Insider Trading & Ownership of John Tseng-Chung Lee

Location: Andover, MA
Summary: The estimated net worth of John Tseng-Chung Lee is at least $50,576,024 dollars as of 24 Feb 2026. John Tseng-Chung Lee is the President & CEO, Director of MKS INC and owns shares of MKS INC (MKSI) stock worth about $49.6M. John Tseng-Chung Lee is the Director of COGNEX CORP and owns shares of COGNEX CORP (CGNX) stock worth about $977.2K.
Signature: John Tseng-Chung Lee
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Ownership of John Tseng-Chung Lee

Symbol	Company	Relationship	Holdings Value	Past Year Net Change	Change %	Report Period
MKSI	MKS INC	President & CEO, Director	$49,598,861	-$7,703,242	-13%	20 Feb 2026
CGNX	COGNEX CORP	Director	$977,163			21 Feb 2026

Sym	Company	Class	Transaction	%	Value $	* Price $	Shares	Shares After	Date	Ownership

* An asterisk sign (*) next to the price indicates that the price is likely invalid.