Alpha and Omega Semiconductor Limited
Organization details
- Legal name
- Alpha and Omega Semiconductor Limited
- Ownership
- Public
- Status
- Active
- Sector (GICS)
- Information Technology
- 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
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
- $2,646,471
- 18 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 | — | — |
Peers
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Questions about Alpha and Omega Semiconductor Limited
Who is the CEO of Alpha and Omega Semiconductor Limited?
Stephen Chunping Chang is Alpha and Omega Semiconductor Limited's Chief Executive Officer.
How many directors are on Alpha and Omega Semiconductor Limited's board?
Alpha and Omega Semiconductor Limited's board has 10 directors: Claudia Chen, Hanqing Li, Joshua C. Chien, King Owyang, Lucas S. Chang, Michael J. Salameh, Michael L. Pfeiffer, Mike F. Chang, So-Yeon Jeong and Stephen Chunping Chang.
Are Alpha and Omega Semiconductor Limited insiders buying or selling shares?
Over the last 12 months, Alpha and Omega Semiconductor Limited insiders bought $640,813 of shares in 1 purchase and sold $2.6 million of shares in 18 sales on the open market, as reported to the SEC on Forms 4 and 5.
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