Claire R. Bertucci serves as Executive at MKS INSTRUMENTS INC, where they oversee executive responsibilities. Since joining the company, Claire R. Bertucci has executed 94 insider transactions totaling $103.3M, demonstrating a bearish approach to their equity position. Their most recent transaction on May 1, 2008 involved selling 75,000 shares valued at $1.8M.
Claire R. Bertucci currently holds 1,965,206 shares of MKS INSTRUMENTS INC (MKSI), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Claire R. Bertucci has been a net seller of MKSI stock. They have purchased $0 and sold $103.3M worth of shares.
Claire R. Bertucci's most recent insider trade was on May 1, 2008, when they sold 75,000 shares at $23.72 per share.
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| $23.30 |
| Discretionary |
| Apr 4, 2008 | MKSI | $1.7M | Sale | 75,000 | $22.65 | Discretionary |
| Apr 3, 2008 | MKSI | $1.7M | Sale | 75,000 | $22.78 | Discretionary |
| Mar 10, 2008 | MKSI | $925.6K | Sale | 46,374 | $19.96 | Discretionary |
| Mar 7, 2008 | MKSI | $1.0M | Sale | 50,000 | $20.02 | Discretionary |
| Feb 5, 2008 | MKSI | $470.8K | Sale | 25,000 | $18.83 | Discretionary |
| Feb 4, 2008 | MKSI | $481.0K | Sale | 25,000 | $19.24 | Discretionary |
| Jan 8, 2008 | MKSI | $15.8K | Sale | 900 | $17.50 | Discretionary |
| Jan 3, 2008 | MKSI | $427.6K | Sale | 23,300 | $18.35 | Discretionary |
| Dec 13, 2007 | MKSI | $461.5K | Sale | 25,000 | $18.46 | Discretionary |
| Dec 12, 2007 | MKSI | $466.8K | Sale | 25,000 | $18.67 | Discretionary |
| Dec 6, 2007 | MKSI | $459.3K | Sale | 25,000 | $18.37 | Discretionary |
| Dec 5, 2007 | MKSI | $448.0K | Sale | 25,000 | $17.92 | Discretionary |
| Nov 16, 2007 | MKSI | $443.8K | Sale | 25,000 | $17.75 | Discretionary |
| Nov 15, 2007 | MKSI | $445.0K | Sale | 25,000 | $17.80 | Discretionary |
| Nov 8, 2007 | MKSI | $29.9K | Sale | 1,700 | $17.56 | Discretionary |
| Nov 7, 2007 | MKSI | $440.8K | Sale | 25,000 | $17.63 | Discretionary |
| Oct 22, 2007 | MKSI | $486.8K | Sale | 25,000 | $19.47 | Discretionary |
| Oct 19, 2007 | MKSI | $508.6K | Sale | 26,123 | $19.47 | Discretionary |
| Oct 11, 2007 | MKSI | $1.0M | Sale | 50,000 | $20.19 | Discretionary |
| Oct 10, 2007 | MKSI | $1.0M | Sale | 50,000 | $20.26 | Discretionary |
| Sep 14, 2007 | MKSI | $1.0M | Sale | 50,000 | $20.07 | Discretionary |
| Sep 13, 2007 | MKSI | $1.0M | Sale | 50,000 | $20.65 | Discretionary |
| Aug 16, 2007 | MKSI | $1.1M | Sale | 50,000 | $21.73 | Discretionary |
| Aug 15, 2007 | MKSI | $1.1M | Sale | 50,000 | $21.88 | Discretionary |
| Jul 19, 2007 | MKSI | $2.7M | Sale | 100,000 | $27.29 | Discretionary |
| Jul 18, 2007 | MKSI | $2.7M | Sale | 100,000 | $27.05 | Discretionary |
| Jun 21, 2007 | MKSI | $2.8M | Sale | 100,000 | $27.72 | Discretionary |
| Jun 20, 2007 | MKSI | $2.8M | Sale | 100,000 | $27.59 | Discretionary |