John Tseng-Chung Lee
President & CEO, Director · MKS INC
IndividualSelling only1 10b5-1 trade
- 2024
- Aug 17, 2026
- 8
Other insiders active in the same stocks
Insiders who reported open-market trades in the last 12 months at the companies John Tseng-Chung Lee 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.
- Gerald G. Colella - $11.74M in MKSI purchases and sales in the last 12 months
- David Philip Henry - $3.24M in MKSI purchases and sales in the last 12 months
- Ramakumar Mayampurath - $2.78M in MKSI purchases and sales in the last 12 months
- James Alan Schreiner - $2.60M in MKSI purchases and sales in the last 12 months
- Kathleen Flaherty Burke - $2.46M in MKSI purchases and sales in the last 12 months
- Eric Robert Taranto - $2.28M in MKSI purchases and sales in the last 12 months
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Frequently asked questions
Who is John Tseng-Chung Lee?
John Tseng-Chung Lee is a corporate insider, tracked as President & CEO, Director of MKS INC (MKSI). InsiderAlpha holds 8 primary Form 4 filings for them, the earliest from 2024, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has John Tseng-Chung Lee submitted recently?
1 primary Form 4 filing in the last 90 days, covering 1 company.
Has John Tseng-Chung Lee been buying or selling stock?
Recorded transactions: 0 open-market purchases and 5 open-market sales ($10.72M) across all tracked filings.
