Chang Mike F
SEC Form 4 insider trading activity
Chang Mike F has filed 10 SEC Form 4 filings (14 transaction rows) across 1 company, with disclosures dating back to 2025. 10 of those filings fall inside the rolling window. Most recent filing: Aug 14, 2026.
On the most recent filing, Chang Mike F is listed as Director, 10% Owner at ALPHA & OMEGA SEMICONDUCTOR Ltd. Inside the rolling window, Chang Mike F reported 1 open-market purchase totaling $641K in AOSL and no open-market sales.
Companies traded
Other insiders at AOSL
Insider Buying
$641K
reported purchases (SEC code P)
Insider Selling
$0
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Chang Mike F made?
Chang Mike F has filed 10 SEC Form 4 filings (14 transaction rows) across 1 company since 2025.
Which companies does Chang Mike F trade?
Chang Mike F has filed SEC Form 4 disclosures for 1 company, including AOSL.
When was Chang Mike F's most recent SEC Form 4 filing?
Chang Mike F's most recent SEC Form 4 filing on Tracefour is dated Aug 14, 2026.
What is Chang Mike F's total buy and sell value in the current window?
Inside the rolling retention window, Chang Mike F bought $641K and sold $0 based on SEC Form 4 filings.
What was Chang Mike F's largest disclosed transaction?
The largest disclosed transaction in the current window is a purchase of 33,727 AOSL shares on 2026-03-09, worth $641K, per SEC Form 4 filings.