Insider Trading activities of Bronco Drilling Company, Inc. insiders.

Monthly summaries of insider trading activities (stock purchases, sales, and option exercises) reported by insiders of Bronco Drilling Company, Inc. since 2005 are illustrated in Table 1 and Table 2. Table 1 shows the monthly insider trading data of Bronco Drilling Company, Inc. since year 2005. Table 2 shows the detailed insider transactions of Bronco Drilling Company, Inc. since 2005. The reporting company's ticker symbol is BRNC. The reporting company's CIK number is 1328650.
The total value of stock buying since 2005 is $1,026,959,592.
The total value of stock sales since 2005 is $512,909,233.
The total value of stock option exercises since 2005 is $0.


Table 1. Monthly summaries of insider stock purchases, sales, and option exercises for Bronco Drilling Company, Inc. (BRNC).
Trading Period Insider Buying Insider Sales Option Exercises
year-month Shares Value Shares Value Shares Value
2011-06 92,350,958 $1,015,860,538 0 $0 0 $0
2011-03 0 $0 100,743 $1,015,669 0 $0
2011-02 0 $0 72,426 $522,915 0 $0
2011-01 0 $0 47,574 $324,619 0 $0
2010-12 0 $0 6,000 $44,220 0 $0
2010-10 0 $0 14,083 $63,489 0 $0
2010-06 0 $0 52,917 $214,005 0 $0
2010-05 5,000 $17,900 28,740 $127,945 0 $0
2010-04 0 $0 8,740 $42,650 0 $0
2010-03 0 $0 35,771 $181,001 0 $0
2010-02 0 $0 93,600 $456,616 0 $0
2010-01 0 $0 13,167 $67,427 0 $0
2009-11 0 $0 16,500 $99,410 0 $0
2009-08 0 $0 253,754 $1,065,755 0 $0
2009-07 0 $0 301,000 $1,220,621 0 $0
2009-06 20,000 $129,706 243,204 $1,200,473 0 $0
2009-05 0 $0 23,760 $147,977 0 $0
2009-04 0 $0 58,496 $372,949 0 $0
2009-03 192,000 $726,718 34,500 $202,470 0 $0
2009-02 565,418 $3,242,839 33,786 $170,366 0 $0
2009-01 88,000 $511,021 58,683 $359,501 0 $0
2008-12 552,500 $3,366,445 5,000 $34,015 0 $0
2008-11 223,393 $1,223,620 0 $0 0 $0
2008-10 112,200 $869,905 0 $0 0 $0
2008-09 100,000 $1,010,900 0 $0 0 $0
2008-04 0 $0 10,000 $162,462 0 $0
2008-02 0 $0 4,950 $75,660 0 $0
2008-01 0 $0 121,460 $1,836,428 0 $0
2007-03 0 $0 6,472,312 $97,084,680 0 $0
2007-02 0 $0 2,728,632 $43,702,406 0 $0
2007-01 0 $0 1,510,000 $24,016,482 0 $0
2006-12 0 $0 850,000 $16,173,384 0 $0
2006-11 0 $0 9,662,814 $173,301,518 0 $0
2006-10 0 $0 822,800 $14,603,336 0 $0
2006-09 0 $0 51,844 $931,287 0 $0
2006-03 0 $0 5,250,000 $119,437,500 0 $0
2005-08 0 $0 802,941 $13,649,997 0 $0

Table 2. Detailed insider stock purchases, sales, and option exercises of Bronco Drilling Company, Inc. insiders (BRNC)
  Trade Date   Insider Name Trade Type     Shares       Price ($)   Value ($)
2011-06-06 Nomac Acquisition, Inc. (10% Owner) Buy 92,350,958 11.00 1,015,860,538
2011-03-18 Porter Matthew S (CFO, Treasurer and Secretary) Sale 4,500 9.90 44,550
2011-03-17 Hill Gary C (Director) Sale 2,500 9.85 24,630
2011-03-16 Hill Gary C (Director) Sale 2,500 9.56 23,900
2011-03-14 Dubberstein Mark (President) Sale 12,143 10.11 122,765
2011-03-14 Harrison D Frank (Chairman and CEO) Sale 5,000 10.03 50,150
2011-03-11 Dubberstein Mark (President) Sale 11,000 10.07 110,770
2011-03-11 Harrison D Frank (Chairman and CEO) Sale 16,400 10.06 164,984
2011-03-10 Hill Gary C (Director) Sale 2,500 9.64 24,100
2011-03-09 Dubberstein Mark (President) Sale 15,600 10.26 160,056
2011-03-09 Hill Gary C (Director) Sale 5,000 10.34 51,700
2011-03-09 Harrison D Frank (Chairman and CEO) Sale 8,600 10.24 88,064
2011-03-08 Starke Steven R (Chief Accounting Officer) Sale 15,000 10.00 150,000
2011-02-01 Graves Zachary M (See Remarks) Sale 72,426 7.22 522,915
2011-01-31 Graves Zachary M (See Remarks) Sale 597 7.00 4,179
2011-01-28 Graves Zachary M (Executive VP of Operations) Sale 100 7.00 700
2011-01-27 Graves Zachary M (Executive VP of Operations) Sale 2,927 7.00 20,489
2011-01-13 Dubberstein Mark (President) Sale 20,000 6.64 132,800
2011-01-12 Graves Zachary M (Executive VP of Operations) Sale 9,146 6.95 63,564
2011-01-11 Graves Zachary M (Executive VP of Operations) Sale 14,804 6.95 102,887
2010-12-28 Snipes William R (Director) Sale 6,000 7.37 44,220
2010-10-15 Dubberstein Mark (President) Sale 2,483 4.50 11,173
2010-10-14 Dubberstein Mark (President) Sale 10,600 4.51 47,806
2010-10-13 Dubberstein Mark (President) Sale 1,000 4.51 4,510
2010-06-21 Dubberstein Mark (President) Sale 17,917 4.51 80,805
2010-06-15 Dubberstein Mark (President) Sale 15,000 4.00 60,000
2010-06-11 Graves Zachary M (Executive VP of Operations) Sale 20,000 3.66 73,200
2010-05-27 House David W Buy 5,000 3.58 17,900
2010-05-13 Dubberstein Mark (President) Sale 6,000 4.42 26,520
2010-05-13 Hill Gary C Sale 13,740 4.48 61,555
2010-05-12 Dubberstein Mark (President) Sale 9,000 4.43 39,870
2010-04-13 Snipes William R Sale 6,172 4.83 29,810
2010-04-12 Snipes William R Sale 2,568 5.00 12,840
2010-03-01 Dubberstein Mark (President) Sale 14,200 5.06 71,852
2010-03-01 Harrison D Frank (Chief Executive Officer) Sale 14,400 5.07 73,008
2010-03-01 Graves Zachary M (Executive VP of Operations) Sale 7,171 5.04 36,141
2010-02-26 Starke Steven R (Chief Accounting Officer) Sale 500 4.92 2,460
2010-02-26 Dubberstein Mark (President) Sale 14,900 4.91 73,159
2010-02-26 Harrison D Frank (Chief Executive Officer) Sale 14,700 4.91 72,177
2010-02-26 Graves Zachary M (Executive VP of Operations) Sale 14,300 4.91 70,213
2010-02-25 Porter Matthew S (Chief Financial Officer) Sale 5,000 4.85 24,250
2010-02-25 Starke Steven R (Chief Accounting Officer) Sale 9,900 4.85 48,015
2010-02-25 Dubberstein Mark (President) Sale 10,900 4.85 52,864
2010-02-25 Snipes William R Sale 1,000 4.84 4,840
2010-02-25 Harrison D Frank (Chief Executive Officer) Sale 11,500 4.85 55,774
2010-02-25 Graves Zachary M (Executive VP of Operations) Sale 10,900 4.85 52,864
2010-01-04 Starke Steven R (Chief Accounting Officer) Sale 667 5.14 3,428
2010-01-04 Dubberstein Mark (President) Sale 8,333 5.12 42,664
2010-01-04 Graves Zachary M (Chief Financial Officer) Sale 4,167 5.12 21,335
2009-11-13 Hill Gary C Sale 5,500 5.86 32,230
2009-11-12 Snipes William R Sale 4,000 6.05 24,200
2009-11-11 Hill Gary C Sale 7,000 6.14 42,980
2009-08-21 Jacobs Joseph Sale 25,474 4.28 109,054
2009-08-19 Jacobs Joseph Sale 3,611 4.15 14,985
2009-08-13 Jacobs Joseph Sale 19,083 4.26 81,274
2009-08-12 Jacobs Joseph Sale 7,567 4.30 32,560
2009-08-11 Harrison D Frank (Chief Executive Officer) Sale 4,444 4.18 18,575
2009-08-07 Jacobs Joseph Sale 8,560 4.25 36,397
2009-08-06 Jacobs Joseph Sale 23,875 4.13 98,508
2009-08-05 Jacobs Joseph Sale 13,010 4.21 54,733
2009-08-04 Jacobs Joseph Sale 62,522 4.20 262,342
2009-08-03 Jacobs Joseph Sale 85,608 4.17 357,327
2009-07-27 Jacobs Joseph Sale 3,004 4.16 12,508
2009-07-23 Jacobs Joseph Sale 49,672 4.10 203,853
2009-07-22 Jacobs Joseph Sale 89,489 4.03 360,998
2009-07-20 Jacobs Joseph Sale 25,115 4.06 101,866
2009-07-17 Jacobs Joseph Sale 802 4.05 3,248
2009-07-16 Jacobs Joseph Sale 21,050 4.00 84,263
2009-07-15 Jacobs Joseph Sale 59,717 4.08 243,705
2009-07-14 Jacobs Joseph Sale 7,000 4.05 28,328
2009-07-13 Jacobs Joseph Sale 134 3.72 497
2009-07-09 Jacobs Joseph Sale 15,700 3.69 57,995
2009-07-07 Jacobs Joseph Sale 3,700 4.01 14,851
2009-07-06 Jacobs Joseph Sale 8,301 4.05 33,635
2009-07-01 Jacobs Joseph Sale 17,316 4.32 74,874
2009-06-26 Jacobs Joseph Sale 100 4.40 440
2009-06-25 Jacobs Joseph Sale 173,104 4.40 761,657
2009-06-10 Jacobs Joseph Sale 10,100 6.30 63,640
2009-06-08 House David W Buy 5,300 6.50 34,450
2009-06-05 House David W Buy 14,700 6.48 95,256
2009-06-04 Jacobs Joseph Sale 13,000 6.25 81,250
2009-06-02 Jacobs Joseph Sale 36,687 6.27 230,064
2009-06-01 Jacobs Joseph Sale 10,213 6.21 63,422
2009-05-08 Jacobs Joseph Sale 23,760 6.23 147,977
2009-04-17 Jacobs Joseph Sale 49,347 6.43 317,251
2009-04-09 Starke Steven R (Chief Accounting Officer) Sale 4,516 5.85 26,418
2009-04-02 Jacobs Joseph Sale 4,633 6.32 29,280
2009-03-19 Dubberstein Mark (President) Sale 30,000 5.87 176,100
2009-03-19 Snipes William R Sale 4,500 5.86 26,370
2009-03-05 Inmobiliaria Carso S A De C V (Other) Buy 53,000 3.81 202,142
2009-03-04 Inmobiliaria Carso S A De C V (Other) Buy 47,000 3.87 181,796
2009-03-03 Inmobiliaria Carso S A De C V (Other) Buy 72,000 3.72 267,480
2009-03-02 Inmobiliaria Carso S A De C V (Other) Buy 20,000 3.76 75,300
2009-02-26 Inmobiliaria Carso S A De C V (Other) Buy 53,000 4.71 248,319
2009-02-25 Starke Steven R (Chief Accounting Officer) Sale 2,008 4.94 9,919
2009-02-25 Dubberstein Mark (President) Sale 6,667 4.94 32,934
2009-02-25 Snipes William R Sale 1,000 4.94 4,940
2009-02-25 Harrison D Frank (Chairman) Sale 10,000 4.94 49,400
2009-02-25 Graves Zachary M (Chief Financial Officer) Sale 9,667 4.94 47,754
2009-02-25 Inmobiliaria Carso S A De C V (Other) Buy 24,000 4.82 115,800
2009-02-11 Harrison D Frank (Chairman) Sale 4,444 5.72 25,419
2009-02-05 Inmobiliaria Carso S A De C V (Other) Buy 450,000 6.00 2,700,000
2009-01-16 Inmobiliaria Carso S A De C V (Other) Buy 17,000 5.74 97,495
2009-01-15 Inmobiliaria Carso S A De C V (Other) Buy 18,000 5.68 102,204
2009-01-12 Inmobiliaria Carso S A De C V (Other) Buy 53,000 5.87 311,322
2009-01-05 Starke Steven R (Chief Accounting Officer) Sale 2,367 6.04 14,296
2009-01-05 Dubberstein Mark (President) Sale 7,859 6.04 47,468
2009-01-05 Snipes William R Sale 1,178 6.04 7,115
2009-01-05 Harrison D Frank (Chairman) Sale 11,788 6.04 71,199
2009-01-05 Graves Zachary M (Chief Financial Officer) Sale 11,395 6.04 68,825
2009-01-02 Starke Steven R (Chief Accounting Officer) Sale 1,650 6.25 10,312
2009-01-02 Dubberstein Mark (President) Sale 5,474 6.25 34,212
2009-01-02 Snipes William R Sale 822 6.25 5,137
2009-01-02 Harrison D Frank (Chairman) Sale 8,212 6.25 51,325
2009-01-02 Graves Zachary M (Chief Financial Officer) Sale 7,938 6.25 49,612
2008-12-30 Inmobiliaria Carso S A De C V (Other) Buy 27,000 5.90 159,273
2008-12-29 Inmobiliaria Carso S A De C V (Other) Buy 66,000 5.91 389,862
2008-12-24 Inmobiliaria Carso S A De C V (Other) Buy 35,000 5.91 204,677
2008-12-23 Inmobiliaria Carso S A De C V (Other) Buy 33,000 6.05 199,749
2008-12-22 Inmobiliaria Carso S A De C V (Other) Buy 73,000 6.01 439,022
2008-12-19 Inmobiliaria Carso S A De C V (Other) Buy 134,000 6.02 806,546
2008-12-16 Inmobiliaria Carso S A De C V (Other) Buy 49,000 6.43 314,874
2008-12-08 Snipes William R Sale 5,000 6.80 34,015
2008-12-08 Inmobiliaria Carso S A De C V (Other) Buy 1,000 6.98 6,980
2008-12-05 Inmobiliaria Carso S A De C V (Other) Buy 25,000 6.36 158,900
2008-12-04 Inmobiliaria Carso S A De C V (Other) Buy 75,000 6.46 484,875
2008-11-28 Inmobiliaria Carso S A De C V (Other) Buy 16,000 6.11 97,760
2008-11-26 Inmobiliaria Carso S A De C V (Other) Buy 32,000 5.55 174,309
2008-11-25 Inmobiliaria Carso S A De C V (Other) Buy 96,000 5.48 525,888
2008-11-24 Inmobiliaria Carso S A De C V (Other) Buy 51,000 5.33 271,830
2008-10-08 Jacobs Joseph Buy 101,700 7.55 767,835
2008-10-01 Jacobs Joseph Buy 10,500 9.72 102,070
2008-09-29 Jacobs Joseph Buy 100,000 10.11 1,010,900
2008-04-11 Dubberstein Mark (President) Sale 2,500 16.34 40,850
2008-04-08 Dubberstein Mark (President) Sale 7,500 16.22 121,612
2008-02-11 Harrison D Frank (Chief Executive Officer) Sale 4,950 15.28 75,660
2008-01-03 Starke Steven R (Chief Accounting Officer) Sale 1,035 15.24 15,745
2008-01-03 Dubberstein Mark (President) Sale 3,438 15.24 52,300
2008-01-03 Bartlett Larry (SVP Drilling Operations) Sale 2,922 15.24 44,450
2008-01-03 Harrison D Frank (Chief Executive Officer) Sale 5,157 15.24 78,450
2008-01-03 Graves Zachary M (CFO, Secretary and Treasurer) Sale 4,986 15.24 75,850
2008-01-02 Starke Steven R (Chief Accounting Officer) Sale 3,484 15.08 52,368
2008-01-02 Dubberstein Mark (President) Sale 19,895 15.08 299,428
2008-01-02 Bartlett Larry (SVP Drilling Operations) Sale 9,828 15.08 147,728
2008-01-02 Harrison D Frank (Chief Executive Officer) Sale 17,343 15.08 260,688
2008-01-02 Graves Zachary M (CFO, Secretary and Treasurer) Sale 16,764 15.08 251,984
2007-03-16 Bronco Drilling Holdings, L.l.c. Sale 3,236,156 15.00 48,542,340
2007-03-16 Davidson Charles E Sale 3,236,156 15.00 48,542,340
2007-02-22 Bronco Drilling Holdings, L.l.c. Sale 100,000 15.85 1,585,000
2007-02-22 Davidson Charles E Sale 100,000 15.85 1,585,000
2007-02-07 Bronco Drilling Holdings, L.l.c. Sale 250,000 15.65 3,912,500
2007-02-07 Davidson Charles E Sale 250,000 15.65 3,912,500
2007-02-06 Bronco Drilling Holdings, L.l.c. Sale 100,000 16.00 1,600,000
2007-02-06 Davidson Charles E Sale 100,000 16.00 1,600,000
2007-02-02 Bronco Drilling Holdings, L.l.c. Sale 270,486 16.03 4,335,890
2007-02-02 Davidson Charles E Sale 270,486 16.03 4,335,890
2007-02-01 Bronco Drilling Holdings, L.l.c. Sale 643,830 16.18 10,417,813
2007-02-01 Davidson Charles E Sale 643,830 16.18 10,417,813
2007-01-31 Bronco Drilling Holdings, L.l.c. Sale 100,000 16.00 1,600,000
2007-01-31 Davidson Charles E Sale 100,000 16.00 1,600,000
2007-01-30 Bronco Drilling Holdings, L.l.c. Sale 108,300 16.02 1,735,399
2007-01-30 Davidson Charles E Sale 108,300 16.02 1,735,399
2007-01-29 Bronco Drilling Holdings, L.l.c. Sale 120,000 15.81 1,896,720
2007-01-29 Davidson Charles E Sale 120,000 15.81 1,896,720
2007-01-26 Bronco Drilling Holdings, L.l.c. Sale 96,600 15.77 1,523,575
2007-01-26 Davidson Charles E Sale 96,600 15.77 1,523,575
2007-01-25 Bronco Drilling Holdings, L.l.c. Sale 3,400 15.86 53,937
2007-01-25 Davidson Charles E Sale 3,400 15.86 53,937
2007-01-24 Bronco Drilling Holdings, L.l.c. Sale 11,700 15.94 186,474
2007-01-24 Davidson Charles E Sale 11,700 15.94 186,474
2007-01-23 Bronco Drilling Holdings, L.l.c. Sale 286,000 15.95 4,561,128
2007-01-23 Davidson Charles E Sale 286,000 15.95 4,561,128
2007-01-22 Bronco Drilling Holdings, L.l.c. Sale 29,000 15.55 451,008
2007-01-22 Davidson Charles E Sale 29,000 15.55 451,008
2006-12-11 Bronco Drilling Holdings, L.l.c. Sale 119,500 18.94 2,263,927
2006-12-11 Davidson Charles E Sale 119,500 18.94 2,263,927
2006-12-08 Bronco Drilling Holdings, L.l.c. Sale 81,200 19.00 1,543,206
2006-12-08 Davidson Charles E Sale 81,200 19.00 1,543,206
2006-12-07 Bronco Drilling Holdings, L.l.c. Sale 184,300 19.01 3,503,358
2006-12-07 Davidson Charles E Sale 184,300 19.01 3,503,358
2006-12-06 Bronco Drilling Holdings, L.l.c. Sale 19,900 19.37 385,463
2006-12-06 Davidson Charles E Sale 19,900 19.37 385,463
2006-12-05 Bronco Drilling Holdings, L.l.c. Sale 3,600 19.53 70,308
2006-12-05 Davidson Charles E Sale 3,600 19.53 70,308
2006-12-04 Bronco Drilling Holdings, L.l.c. Sale 16,500 19.42 320,430
2006-12-04 Davidson Charles E Sale 16,500 19.42 320,430
2006-11-29 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 3,927,429 18.11 71,113,956
2006-11-29 Jacobs Joseph (10% Owner) Sale 3,927,429 18.11 71,113,956
2006-11-28 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 79,300 17.70 1,403,610
2006-11-28 Jacobs Joseph (10% Owner) Sale 79,300 17.70 1,403,610
2006-11-27 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 50,000 17.66 882,850
2006-11-27 Jacobs Joseph (10% Owner) Sale 50,000 17.66 882,850
2006-11-16 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 9,000 17.62 158,589
2006-11-16 Jacobs Joseph (10% Owner) Sale 9,000 17.62 158,589
2006-11-15 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 38,000 17.56 667,394
2006-11-15 Jacobs Joseph (10% Owner) Sale 38,000 17.56 667,394
2006-11-09 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 186,578 17.18 3,205,410
2006-11-09 Jacobs Joseph (10% Owner) Sale 186,578 17.18 3,205,410
2006-11-08 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 338,600 17.00 5,756,200
2006-11-08 Jacobs Joseph (10% Owner) Sale 338,600 17.00 5,756,200
2006-11-07 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 202,500 17.10 3,462,750
2006-11-07 Jacobs Joseph (10% Owner) Sale 202,500 17.10 3,462,750
2006-10-27 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 136,400 17.74 2,420,418
2006-10-27 Jacobs Joseph (10% Owner) Sale 136,400 17.74 2,420,418
2006-10-26 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 25,000 17.75 443,750
2006-10-26 Jacobs Joseph (10% Owner) Sale 25,000 17.75 443,750
2006-10-25 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 250,000 17.75 4,437,500
2006-10-25 Jacobs Joseph (10% Owner) Sale 250,000 17.75 4,437,500
2006-09-29 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 23,122 18.02 416,658
2006-09-29 Wexford Capital Llc (10% Owner) Sale 23,122 18.02 416,658
2006-09-28 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 2,800 17.90 50,119
2006-09-28 Wexford Capital Llc (10% Owner) Sale 2,800 17.09 47,852
2006-03-29 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 1,750,000 22.75 39,812,500
2006-03-29 Jacobs Joseph (10% Owner) Sale 1,750,000 22.75 39,812,500
2006-03-29 Davidson Charles E (10% Owner) Sale 1,750,000 22.75 39,812,500
2005-08-19 Bronco Drilling Holdings, L.l.c. (10% Owner) Sale 267,647 17.00 4,549,999
2005-08-19 Jacobs Joseph (10% Owner) Sale 267,647 17.00 4,549,999
2005-08-19 Davidson Charles E (10% Owner) Sale 267,647 17.00 4,549,999

Insider trading activities including stock purchases, stock sales, and option exercises of BRNC listed in the above tables cannot be completely guaranteed as to their accuracy. For more insider trading information of Bronco Drilling Company, Inc. (symbol BRNC, CIK number 1328650) see the Securities and Exchange Commission (SEC) website.