InsidersTradesSigma
Total declarations
Company
▲ Purchases (0 ops.)
▼ Sales (0 ops.)
Insider track record
CEODisclosed buys
0
Disclosed sells
0
T+90 hit rate
0%
T+90 mean return
-30.9%
Across 3 buy signals with a settled T+90 return. Return basis: close on the day after publication.
Signal history
Explore the detailed record of transactions filed by Chang Stephen Chunping, Président. Director active across 1 company, notably ALPHA & OMEGA SEMICONDUCTOR Ltd. Cumulatively, 13 disclosures have been recorded. Activity tracked since 18 March 2021. The latest transaction was disclosed on 21 May 2026 (Don). Regulator: SEC (Form 4). The full history is openly available.
Declarations13 total
2,000 shares0Common ShareSEC:0001628280-26-038057:0
67,500 shares0Common ShareSEC:0001387467-25-000032:0
●
19,996 shares@ US$27.6142.9% of flowCommon ShareSEC:0001387467-25-000032:1
●
11,013 shares@ US$27.6123.6% of flowCommon ShareSEC:0001387467-25-000032:2
57,500 shares0Common ShareSEC:0001387467-25-000032:3
●
11,224 shares@ US$36.5433.5% of flowCommon ShareSEC:0001387467-25-000010:0
2,000 shares0Common ShareSEC:0001387467-24-000110:0
57,500 shares0Common ShareSEC:0001387467-24-000040:0
90,000 shares0Common ShareSEC:0001387467-24-000012:0
57,500 shares0Common ShareSEC:0001387467-23-000028:0
25,000 shares0Common ShareSEC:0001387467-22-000030:0
1,000 shares0Common ShareSEC:0001387467-21-000050
1,000 shares0Common ShareSEC:0001387467-21-000050:0
13 of 13 declarations
About Chang Stephen Chunping
Stephen Chunping Chang is the President of ALPHA & OMEGA SEMICONDUCTOR Ltd. He is responsible for the strategic direction of the company, overseeing its operations and growth initiatives. His expertise in the semiconductor sector is essential for the company's development.
