Time on boards
- Boards served
- 2
- Current seats
- 2
- Board service
- 8 years
- Director since
- 2023
8 years of board service in total across 2 boards, counting each seat separately. Longest: MKS Inc., 3 years.
Chief executive roles
Shareholder support
Support is votes for as a share of votes for and against (or withheld). Below 80% is a clear protest.
-
MKS Inc. May 12, 202599.4%
-
Cognex Corporation April 30, 202591.9%
-
Cognex Corporation May 3, 202398.2%
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
| Date | Company | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Oct 30, 2026 | MKS Inc. | Option exercise | +1,479 | — | — |
| Oct 30, 2026 | MKS Inc. | Option exercise | +679 | — | — |
| Oct 30, 2026 | MKS Inc. | Shares withheld for tax | −2,157 | $202.04 | $435,890 |
| Aug 14, 2026 | MKS Inc. | Open-market sale | −10,000 | $302.01 | $3,020,100 |
| May 22, 2026 | MKS Inc. | Open-market sale | −10,000 | $315.48 | $3,154,800 |
| Feb 21, 2026 | Cognex Corporation | Option exercise | +2,913 | — | — |
| Feb 20, 2026 | MKS Inc. | Open-market sale | −13,310 | $256.05 | $3,408,026 |
| Feb 20, 2026 | MKS Inc. | Open-market sale | −12,812 | $256.93 | $3,291,787 |
| Feb 20, 2026 | MKS Inc. | Open-market sale | −1,988 | $257.81 | $512,526 |
| Feb 20, 2026 | MKS Inc. | Open-market sale | −1,890 | $259.70 | $490,833 |
| Feb 18, 2026 | Cognex Corporation | Option exercise | +8,324 | — | — |
| Feb 17, 2026 | MKS Inc. | Option exercise | +22,088 | — | — |
| Feb 17, 2026 | MKS Inc. | Option exercise | +7,654 | — | — |
| Feb 17, 2026 | MKS Inc. | Option exercise | +3,859 | — | — |
| Feb 17, 2026 | MKS Inc. | Option exercise | +7,208 | — | — |
Questions about John Tseng-Chung Lee
What boards is John Tseng-Chung Lee on?
John Tseng-Chung Lee sits on the boards of Cognex Corporation and MKS Inc.
What company is John Tseng-Chung Lee the CEO of?
John Tseng-Chung Lee is President & CEO of MKS Inc.
How long has John Tseng-Chung Lee served on boards?
Our records show at least 8 years of board service across 2 boards, the earliest from 2023.
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