John C. Mollenkopf serves as Executive at MARKWEST ENERGY PARTNERS L P, where they oversee executive responsibilities. Since joining the company, John C. Mollenkopf has executed 89 insider transactions totaling $3.8M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jan 31, 2012 involved selling 18,897 shares valued at $1.1M.
John C. Mollenkopf currently holds 103,042 shares of MARKWEST ENERGY PARTNERS L P (MWE), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, John C. Mollenkopf has been a net seller of MWE stock. They have purchased $0 and sold $3.8M worth of shares.
John C. Mollenkopf's most recent insider trade was on Jan 31, 2012, when they sold 18,897 shares at $57.96 per share.
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| $N/A |
| Discretionary |
| Jan 26, 2012 | MWE | $0 | Award | 9,613 | $N/A | Discretionary |
| Jan 26, 2012 | MWE | $0 | Award | 30,000 | $N/A | Discretionary |
| Jan 31, 2011 | MWE | $850.6K | Payment | 19,522 | $43.57 | Discretionary |
| Jan 27, 2011 | MWE | $0 | Award | 25,728 | $N/A | Discretionary |
| Jan 27, 2011 | MWE | $0 | Award | 30,000 | $N/A | Discretionary |
| Jul 22, 2010 | MWE | $0 | Award | 22,000 | $N/A | Discretionary |
| Jan 31, 2010 | MWE | $428.5K | Payment | 14,791 | $28.97 | Discretionary |
| Jan 31, 2010 | MWE | $0 | Award | 24,000 | $N/A | Discretionary |
| Jan 31, 2009 | MWE | $162.5K | Payment | 13,040 | $12.46 | Discretionary |
| Jan 22, 2009 | MWE | $0 | Award | 16,000 | $N/A | Discretionary |
| Jan 22, 2009 | MWE | $0 | Award | 21,600 | $N/A | Discretionary |
| Feb 21, 2008 | MWP | $0 | Disposition | 722 | $N/A | Discretionary |
| Feb 21, 2008 | MWP | $0 | Disposition | 1,279 | $N/A | Discretionary |
| Feb 21, 2008 | MWP | $0 | Disposition | 10,252 | $N/A | Discretionary |
| Feb 21, 2008 | MWE | $0 | Award | 48,000 | $N/A | Discretionary |
| Feb 21, 2008 | MWE | $3.7M | Award | 110,101 | $33.32 | Discretionary |
| Feb 21, 2008 | MWE | $0 | Award | 2,437 | $N/A | Discretionary |
| Jan 31, 2008 | MWE | $0 | Option Exercise | 1,000 | $N/A | Discretionary |
| Jan 31, 2008 | MWE | $0 | Option Exercise | 320 | $N/A | Discretionary |
| Jan 31, 2008 | MWE | $0 | Award | 4,559 | $N/A | Discretionary |
| Jan 3, 2008 | MWP | $14.2K | Option Exercise | 2,469 | $5.75 | Discretionary |
| Jan 3, 2008 | MWP | $20.3K | Option Exercise | 2,408 | $8.45 | Discretionary |
| Jan 3, 2008 | MWP | $6.9K | Option Exercise | 1,044 | $6.58 | Discretionary |
| Jan 3, 2008 | MWP | $4.2K | Option Exercise | 1,044 | $4.04 | Discretionary |
| Jan 3, 2008 | MWP | $6.8K | Option Exercise | 867 | $7.89 | Discretionary |
| Jan 31, 2007 | MWP | $0 | Award | 1,065 | $N/A | Discretionary |
| Jan 31, 2007 | MWE | $0 | Option Exercise | 500 | $N/A | Discretionary |
| Jan 31, 2007 | MWE | $0 | Option Exercise | 160 | $N/A | Discretionary |