Mark Dubberstein serves as Executive at Bronco Drilling Company, Inc., where they oversee executive responsibilities. Since joining the company, Mark Dubberstein has executed 118 insider transactions totaling $2.1M, demonstrating a bearish approach to their equity position. Their most recent transaction on Jun 3, 2011 involved transacting 289,749 shares valued at $3.2M.
Mark Dubberstein currently holds 289,749 shares of Bronco Drilling Company, Inc. (BRNC), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, Mark Dubberstein has been a net seller of BRNC stock. They have purchased $0 and sold $2.1M worth of shares.
Mark Dubberstein's most recent insider trade was on Jun 3, 2011, when they sold 289,749 shares at $11.00 per share.
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| $10.11 |
| Discretionary |
| Mar 11, 2011 | BRNC | $110.8K | Sale | 11,000 | $10.07 | Discretionary |
| Mar 9, 2011 | BRNC | $160.1K | Sale | 15,600 | $10.26 | Discretionary |
| Feb 25, 2011 | BRNC | $354.3K | Payment | 40,304 | $8.79 | Discretionary |
| Feb 17, 2011 | BRNC | $244.5K | Sale | 30,000 | $8.15 | Discretionary |
| Jan 13, 2011 | BRNC | $132.8K | Sale | 20,000 | $6.64 | Discretionary |
| Jan 12, 2011 | BRNC | $0 | Award | 102,700 | $N/A | Discretionary |
| Oct 15, 2010 | BRNC | $11.2K | Sale | 2,483 | $4.50 | Discretionary |
| Oct 14, 2010 | BRNC | $47.8K | Sale | 10,600 | $4.51 | Discretionary |
| Oct 13, 2010 | BRNC | $4.5K | Sale | 1,000 | $4.51 | Discretionary |
| Jun 21, 2010 | BRNC | $80.8K | Sale | 17,917 | $4.51 | Discretionary |
| Jun 15, 2010 | BRNC | $60.0K | Sale | 15,000 | $4.00 | Discretionary |
| May 13, 2010 | BRNC | $26.5K | Sale | 6,000 | $4.42 | Discretionary |
| May 12, 2010 | BRNC | $39.9K | Sale | 9,000 | $4.43 | Discretionary |
| Apr 19, 2010 | BRNC | $0 | Award | 330,000 | $N/A | Discretionary |
| Mar 1, 2010 | BRNC | $71.9K | Sale | 14,200 | $5.06 | Discretionary |
| Feb 26, 2010 | BRNC | $73.2K | Sale | 14,900 | $4.91 | Discretionary |
| Feb 25, 2010 | BRNC | $52.9K | Sale | 10,900 | $4.85 | Discretionary |
| Jan 4, 2010 | BRNC | $42.7K | Sale | 8,333 | $5.12 | Discretionary |
| Mar 19, 2009 | BRNC | $176.1K | Sale | 30,000 | $5.87 | Discretionary |
| Feb 25, 2009 | BRNC | $32.9K | Sale | 6,667 | $4.94 | Discretionary |
| Jan 30, 2009 | BRNC | $0 | Award | 71,429 | $N/A | Discretionary |
| Jan 5, 2009 | BRNC | $47.5K | Sale | 7,859 | $6.04 | Discretionary |
| Jan 2, 2009 | BRNC | $34.2K | Sale | 5,474 | $6.25 | Discretionary |
| Apr 11, 2008 | BRNC | $40.9K | Sale | 2,500 | $16.34 | Discretionary |
| Apr 8, 2008 | BRNC | $8.1K | Sale | 500 | $16.22 | Discretionary |
| Apr 8, 2008 | BRNC | $3.2K | Sale | 200 | $16.24 | Discretionary |
| Apr 8, 2008 | BRNC | $11.4K | Sale | 700 | $16.23 | Discretionary |
| Apr 8, 2008 | BRNC | $29.2K | Sale | 1,800 | $16.21 | Discretionary |