Robert J. Carpenter serves as Executive at GENZYME CORP, where they oversee executive responsibilities. Since joining the company, Robert J. Carpenter has executed 37 insider transactions totaling $10.3M, demonstrating a bearish approach to their equity position. Their most recent transaction on Aug 3, 2021 involved purchasing 325,000 shares valued at $4.9M.
Robert J. Carpenter currently holds 1,148,839 shares of GENZYME CORP (GENZ), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Robert J. Carpenter has been a net seller of GENZ stock. They have purchased $4.9M and sold $5.4M worth of shares.
Robert J. Carpenter's most recent insider trade was on Aug 3, 2021, when they purchased 325,000 shares at $15.00 per share.
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| $N/A |
| Discretionary |
| Apr 4, 2011 | GENZ | $0 | Option Exercise | 2,375 | $N/A | Discretionary |
| Apr 4, 2011 | GENZ | $175.8K | Disposition | 2,375 | $74.00 | Discretionary |
| Apr 4, 2011 | GENZ | $2.4M | Tender | 31,825 | $74.00 | Discretionary |
| Jun 16, 2010 | GENZ | $0 | Option Exercise | 2,500 | $N/A | Discretionary |
| Dec 15, 2009 | GENZ | $0 | Gift | 200 | $N/A | Discretionary |
| May 22, 2009 | GENZ | $0 | Option Exercise | 2,500 | $N/A | Discretionary |
| May 22, 2009 | GENZ | $58.7K | Sale | 1,000 | $58.70 | Discretionary |
| May 21, 2009 | GENZ | $0 | Option Exercise | 2,500 | $N/A | Discretionary |
| May 15, 2009 | GENZ | $86.2K | Sale | 1,452 | $59.40 | Discretionary |
| May 15, 2009 | GENZ | $29.9K | Option Exercise | 1,452 | $20.59 | Discretionary |
| May 14, 2009 | GENZ | $205.9K | Option Exercise | 10,000 | $20.59 | Discretionary |
| May 14, 2009 | GENZ | $603.3K | Sale | 10,000 | $60.33 | Discretionary |
| May 13, 2009 | GENZ | $205.9K | Option Exercise | 10,000 | $20.59 | Discretionary |
| May 13, 2009 | GENZ | $606.2K | Sale | 10,000 | $60.62 | Discretionary |
| May 12, 2009 | GENZ | $452.3K | Sale | 7,452 | $60.70 | Discretionary |
| May 12, 2009 | GENZ | $0 | Option Exercise | 2,548 | $N/A | Discretionary |
| May 12, 2009 | GENZ | $0 | Option Exercise | 7,452 | $N/A | Discretionary |
| May 12, 2009 | GENZ | $154.7K | Sale | 2,548 | $60.70 | Discretionary |
| May 11, 2009 | GENZ | $612.8K | Sale | 10,000 | $61.28 | Discretionary |
| May 11, 2009 | GENZ | $0 | Option Exercise | 10,000 | $N/A | Discretionary |
| May 22, 2008 | GENZ | $0 | Gift | 150 | $N/A | Discretionary |
| Dec 26, 2007 | GENZ | $0 | Gift | 75 | $N/A | Discretionary |
| Nov 15, 2007 | GENZ | $345.1K | Option Exercise | 18,543 | $18.61 | Discretionary |
| Nov 15, 2007 | GENZ | $1.4M | Sale | 18,543 | $73.05 | Discretionary |
| Nov 2, 2007 | GENZ | $91.4K | Sale | 1,219 | $75.00 | Discretionary |
| Nov 2, 2007 | GENZ | $22.7K | Option Exercise | 1,219 | $18.61 | Discretionary |
| Nov 1, 2007 | GENZ | $322.4K | Option Exercise | 17,324 | $18.61 | Discretionary |
| Nov 1, 2007 | GENZ | $1.3M | Sale | 17,324 | $75.00 | Discretionary |