Hsing Michael
CEO
Hsing Michael has filed 11 SEC Form 4 filings (85 transaction rows) across 1 company, with disclosures dating back to 2025. 11 of those filings fall inside the rolling window. Most recent filing: May 20, 2026.
On the most recent filing, Hsing Michael is listed as CEO at MONOLITHIC POWER SYSTEMS INC. Inside the rolling window, Hsing Michael reported no open-market purchases and 7 open-market sales totaling $314.4M in MPWR. The largest disclosed transaction in the window is a sale of 54,923 MPWR shares on Feb 6, 2026, worth $64.3M.
Companies traded
Other insiders at MPWR
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$314.4M
reported sales (SEC code S)
Companies
1
in the rolling window
Frequently asked questions
How many SEC Form 4 filings has Hsing Michael made?
Hsing Michael has filed 11 SEC Form 4 filings (85 transaction rows) across 1 company since 2025.
Which companies does Hsing Michael trade?
Hsing Michael has filed SEC Form 4 disclosures for 1 company, including MPWR.
When was Hsing Michael's most recent SEC Form 4 filing?
Hsing Michael's most recent SEC Form 4 filing on Tracefour is dated May 20, 2026.
What is Hsing Michael's job title?
On the most recent SEC Form 4 filings tracked by Tracefour, Hsing Michael is listed as CEO.
What is Hsing Michael's total buy and sell value in the current window?
Inside the rolling retention window, Hsing Michael bought $0 and sold $314.4M based on SEC Form 4 filings.
What was Hsing Michael's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 54,923 MPWR shares on 2026-02-06, worth $64.3M, per SEC Form 4 filings.