Skip to Main Content
Insider Trading

John Tseng-Chung Lee Net Worth

Track Major Insider Updates On X/Twitter

Last Updated: 4 days, 4 hours ago

John Tseng-Chung Lee has an estimated net worth of at least $15.5 million*, as of Aug. 27, 2025. They own 147,117 shares of MKSI stock.

John Tseng-Chung Lee $MKSI SEC Form 4 Insider Trading

John Tseng-Chung Lee has filed a total of 0 insider trades in $MKSI since 2021. We estimate that they now own 147,117 shares of $MKSI, worth an estimated $15.5 million.



Insider Trading at $MKSI

There have been a total of 50 insider trades reported at $MKSI since 2021, with 3,750 shares purchased and 4.1 million shares sold. The most active insider traders in $MKSI stock have been Seth H Bagshaw, Kathleen Flaherty Burke, and David Philip Henry. The most recent trade was a sale of 300 shares reported by Jacqueline F Moloney (None), made on Aug 01, 2025.



History of Insider Stock Trades by John Tseng-Chung Lee

Company Ticker Purchase / Sale Shares Date Disclosed (EST)
No Trades Available - - - -




$MKSI Executives and Stock Owners with Insider Trades



*This is only based off of information found in SEC filings, and may not reflect actual net worth. There may also be inaccuracies due to privately holdings filing errors, parsing errors, accidental double-counting of shares, incorrect classification of indirectly owned shares, sales prior to dataset start date, or any other number of issues.