CHANG KUO WEI HERBERT
SEC Form 4 insider trading activity
CHANG KUO WEI HERBERT has filed 5 SEC Form 4 filings (5 transaction rows) across 1 company, with disclosures dating back to 2025. 5 of those filings fall inside the rolling window. Most recent filing: Aug 25, 2026.
On the most recent filing, CHANG KUO WEI HERBERT is listed as Director at MONOLITHIC POWER SYSTEMS, INC. Inside the rolling window, CHANG KUO WEI HERBERT reported no open-market purchases and 4 open-market sales totaling $312K in MPWR. The largest disclosed transaction in the window is a sale of 100 MPWR shares on Nov 25, 2025, worth $90K.
Companies traded
Other insiders at MPWR
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$312K
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has CHANG KUO WEI HERBERT made?
CHANG KUO WEI HERBERT has filed 5 SEC Form 4 filings (5 transaction rows) across 1 company since 2025.
Which companies does CHANG KUO WEI HERBERT trade?
CHANG KUO WEI HERBERT has filed SEC Form 4 disclosures for 1 company, including MPWR.
When was CHANG KUO WEI HERBERT's most recent SEC Form 4 filing?
CHANG KUO WEI HERBERT's most recent SEC Form 4 filing on Tracefour is dated Aug 25, 2026.
What is CHANG KUO WEI HERBERT's total buy and sell value in the current window?
Inside the rolling retention window, CHANG KUO WEI HERBERT bought $0 and sold $312K based on SEC Form 4 filings.
What was CHANG KUO WEI HERBERT's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 100 MPWR shares on 2025-11-25, worth $90K, per SEC Form 4 filings.