| 2003-11-12 | Sale | MKS Instruments, Inc. MKSI | V.P. & CTO | 109,624 0.203% | $27.78 | $3.05M | -22.81% | |
| 2003-11-11 | Sale | MKS Instruments, Inc. MKSI | V.P. & CTO | 53,882 0.1016% | $27.23 | $1.47M | -19.57% | |
| 2003-11-04 | Sale | MKS Instruments, Inc. MKSI | V.P. & CTO | 200,000 0.3682% | $27.40 | $5.48M | -21.68% |