, 2026 | 0002100121-26-001018 |
| State Street | 7.8% | 13F | Jun 30, 2026 | 0000093751-26-000583 |
| MANUFACTURERS LIFE INSURANCE COMPANY, THE | 4.5% | 13F | Jun 30, 2026 | 0001145443-26-000103 |
| Dimensional | 4.4% | 13F | Jun 30, 2026 | 0000354204-26-000866 |
| Two Sigma | 3.1% | 13F | Jun 30, 2026 | 0000899140-26-000855 |
| Fidelity (FMR) | 2.6% | 13F | Jun 30, 2026 | 0000315066-26-002260 |
| Stephen Chunping Chang | 2.4% | Form 4 | Aug 24, 2026 | 0001628280-26-061540 |
| Geode Capital | 2.2% | 13F | Jun 30, 2026 | 0001214717-26-000008 |
| Connor, Clark & Lunn Investment Management Ltd. | 2.1% | 13F | Jun 30, 2026 | 0001596800-26-000012 |
| WEBER CAPITAL MANAGEMENT LLC /ADV | 1.8% | 13F | Sep 30, 2026 | 0001941040-26-000751 |
| Wellington | 1.4% | 13F | Jun 30, 2026 | 0000902219-26-000311 |
| Charles Schwab | 1.3% | 13F | Jun 30, 2026 | 0001752724-26-000057 |
| ACADIAN ASSET MANAGEMENT LLC | 1.1% | 13F | Jun 30, 2026 | 0001140361-26-032657 |
Officers and directors of Alpha & Omega Semiconductor
- Mike F. Chang — Director · 10% owner (Form 4, Sep 11, 2026)
- Stephen Chunping Chang — Chief Executive Officer · Director (Form 4, Sep 11, 2026)
- Yifan Liang — CFO and Corp Secretary (Form 4, Apr 30, 2026)
- Bing Xue — EVP-WW Sales & Bus Development (Form 4, Jul 17, 2026)
- Wenjun Li — Chief Operating Officer (Form 4/A, Mar 25, 2026)
- King Owyang — Director (Form 4, Nov 12, 2025)
- Michael L. Pfeiffer — Director (Form 4, Nov 12, 2025)
- Michael J. Salameh — Director (Form 4, Nov 12, 2025)
- Lucas S. Chang — Director (Form 4, Nov 12, 2025)
- Claudia Chen — Director (Form 4, May 26, 2026)
- Hanqing Li — Director (Form 4, Nov 12, 2025)
- So-Yeon Jeong — Director (Form 4, Nov 12, 2025)
- Joshua C. Chien — Director (Form 4, Jul 21, 2026)
Map of Alpha & Omega Semiconductor's relationships · Who owns Alpha & Omega Semiconductor