Insiders / Lee John Tseng-Chung / Activity
Activity — Lee John Tseng-Chung
25 moves.
| Date | Action | Company | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|
| Feb 17, 2026 | Other | MKSI MKS Inc Common Stock | $8.49M | -33K -14.98% | 184,696 0.27% of shares | low |
| Feb 20, 2026 | Sell | MKSI MKS Inc Common Stock | $3.41M | -13K -7.21% | 171,386 0.25% of shares | medium |
| Feb 20, 2026 | Sell | MKSI MKS Inc Common Stock | $3.29M | -13K -7.48% | 158,574 0.23% of shares | medium |
| May 22, 2026 | Sell | MKSI MKS Inc Common Stock | $3.15M | -10K -6.46% | 144,696 0.21% of shares | medium |
| Feb 20, 2026 | Sell | MKSI MKS Inc Common Stock | $512.5K | -2K -1.25% | 156,586 0.23% of shares | medium |
| Feb 20, 2026 | Sell | MKSI MKS Inc Common Stock | $490.8K | -2K -1.21% | 154,696 0.23% of shares | medium |
| Feb 21, 2026 | Exercise | CGNX Cognex Corp Common Stock | $0 | +3K +13.30% | 24,820 0.01% of shares | low |
| Feb 18, 2026 | Exercise | CGNX Cognex Corp Common Stock | $0 | +8K +61.28% | 21,907 0.01% of shares | low |
| Feb 21, 2026 | Exercise | CGNX Cognex Corp Restricted Stock Unit | — | -3K -100.00% | 0 0.00% of shares | low |
| Feb 17, 2026 | Grant | CGNX Cognex Corp Restricted Stock Unit | — | +5K | 4,817 <0.01% of shares | low |
| Feb 18, 2026 | Exercise | CGNX Cognex Corp Restricted Stock Unit | — | -8K -100.00% | 0 0.00% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Restricted Stock Unit | — | -12K -12.48% | 84,828 0.13% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Restricted Stock Unit | — | -17K -14.92% | 96,919 0.14% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Restricted Stock Unit | — | -7K -5.95% | 113,909 0.17% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Restricted Stock Unit | — | -4K -3.09% | 121,117 0.18% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Restricted Stock Unit | — | -8K -5.77% | 124,976 0.18% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Restricted Stock Unit | — | -22K -14.28% | 132,629 0.20% of shares | low |
| Feb 17, 2026 | Grant | MKSI MKS Inc Restricted Stock Unit | — | +16K +11.21% | 154,717 0.23% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Common Stock | — | +12K +5.89% | 217,244 0.32% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Common Stock | — | +17K +9.03% | 205,153 0.30% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Common Stock | — | +7K +3.98% | 188,164 0.28% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Common Stock | — | +4K +2.18% | 180,956 0.27% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Common Stock | — | +8K +4.52% | 177,097 0.26% of shares | low |
| Feb 17, 2026 | Exercise | MKSI MKS Inc Common Stock | — | +22K +14.99% | 169,443 0.25% of shares | low |
| Feb 8, 2026 | Grant | MKSI MKS Inc Restricted Stock Unit | — | +51K +57.82% | 139,124 0.21% of shares | low |