Insiders who reported open-market trades in the last 12 months at the companies Kuo Wei Herbert 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.
Michael Hsing - $319.06M in MPWR purchases and sales in the last 12 months
Saria Tseng - $115.23M in MPWR purchases and sales in the last 12 months
Deming Xiao - $76.43M in MPWR purchases and sales in the last 12 months
Maurice Sciammas - $76.13M in MPWR purchases and sales in the last 12 months
Theodore Blegen - $34.63M in MPWR purchases and sales in the last 12 months
Eugen J. Elmiger - $19.02M in MPWR purchases and sales in the last 12 months
More insiders (A-Z)
Browse nearby insider profiles in alphabetical order.
Kuo Wei Herbert Chang is a corporate insider, tracked as Director of MONOLITHIC POWER SYSTEMS, INC. (MPWR). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Kuo Wei Herbert Chang submitted recently?
2 primary Form 4 filings in the last 90 days, covering 1 company.
Has Kuo Wei Herbert Chang been buying or selling stock?
Recorded transactions: 0 open-market purchases and 7 open-market sales ($484K) across all tracked filings.
Kuo Wei Herbert Chang is Director of MONOLITHIC POWER SYSTEMS, INC. (MPWR). 8 SEC Form 4 filings on record going back to 2025, most recently on 25 August 2026. Most recent open-market trade: sold $64K of MPWR on 25 August 2026. Lifetime open-market sales: $484K.
Recent transactions
8
The latest 8 SEC Form 4 transactions reported by Kuo Wei Herbert Chang.
InsiderAlpha's records for Kuo Wei Herbert Chang go back to 2025: 8 primary Form 4 filings, an average of 4.0 per year. No recorded transaction carries a Rule 10b5-1 plan flag. An absent flag does not establish whether a transaction was pre-arranged or discretionary.
