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

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.

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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