Mark Stephen Berg serves as Executive at PIONEER NATURAL RESOURCES CO, where they oversee executive responsibilities. Since joining the company, Mark Stephen Berg has executed 240 insider transactions totaling $25.4M, demonstrating a bearish approach to their equity position. Their most recent transaction on Mar 6, 2012 involved selling 1,800 shares valued at $184.5K.
Mark Stephen Berg currently holds 77,253 shares of PIONEER NATURAL RESOURCES CO (PXD), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mark Stephen Berg has been a net seller of PXD stock. They have purchased $440.6K and sold $24.9M worth of shares.
Mark Stephen Berg's most recent insider trade was on Mar 6, 2012, when they sold 1,800 shares at $102.48 per share.
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| $102.48 |
| Discretionary |
| Feb 22, 2012 | PXD | $0 | Award | 19,947 | $N/A | Discretionary |
| Feb 18, 2012 | PXD | $9.8K | Other | 86 | $113.67 | Discretionary |
| Feb 18, 2012 | PXD | $553.6K | Payment | 4,870 | $113.67 | Discretionary |
| Jan 4, 2012 | PXD | $989.2K | Payment | 10,679 | $92.63 | Discretionary |
| Jan 4, 2012 | PXD | $278 | Other | 3 | $92.63 | Discretionary |
| Dec 31, 2011 | PXD | $0 | Award | 32,120 | $N/A | Discretionary |
| Nov 17, 2011 | PXD | $45.8K | Other | 486 | $94.27 | Discretionary |
| Nov 16, 2011 | PXD | $9.6K | Sale | 100 | $96.22 | Discretionary |
| Nov 16, 2011 | PXD | $28.9K | Sale | 300 | $96.23 | Discretionary |
| Nov 16, 2011 | PXD | $48.1K | Sale | 500 | $96.23 | Discretionary |
| Nov 16, 2011 | PXD | $412.8K | Sale | 4,293 | $96.15 | Discretionary |
| Nov 16, 2011 | PXD | $9.6K | Sale | 100 | $96.17 | Discretionary |
| Nov 16, 2011 | PXD | $19.2K | Sale | 200 | $96.18 | Discretionary |
| Nov 16, 2011 | PXD | $9.6K | Sale | 100 | $96.18 | Discretionary |
| Nov 16, 2011 | PXD | $19.9K | Sale | 207 | $96.18 | Discretionary |
| Nov 16, 2011 | PXD | $9.6K | Sale | 100 | $96.19 | Discretionary |
| Nov 16, 2011 | PXD | $19.2K | Sale | 200 | $96.19 | Discretionary |
| Nov 16, 2011 | PXD | $38.5K | Sale | 400 | $96.19 | Discretionary |
| Nov 16, 2011 | PXD | $28.9K | Sale | 300 | $96.20 | Discretionary |
| Nov 16, 2011 | PXD | $19.2K | Sale | 200 | $96.21 | Discretionary |
| Nov 16, 2011 | PXD | $28.9K | Sale | 300 | $96.22 | Discretionary |
| Nov 16, 2011 | PXD | $19.2K | Sale | 200 | $96.22 | Discretionary |
| Feb 18, 2011 | PXD | $10.0K | Sale | 100 | $100.20 | Discretionary |
| Feb 18, 2011 | PXD | $11.6K | Sale | 116 | $100.19 | Discretionary |
| Feb 18, 2011 | PXD | $20.0K | Sale | 200 | $100.17 | Discretionary |
| Feb 18, 2011 | PXD | $18.3K | Sale | 183 | $100.18 | Discretionary |
| Feb 18, 2011 | PXD | $90.5K | Sale | 905 | $100.03 | Discretionary |
| Feb 18, 2011 | PXD | $50.0K | Sale | 500 | $100.03 | Discretionary |