SEC CIK 1414656

Lee John Tseng-Chung

Reported ownership across 2 companies, sourced from SEC Form 4 filings and updated daily.

Current Positions

CompanyShares OwnedAs Of
MKSIview stock →134,776.2672026-08-14
CGNXview stock →24,8202026-02-21

Position History — MKSI

Reported shares owned immediately after each Form 4 transaction, over time.

057,129114,257171,3862026-022026-022026-022026-022026-052026-08

Recent Filings — MKSI

DateActivitySharesPriceOwned After
2026-08-14Open-market sale10,000$302.01134,776.267
2026-05-22Open-market sale10,000$315.48144,696.108
2026-02-20Open-market sale1,890$259.70154,696.108
2026-02-20Open-market sale1,988$257.81156,586.108
2026-02-20Open-market sale12,812$256.93158,574.108
2026-02-20Open-market sale13,310$256.05171,386.108

Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.