Insider Trading History of Dubberstein Mark

The following table details the insider trading activities (stock purchases, stock sales, and stock option exercises) by Dubberstein Mark since 2008. The trader's CIK number is 1405106. At the time of the last reporting, Dubberstein Mark was the President of Bronco Drilling Company, Inc.. (stock ticker symbol BRNC). Also see all insider trading activities at Bronco Drilling Company, Inc..


Yearly summary of insider trading at Bronco Drilling Company, Inc. (BRNC) by Dubberstein Mark

Insider Buying Insider Sales Option Exercises
Year Symbol Shares Value Shares Value Shares Value
2011 BRNC 0 $0 58,743 $526,391 0 $0
2010 BRNC 0 $0 110,333 $511,223 0 $0
2009 BRNC 0 $0 50,000 $290,714 0 $0
2008 BRNC 0 $0 33,333 $514,190 0 $0


Insider trading of Bronco Drilling Company, Inc. (BRNC) by Dubberstein Mark

Trade Date Symbol Trade Type Shares Price ($) Value ($)
2011-03-14 BRNC Sale 12,143 10.11 122,765
2011-03-09 BRNC Sale 15,600 10.26 160,056
2011-03-11 BRNC Sale 11,000 10.07 110,770
2011-01-13 BRNC Sale 20,000 6.64 132,800
2010-10-15 BRNC Sale 2,483 4.50 11,173
2010-10-14 BRNC Sale 10,600 4.51 47,806
2010-10-13 BRNC Sale 1,000 4.51 4,510
2010-06-21 BRNC Sale 17,917 4.51 80,805
2010-06-15 BRNC Sale 15,000 4.00 60,000
2010-05-13 BRNC Sale 6,000 4.42 26,520
2010-05-12 BRNC Sale 9,000 4.43 39,870
2010-02-25 BRNC Sale 10,900 4.85 52,864
2010-02-26 BRNC Sale 14,900 4.91 73,159
2010-03-01 BRNC Sale 14,200 5.06 71,852
2010-01-04 BRNC Sale 8,333 5.12 42,664
2009-03-19 BRNC Sale 30,000 5.87 176,100
2009-02-25 BRNC Sale 6,667 4.94 32,934
2009-01-05 BRNC Sale 7,859 6.04 47,468
2009-01-02 BRNC Sale 5,474 6.25 34,212
2008-04-11 BRNC Sale 2,500 16.34 40,850
2008-04-08 BRNC Sale 7,500 16.21 121,612
2008-01-02 BRNC Sale 8,333 15.08 125,636
2008-01-03 BRNC Sale 1,431 15.40 22,041
2008-01-02 BRNC Sale 4,112 15.23 62,609
2008-01-03 BRNC Sale 2,007 15.08 30,259
2008-01-02 BRNC Sale 7,450 14.92 111,183

Insider trading activities including stock purchases, stock sales, and option exercises listed in the above table cannot be completely guaranteed as to their accuracy. For more information regarding the trades made by Dubberstein Mark (President of Bronco Drilling Company, Inc. at the time of this reporting) see the Securities and Exchange Commission (SEC) website.



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