| 2019-05-08 | Sale | MKS Instruments, Inc. MKSI | director | 1,499 0.0027% | $86.03 | $128,956 | +8.06% | |
| 2018-05-09 | Sale | MKS Instruments, Inc. MKSI | director | 1,988 0.0035% | $110.75 | $220,171 | -24.61% | |
| 2017-05-10 | Sale | MKS Instruments, Inc. MKSI | director | 3,000 0.0055% | $80.00 | $240,000 | +20.49% | |
| 2016-05-09 | Sale | MKS Instruments, Inc. MKSI | director | 3,000 0.0056% | $35.94 | $107,820 | +39.06% | |
| 2015-07-15 | Sale | MKS Instruments, Inc. MKSI | director | 12,000 0.0225% | $36.68 | $440,124 | -2.62% | |
| 2015-05-04 | Sale | MKS Instruments, Inc. MKSI | director | 3,000 0.0056% | $35.46 | $106,380 | +1.28% | |
| 2015-03-02 | Sale | MKS Instruments, Inc. MKSI | director | 12,000 0.0221% | $35.58 | $426,900 | -2.3% | |
| 2014-06-04 | Sale | MKS Instruments, Inc. MKSI | director | 6,000 0.0111% | $28.65 | $171,918 | +19.94% | |
| 2014-02-03 | Sale | MKS Instruments, Inc. MKSI | director | 24,000 0.0378% | $24.88 | $597,156 | +9.27% | |
| 2013-12-06 | Sale | MKS Instruments, Inc. MKSI | director | 10,000 0.0189% | $29.39 | $293,850 | +4.85% | |
| 2012-11-26 | Sale | MKS Instruments, Inc. MKSI | director | 24,000 0.0387% | $20.58 | $493,824 | +14.21% | |
| 2012-07-30 | Sale | MKS Instruments, Inc. MKSI | director | 12,000 0.0226% | $26.23 | $314,784 | +3.44% | |
| 2011-05-02 | Sale | MKS Instruments, Inc. MKSI | director | 12,000 0.0247% | $28.32 | $339,876 | +1.22% | |
| 2010-07-26 | Sale | MKS Instruments, Inc. MKSI | director | 6,000 0.0118% | $21.22 | $127,320 | +15.51% | |
| 2009-05-04 | Sale | MKS Instruments, Inc. MKSI | director | 8,000 0.0157% | $15.28 | $122,240 | +15.54% | |
| 2008-05-06 | Sale | MKS Instruments, Inc. MKSI | director | 8,000 0.0158% | $23.37 | $186,960 | -31.57% | |
| 2007-04-30 | Sale | MKS Instruments, Inc. MKSI | director | 13,810 0.023% | $25.49 | $352,039 | -23.04% | |
| 2006-02-21 | Sale | MKS Instruments, Inc. MKSI | director | 15,374 0.014% | $11.45 | $176,032 | -6.92% |