- Home
- Insider Trading Stock Activity
- Lee John Tseng-chung
Stock Insider Trading Activity of Lee John Tseng-chung
Lee John Tseng-Chung
Sell
President & CEO
MKSI Feb 20, 2026
Avg Cost/Share
$257.62
Shares
30,000
Total Value
$7,703,242.04
Owned After
171,386.108
| Insider | Ticker | Relationship | Date | Transaction | Avg Cost | Shares | Total Value | Owned After | SEC Forms |
|---|---|---|---|---|---|---|---|---|---|
| Lee John Tseng-Chung | MKSI | President & CEO | Feb 20, 2026 | Sell | $257.62 | 30,000 | $7,703,242.04 | 171,386.108 |