Alpha and Omega Semiconductor Limited
Last updated September 27, 2026
Organization details
- Legal name
- Alpha and Omega Semiconductor Limited
- Ownership
- Public
- Status
- Active
- SIC code
- 3674 — Semiconductors & Related Devices
- Headquarters city
- Sunnyvale
- Headquarters state / province
- California
- Headquarters country
- Bermuda
- Fiscal year end
- June
- Ticker symbol
- AOSL
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001387467
Board of directors
-
Claudia Chen · DirectorSince 2023
-
Hanqing Li · DirectorSince 2023
-
Joshua C. Chien · DirectorSince 2026
-
King Owyang · DirectorSince 2023
-
Lucas S. Chang · DirectorSince 2023
-
Michael J. Salameh · DirectorSince 2023
-
Michael L. Pfeiffer · DirectorSince 2023
-
Mike F. Chang · Director · Chairman of BoardSince 2023
-
So-Yeon Jeong · DirectorSince 2023
-
Stephen Chunping Chang · Director · Chief Executive OfficerSince 2025
Chief executives
Stephen Chunping Chang
· Chief Executive Officer
Dates unknown
Director election results
Annual meeting of November 11, 2025. Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
98.3%
-
98.4%
-
99.0%
-
99.1%
-
99.1%
-
99.2%
-
99.3%
-
99.6%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $640,813
- 1 purchase by 1 insider
- Sold, last 12 months
- $2,679,976
- 19 sales by 4 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Aug 24, 2026 | Mike F. Chang Director, 10% owner | Gift | −100,947 | — | — |
| Aug 24, 2026 | Stephen Chunping Chang Director, Officer (Chief Executive Officer) | Gift | +100,947 | — | — |
| Aug 13, 2026 | Mike F. Chang Director, 10% owner | Gift | −3,000,000 | — | — |
| Jul 20, 2026 | Joshua C. Chien Director | Grant or award | +1,368 | — | — |
| Jul 16, 2026 | Xue Bing Officer (EVP-WW Sales & Bus Development) | Open-market sale | −875 | $33.99 | $29,741 |
| Jul 13, 2026 | Mike F. Chang Director, 10% owner | Gift | −23,754 | — | — |
| Jun 16, 2026 | Xue Bing Officer (EVP-WW Sales & Bus Development) | Open-market sale | −4,916 | $47.09 | $231,494 |
| Jun 1, 2026 | Mike F. Chang Director, 10% owner | Gift | −30,000 | — | — |
| May 26, 2026 | Mike F. Chang Director, 10% owner | Gift | −39,780 | — | — |
| May 22, 2026 | Mike F. Chang Director, 10% owner | Gift | −736,252 | — | — |
| May 22, 2026 | Claudia Chen Director | Open-market sale | −3,844 | $39.47 | $151,723 |
| May 22, 2026 | Claudia Chen Director | Open-market sale | −217 | $40.54 | $8,797 |
| May 21, 2026 | Stephen Chunping Chang Director, Officer (Chief Executive Officer) | Gift | −2,000 | — | — |
| May 18, 2026 | Xue Bing Officer (EVP-WW Sales & Bus Development) | Open-market sale | −4,916 | $41.00 | $201,556 |
| Apr 28, 2026 | Liang Yifan Officer (CFO and Corp Secretary) | Gift | −300 | — | — |
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