Lee John Tseng-Chung
- SEC CIK
- 0001414656
In the past year, 3 open-market sale filings worth $13.9M and no purchases.
Current role at each company
- MKSI MKS IncPresident & CEOas of Aug 17, 2026
- CGNX Cognex CorpDirectoras of Feb 24, 2026
Open-market trades in the past year
Open-market purchases (P) and sales (S) filed in the last 365 days, not counting derivative securities or duplicate filings. Values leave out price outliers.
- Bought
- –
- 0 filings
- Sold
- $13.9M
- 3 filings
- Net
- −$13.9M
- Bought minus sold
- Companies
- 1
- With open-market trades
Trades
Every Form 4 that lists Lee John Tseng-Chung as a reporting owner, including filings made jointly with others, grouped by company. Each row adds up one type of transaction in one filing. Only open-market purchases (P) and sales (S) are shown by default.
MKSI MKS Inc
President & CEO3 trades
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Aug 17, 2026 (view filing)10:11 AM ET | Aug 14 | 3 days | Lee John Tseng-ChungPresident & CEO | SSale | −10.0K | $302.01 | −$3.02M | −6.9%134.8K after | 10b5-1 |
| May 26, 2026 (view filing) | May 22 | 4 days | Lee John Tseng-ChungPresident & CEO | SSale | −10.0K | $315.48 | −$3.15M | −6.5%144.7K after | 10b5-1 |
| Feb 23, 2026 (view filing) | Feb 20 | 3 days | Lee John Tseng-ChungPresident & CEO | SSale | −30.0K | $256.77 | −$7.70M | −16.2%154.7K after | 4 lots |