John Tseng-Chung Lee

Filings by John Tseng-Chung Lee span 2 companies, the busiest being MKS Inc and Cognex Corp. In total, 22 filings cover trades dated from 10 February 2016 to 14 August 2026.

The open-market record consists of 4 sales worth €5.5M, with no purchase. The totals do not cover 2 filings with an undisclosed amount. Outside the open market, there are 1 share grant and 17 option exercises. So far in 2026, the count stands at no purchases and 2 sales.

The record was last updated on 17 August 2026 with an open-market sale (€2.6M) in MKS Inc. The median gap between a trade and its publication by SEC (Form 4) is 2 days. US insiders must file a Form 4 within two business days of a trade. Selling is not necessarily a view on the stock: liquidity needs and diversification are common motives. Every figure here comes from the filings published by SEC (Form 4) and describes the past, not future prices; it is not investment advice.