John Tseng-Chung Lee

Insider Reports History

Location
Andover, MA
Signature
John Tseng-Chung Lee
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by John Tseng-Chung Lee:

Form 4 holding President & CEO, Director

MKS INC

Security class
Common Stock
Shares / value
154,696
Estimated value
$40,175,074
Report date
20 Feb 2026
Price
$259.70
Ownership
Direct
Form 4 holding President & CEO, Director

MKS INC

Security class
Restricted Stock Unit
Shares / value
84,828
Estimated value
$9,423,787
Report date
17 Feb 2026
Price
$104.53
Ownership
Direct
Underlying class
Common Stock
Underlying amount
Form 4 holding Director

COGNEX CORP

Security class
Restricted Stock Unit
Shares / value
0
Estimated value
$0
Report date
21 Feb 2026
Price
$39.37
Ownership
Direct
Underlying class
Common Stock
Underlying amount
4,817

Insider Reports Filed by John Tseng-Chung Lee

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