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 Sep 3, 2010 involved selling 400 shares valued at $24.7K.
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 Sep 3, 2010, when they sold 400 shares at $61.75 per share.
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| $61.75 |
| Discretionary |
| Sep 3, 2010 | PXD | $39.8K | Sale | 645 | $61.72 | Discretionary |
| Sep 3, 2010 | PXD | $6.2K | Sale | 100 | $61.78 | Discretionary |
| Sep 3, 2010 | PXD | $6.2K | Sale | 100 | $61.79 | Discretionary |
| Sep 3, 2010 | PXD | $12.4K | Sale | 200 | $61.79 | Discretionary |
| Sep 3, 2010 | PXD | $24.7K | Sale | 400 | $61.79 | Discretionary |
| Sep 3, 2010 | PXD | $39.1K | Other | 625 | $62.50 | Discretionary |
| Feb 26, 2010 | PXD | $100.8K | Payment | 2,160 | $46.67 | Discretionary |
| Feb 26, 2010 | PXD | $2.5K | Other | 54 | $46.65 | Discretionary |
| Feb 16, 2010 | PXD | $0 | Award | 9,134 | $N/A | Discretionary |
| Feb 16, 2010 | PXD | $6.8K | Other | 145 | $47.10 | Discretionary |
| Jan 6, 2010 | PXD | $89.3K | Payment | 1,750 | $51.00 | Discretionary |
| Dec 31, 2009 | PXD | $0 | Award | 6,125 | $N/A | Discretionary |
| Jun 16, 2009 | PSE | $3.8K | Sale | 200 | $19.01 | Discretionary |
| Jun 16, 2009 | PSE | $24.8K | Sale | 1,300 | $19.10 | Discretionary |
| Jun 16, 2009 | PSE | $42.0K | Sale | 2,205 | $19.07 | Discretionary |
| Jun 16, 2009 | PSE | $1.9K | Sale | 100 | $19.08 | Discretionary |
| Jun 16, 2009 | PSE | $22.3K | Sale | 1,169 | $19.09 | Discretionary |
| Jun 16, 2009 | PSE | $500 | Sale | 26 | $19.23 | Discretionary |
| Feb 18, 2009 | PXD | $0 | Award | 25,696 | $N/A | Discretionary |
| Feb 18, 2009 | PXD | $0 | Other | 16 | $N/A | Discretionary |
| Feb 14, 2009 | PXD | $0 | Other | 1,009 | $N/A | Discretionary |
| Feb 14, 2009 | PXD | $58.4K | Payment | 3,392 | $17.23 | Discretionary |
| Dec 12, 2008 | PSE | $35.5K | Purchase | 3,026 | $11.74 | Discretionary |
| Dec 12, 2008 | PSE | $1.2K | Purchase | 100 | $11.74 | Discretionary |
| Dec 12, 2008 | PSE | $33.9K | Purchase | 2,900 | $11.70 | Discretionary |
| Dec 12, 2008 | PSE | $1.2K | Purchase | 100 | $11.69 | Discretionary |
| Dec 12, 2008 | PSE | $3.5K | Purchase | 300 | $11.67 | Discretionary |
| May 6, 2008 | PSE | $190.0K | Purchase | 10,000 | $19.00 | Discretionary |