Zhou Jeff
SEC Form 4 insider trading activity
Zhou Jeff has filed 3 SEC Form 4 filings (5 transaction rows) across 1 company, with disclosures dating back to 2026. 3 of those filings fall inside the rolling window. Most recent filing: May 27, 2026.
On the most recent filing, Zhou Jeff is listed as Director at MONOLITHIC POWER SYSTEMS INC. Inside the rolling window, Zhou Jeff reported no open-market purchases and 3 open-market sales totaling $3.3M in MPWR. The largest disclosed transaction in the window is a sale of 1,014 MPWR shares on May 5, 2026, worth $1.6M.
Companies traded
Other insiders at MPWR
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$3.3M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Zhou Jeff made?
Zhou Jeff has filed 3 SEC Form 4 filings (5 transaction rows) across 1 company since 2026.
Which companies does Zhou Jeff trade?
Zhou Jeff has filed SEC Form 4 disclosures for 1 company, including MPWR.
When was Zhou Jeff's most recent SEC Form 4 filing?
Zhou Jeff's most recent SEC Form 4 filing on Tracefour is dated May 27, 2026.
What is Zhou Jeff's total buy and sell value in the current window?
Inside the rolling retention window, Zhou Jeff bought $0 and sold $3.3M based on SEC Form 4 filings.
What was Zhou Jeff's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 1,014 MPWR shares on 2026-05-05, worth $1.6M, per SEC Form 4 filings.