Insiders who reported open-market trades in the last 12 months at the companies Stephen Chunping Chang files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
Yifan Liang - $1.11M in AOSL purchases and sales in the last 12 months
Bing Xue - $716K in AOSL purchases and sales in the last 12 months
Mike F. Chang - $641K in AOSL purchases and sales in the last 12 months
Claudia Chen - $161K in AOSL purchases and sales in the last 12 months
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Stephen Chunping Chang is a corporate insider, tracked as Chief Executive Officer, Director of ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL). InsiderAlpha holds 7 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Stephen Chunping Chang submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has Stephen Chunping Chang been buying or selling stock?
Recorded transactions: 0 open-market purchases and 4 open-market sales ($691K) across all tracked filings.
Stephen Chunping Chang is Chief Executive Officer, Director of ALPHA & OMEGA SEMICONDUCTOR Ltd (AOSL). 7 SEC Form 4 filings on record going back to 2024, most recently on 11 September 2026. Most recent open-market trade: sold $346K of AOSL on 20 April 2026. Lifetime open-market sales: $691K.
Recent transactions
12
The latest 12 SEC Form 4 transactions reported by Stephen Chunping Chang.
InsiderAlpha's records for Stephen Chunping Chang go back to 2024: 7 primary Form 4 filings, an average of 2.3 per year. 4 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
