| 2012-02-13 | Sale | MKS Instruments, Inc. MKSI | VP/GM, Vacuum Products | 376 0.0007% | $31.98 | $12,024 | -15.16% | |
| 2011-08-09 | Sale | MKS Instruments, Inc. MKSI | VP, Vacuum Products | 17,150 0.0326% | $22.46 | $385,275 | +21.89% | |
| 2011-02-10 | Sale | MKS Instruments, Inc. MKSI | VP, Vacuum Products | 48,000 0.0888% | $28.55 | $1.37M | -11.03% | |
| 2010-03-25 | Sale | MKS Instruments, Inc. MKSI | V.P. Vacuum Products & PFMC | 17,828 0.0369% | $19.50 | $347,646 | +9.37% | |
| 2009-08-03 | Sale | MKS Instruments, Inc. MKSI | V.P. Vacuum Products & PFMC | 25,812 0.0519% | $19.60 | $505,915 | -3.43% | |
| 2009-03-02 | Sale | MKS Instruments, Inc. MKSI | V.P. Vacuum Products & PFMC | 2,356 0.0048% | $11.89 | $28,013 | +38.77% | |
| 2008-05-19 | Sale | MKS Instruments, Inc. MKSI | V.P. Vacuum Products & PFMC | 6,204 0.0129% | $25.72 | $159,567 | -35.71% | |
| 2007-06-11 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 266 0.0002% | $13.70 | $3,644 | -24.47% | |
| 2007-06-04 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 14,896 0.0132% | $13.70 | $204,075 | -24.03% | |
| 2007-06-01 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 31,980 0.0281% | $13.71 | $438,446 | -24.4% | |
| 2007-05-31 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 40,000 0.0703% | $27.22 | $1.09M | -23.91% | |
| 2007-05-22 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 35,650 0.0626% | $27.05 | $964,333 | -23.53% | |
| 2007-05-21 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 46,100 0.0814% | $27.10 | $1.25M | -23.19% | |
| 2007-05-07 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 3,944 0.0035% | $13.80 | $54,427 | -24.47% | |
| 2007-05-04 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 49,114 0.0432% | $13.80 | $677,773 | -24.89% | |
| 2007-05-02 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 111,800 0.1978% | $27.60 | $3.09M | -24.44% | |
| 2007-04-16 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 56,250 0.0977% | $26.86 | $1.51M | -23.78% | |
| 2007-02-15 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 56,250 0.0927% | $22.65 | $1.27M | -9.94% | |
| 2006-04-19 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 112,344 0.1978% | $23.86 | $2.68M | -12.66% | |
| 2004-12-06 | Sale | MKS Instruments, Inc. MKSI | V.P. & General Manager | 164,180 0.2998% | $18.08 | $2.97M | -4.9% |