PAGEInsider
| Ticker | Owner | Relationship | Date | Transaction | Cost | #Shares | Value ($) | #Shares Total | SEC Form 4 |
|---|---|---|---|---|---|---|---|---|---|
| MKSI | Lee John Tseng-Chung | President & CEO | May 22 '26 | Sale | 315.48 | 10,000 | 3,154,800 | 144,696 | May 26 |
| CGNX | Lee John Tseng-Chung | Director | Feb 21 '26 | Option Exercise | 0.00 | 2,913 | 0 | 24,820 | Feb 24 |
| MKSI | Lee John Tseng-Chung | President & CEO | Feb 20 '26 | Sale | 256.77 | 30,000 | 7,703,242 | 154,696 | Feb 23 |
| CGNX | Lee John Tseng-Chung | Director | Feb 18 '26 | Option Exercise | 0.00 | 8,324 | 0 | 21,907 | Feb 19 |
| MKSI | Lee John Tseng-Chung | President & CEO | Feb 17 '26 | Option Exercise | 0.00 | 69,889 | 0 | 217,244 | Feb 18 |
| MKSI | Lee John Tseng-Chung | President & CEO | Oct 31 '25 | Option Exercise | 0.00 | 2,003 | 0 | 149,273 | Nov 04 |
| CGNX | Lee John Tseng-Chung | Director | May 09 '25 | Option Exercise | 0.00 | 1,848 | 0 | 13,583 | May 12 |
| CGNX | Lee John Tseng-Chung | Director | Feb 21 '25 | Option Exercise | 0.00 | 1,747 | 0 | 11,735 | Feb 24 |
| CGNX | Lee John Tseng-Chung | Director | Feb 20 '25 | Option Exercise | 0.00 | 6,973 | 0 | 9,988 | Feb 24 |
| MKSI | Lee John Tseng-Chung | President & CEO | Feb 18 '25 | Option Exercise | 0.00 | 61,760 | 0 | 174,449 | Feb 19 |
| MKSI | Lee John Tseng-Chung | President & CEO | Dec 06 '24 | Option Exercise | 0.00 | 2,994 | 0 | 115,683 | Dec 10 |
| CGNX | Lee John Tseng-Chung | Director | May 09 '24 | Option Exercise | 0.00 | 1,109 | 0 | 3,015 | May 10 |
| CGNX | Lee John Tseng-Chung | Director | Feb 21 '24 | Option Exercise | 0.00 | 1,166 | 0 | 1,906 | Feb 22 |
| MKSI | Lee John Tseng-Chung | President & CEO | Feb 15 '24 | Option Exercise | 0.00 | 64,534 | 0 | 142,672 | Feb 16 |
| MKSI | Lee John Tseng-Chung | President & CEO | Dec 01 '23 | Option Exercise | 0.00 | 3,275 | 0 | 81,414 | Dec 05 |
| CGNX | Lee John Tseng-Chung | Director | May 09 '23 | Option Exercise | 0.00 | 740 | 0 | 740 | May 11 |