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United States

Bronco Drilling Company Inc (BRNC)

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Ticker: BRNC
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• Purchase • Sale • Planned purchase • Planned sale Net purchase Net sale Activity signal Earnings
Top insiders
Trades
CHESAPEAKE ENERGY CORP
3 purchases — total 1,015,860,538 USD
Buy 6 Jun 2011
Value US$3,249,274.26 | Price 100.50 | Shares 89,975
Buy 6 Jun 2011
Value US$4,925,484.43 | Price 471.38 | Shares 46,337
Buy 6 Jun 2011
Value US$267,060,827.00 | Price 11.00 | Shares 24,278,257
Sale 18 Mar 2011
Value US$2,784,004.31 | Price 281.15 | Shares 87,637
Sale 17 Mar 2011
Value US$24,630.00 | Price 9.85 | Shares 2,500
Sale 16 Mar 2011
Value US$23,900.00 | Price 9.56 | Shares 2,500
Sale 14 Mar 2011
Value US$122,765.73 | Price 10.11 | Shares 12,143
Sale 14 Mar 2011
Value US$50,150.00 | Price 10.03 | Shares 5,000
Sale 11 Mar 2011
Value US$110,770.00 | Price 10.07 | Shares 11,000
Sale 11 Mar 2011
Value US$164,984.00 | Price 10.06 | Shares 16,400
Sale 10 Mar 2011
Value US$24,100.00 | Price 9.64 | Shares 2,500
Sale 9 Mar 2011
Value US$160,056.00 | Price 10.26 | Shares 15,600
Sale 9 Mar 2011
Value US$88,064.00 | Price 10.24 | Shares 8,600
Sale 9 Mar 2011
Value US$51,700.00 | Price 10.34 | Shares 5,000
Sale 8 Mar 2011
Value US$150,000.00 | Price 10.00 | Shares 15,000
Planned sale 1 Feb 2011
Value US$522,915.72 | Price 7.22 | Shares 72,426
Planned sale 28 Jan 2011
Value US$700.00 | Price 7.00 | Shares 100
Planned sale 14 Oct 2010
Value US$47,806.00 | Price 4.51 | Shares 10,600
Buy 27 May 2010
Value US$17,900.00 | Price 3.58 | Shares 5,000
Sale 13 May 2010
Value US$61,555.20 | Price 4.48 | Shares 13,740
Sale 13 May 2010
Value US$26,520.00 | Price 4.42 | Shares 6,000
Sale 12 May 2010
Value US$39,870.00 | Price 4.43 | Shares 9,000
Sale 13 Apr 2010
Value US$29,810.76 | Price 4.83 | Shares 6,172
Sale 12 Apr 2010
Value US$12,840.00 | Price 5.00 | Shares 2,568
Planned sale 1 Mar 2010
Value US$71,852.00 | Price 5.06 | Shares 14,200
Planned sale 1 Mar 2010
Value US$73,008.00 | Price 5.07 | Shares 14,400
Planned sale 26 Feb 2010
Value US$73,159.00 | Price 4.91 | Shares 14,900
Planned sale 26 Feb 2010
Value US$2,460.00 | Price 4.92 | Shares 500
Planned sale 26 Feb 2010
Value US$72,177.00 | Price 4.91 | Shares 14,700
Sale 21 Aug 2009
Value US$39,737.17 | Price 4.28 | Shares 9,282
Sale 21 Aug 2009
Value US$69,319.57 | Price 4.28 | Shares 16,192
Sale 19 Aug 2009
Value US$5,461.40 | Price 4.15 | Shares 1,316
Sale 19 Aug 2009
Value US$9,524.25 | Price 4.15 | Shares 2,295
Sale 13 Aug 2009
Value US$29,612.83 | Price 4.26 | Shares 6,953
Sale 13 Aug 2009
Value US$51,661.67 | Price 4.26 | Shares 12,130
Sale 12 Aug 2009
Value US$11,863.92 | Price 4.30 | Shares 2,757
Sale 12 Aug 2009
Value US$20,698.39 | Price 4.30 | Shares 4,810
Sale 7 Aug 2009
Value US$13,261.68 | Price 4.25 | Shares 3,119
Sale 7 Aug 2009
Value US$23,134.59 | Price 4.25 | Shares 5,441
Sale 6 Aug 2009
Value US$35,896.42 | Price 4.13 | Shares 8,699
Sale 6 Aug 2009
Value US$62,623.76 | Price 4.13 | Shares 15,176
Sale 5 Aug 2009
Value US$19,941.18 | Price 4.21 | Shares 4,740
Sale 5 Aug 2009
Value US$34,791.89 | Price 4.21 | Shares 8,270
Sale 4 Aug 2009
Value US$95,593.99 | Price 4.20 | Shares 22,780
Sale 4 Aug 2009
Value US$166,773.33 | Price 4.20 | Shares 39,742
Sale 3 Aug 2009
Value US$130,180.82 | Price 4.17 | Shares 31,190
Sale 3 Aug 2009
Value US$227,129.85 | Price 4.17 | Shares 54,418
Sale 27 Jul 2009
Value US$4,576.24 | Price 4.16 | Shares 1,099
Sale 27 Jul 2009
Value US$7,932.42 | Price 4.16 | Shares 1,905
Sale 23 Jul 2009
Value US$74,274.19 | Price 4.10 | Shares 18,098
Sale 23 Jul 2009
Value US$129,579.70 | Price 4.10 | Shares 31,574
Sale 22 Jul 2009
Value US$131,529.34 | Price 4.03 | Shares 32,606
Sale 22 Jul 2009
Value US$229,460.33 | Price 4.03 | Shares 56,883
Sale 20 Jul 2009
Value US$37,183.19 | Price 4.06 | Shares 9,167
Sale 20 Jul 2009
Value US$64,688.28 | Price 4.06 | Shares 15,948
Sale 17 Jul 2009
Value US$1,186.65 | Price 4.05 | Shares 293
Sale 17 Jul 2009
Value US$2,061.45 | Price 4.05 | Shares 509
Sale 16 Jul 2009
Value US$30,754.28 | Price 4.00 | Shares 7,683
Sale 16 Jul 2009
Value US$53,506.76 | Price 4.00 | Shares 13,367
Sale 15 Jul 2009
Value US$88,962.28 | Price 4.08 | Shares 21,797
Sale 15 Jul 2009
Value US$154,766.69 | Price 4.08 | Shares 37,920
Sale 14 Jul 2009
Value US$10,339.83 | Price 4.05 | Shares 2,555
Sale 14 Jul 2009
Value US$17,988.47 | Price 4.05 | Shares 4,445
Sale 13 Jul 2009
Value US$182.03 | Price 3.71 | Shares 49
Sale 13 Jul 2009
Value US$315.79 | Price 3.72 | Shares 85
Sale 9 Jul 2009
Value US$21,152.42 | Price 3.69 | Shares 5,726
Sale 9 Jul 2009
Value US$36,844.95 | Price 3.69 | Shares 9,974
Sale 7 Jul 2009
Value US$5,415.43 | Price 4.01 | Shares 1,349
Sale 7 Jul 2009
Value US$9,437.85 | Price 4.01 | Shares 2,351
Sale 6 Jul 2009
Value US$12,266.61 | Price 4.05 | Shares 3,027
Sale 6 Jul 2009
Value US$21,372.36 | Price 4.05 | Shares 5,274
Sale 1 Jul 2009
Value US$27,305.43 | Price 4.32 | Shares 6,315
Sale 1 Jul 2009
Value US$47,567.22 | Price 4.32 | Shares 11,001
Sale 26 Jun 2009
Value US$440.00 | Price 4.40 | Shares 100
Sale 25 Jun 2009
Value US$277,340.80 | Price 4.40 | Shares 63,032
Abbreviations B: Buy, S: Sell, PP: Planned purchase, PlS: Planned sale, PrS: Proposed sale, O: Option / Other
Notification date Transaction date B/S Transaction type Insider and/or position Nb. shares
Price
Value 		Number of shares Price Value Details
2011-06-07 2011-06-06 B Purchase CHESAPEAKE ENERGY CORP Large shareholder
89,975 -31.4%
100.50
US$3,249,274 		89,975 -31.4% 100.50 US$3,249,274
2011-06-07 2011-06-06 B Purchase CHESAPEAKE ENERGY CORP Large shareholder
46,337 +44.2%
471.38
US$4,925,484 		46,337 +44.2% 471.38 US$4,925,484
2011-06-07 2011-06-06 B Purchase CHESAPEAKE ENERGY CORP Large shareholder
45,491 -41.9%
347.55
US$841,322 		45,491 -41.9% 347.55 US$841,322
2011-03-22 2011-03-18 S Sale Porter Matthew S

CFO, Treasurer and Secretary

Officer
4,500 -4.9%
9.90
US$44,550 		4,500 -4.9% 9.90 US$44,550
2011-03-18 2011-03-17 S Sale Hill Gary C Non-Executive Director
2,500 -12.5%
9.85
US$24,630 		2,500 -12.5% 9.85 US$24,630
2011-03-18 2011-03-16 S Sale Hill Gary C Non-Executive Director
2,500 -11.1%
9.56
US$23,900 		2,500 -11.1% 9.56 US$23,900
2011-03-15 2011-03-14 S Sale Dubberstein Mark

President

Officer
12,143 -4.0%
10.11
US$122,766 		12,143 -4.0% 10.11 US$122,766
2011-03-15 2011-03-14 S Sale Harrison D Frank

Chairman and CEO

Executive Director
5,000 -0.8%
10.03
US$50,150 		5,000 -0.8% 10.03 US$50,150
2011-03-11 2011-03-11 S Sale Dubberstein Mark

President

Officer
11,000 -3.5%
10.07
US$110,770 		11,000 -3.5% 10.07 US$110,770
2011-03-11 2011-03-11 S Sale Harrison D Frank

Chairman and CEO

Executive Director
16,400 -2.7%
10.06
US$164,984 		16,400 -2.7% 10.06 US$164,984
2011-03-11 2011-03-10 S Sale Hill Gary C Non-Executive Director
2,500 -10.0%
9.64
US$24,100 		2,500 -10.0% 9.64 US$24,100
2011-03-11 2011-03-09 S Sale Dubberstein Mark

President

Officer
15,600 -4.7%
10.26
US$160,056 		15,600 -4.7% 10.26 US$160,056
2011-03-11 2011-03-09 S Sale Harrison D Frank

Chairman and CEO

Executive Director
8,600 -1.4%
10.24
US$88,064 		8,600 -1.4% 10.24 US$88,064
2011-03-11 2011-03-09 S Sale Hill Gary C Non-Executive Director
5,000 -16.7%
10.34
US$51,700 		5,000 -16.7% 10.34 US$51,700
2011-03-10 2011-03-08 S Sale Starke Steven R

Chief Accounting Officer

Officer
15,000 -21.4%
10.00
US$150,000 		15,000 -21.4% 10.00 US$150,000
2011-02-02 2011-02-01 PlS Planned sale Graves Zachary M

See Remarks

Officer
72,426 -14.0%
7.22
US$522,916 		72,426 -14.0% 7.22 US$522,916
2011-01-28 2011-01-28 PlS Planned sale Graves Zachary M

Executive VP of Operations

Officer
100 -0.0%
7.00
US$700 		100 -0.0% 7.00 US$700
2010-10-15 2010-10-14 PlS Planned sale Dubberstein Mark

President

Officer
10,600 -3.2%
4.51
US$47,806 		10,600 -3.2% 4.51 US$47,806
2010-05-27 2010-05-27 B Purchase House David W Non-Executive Director
5,000 +10.8%
3.58
US$17,900 		5,000 +10.8% 3.58 US$17,900
2010-06-08 2010-05-13 S Sale Hill Gary C Non-Executive Director
13,740 -47.8%
4.48
US$61,555 		13,740 -47.8% 4.48 US$61,555
2010-05-14 2010-05-13 S Sale Dubberstein Mark

President

Officer
6,000 -1.6%
4.42
US$26,520 		6,000 -1.6% 4.42 US$26,520
2010-05-14 2010-05-12 S Sale Dubberstein Mark

President

Officer
9,000 -2.4%
4.43
US$39,870 		9,000 -2.4% 4.43 US$39,870
2010-04-14 2010-04-13 S Sale Snipes William R Non-Executive Director
6,172 -100.0%
4.83
US$29,811 		6,172 -100.0% 4.83 US$29,811
2010-04-14 2010-04-12 S Sale Snipes William R Non-Executive Director
2,568 -29.4%
5.00
US$12,840 		2,568 -29.4% 5.00 US$12,840
2010-03-01 2010-03-01 PlS Planned sale Dubberstein Mark

President

Officer
14,200 -22.8%
5.06
US$71,852 		14,200 -22.8% 5.06 US$71,852
2010-03-01 2010-03-01 PlS Planned sale Harrison D Frank

Chief Executive Officer

Executive Director
14,400 -6.1%
5.07
US$73,008 		14,400 -6.1% 5.07 US$73,008
2010-03-01 2010-02-26 PlS Planned sale Dubberstein Mark

President

Officer
14,900 -19.3%
4.91
US$73,159 		14,900 -19.3% 4.91 US$73,159
2010-03-01 2010-02-26 PlS Planned sale Starke Steven R

Chief Accounting Officer

Officer
500 -1.7%
4.92
US$2,460 		500 -1.7% 4.92 US$2,460
2010-03-01 2010-02-26 PlS Planned sale Harrison D Frank

Chief Executive Officer

Executive Director
14,700 -5.9%
4.91
US$72,177 		14,700 -5.9% 4.91 US$72,177
2009-08-21 2009-08-21 S Sale WEXFORD CAPITAL LP Large shareholder
9,282 -0.9%
4.28
US$39,737 		9,282 -0.9% 4.28 US$39,737
2009-08-21 2009-08-21 S Sale WEXFORD CAPITAL LP Large shareholder
16,192 -0.9%
4.28
US$69,320 		16,192 -0.9% 4.28 US$69,320
2009-08-21 2009-08-19 S Sale WEXFORD CAPITAL LP Large shareholder
1,316 -0.1%
4.15
US$5,461 		1,316 -0.1% 4.15 US$5,461
2009-08-21 2009-08-19 S Sale WEXFORD CAPITAL LP Large shareholder
2,295 -0.1%
4.15
US$9,524 		2,295 -0.1% 4.15 US$9,524
2009-08-14 2009-08-13 S Sale WEXFORD CAPITAL LP Large shareholder
6,953 -0.7%
4.26
US$29,613 		6,953 -0.7% 4.26 US$29,613
2009-08-14 2009-08-13 S Sale WEXFORD CAPITAL LP Large shareholder
12,130 -0.7%
4.26
US$51,662 		12,130 -0.7% 4.26 US$51,662
2009-08-14 2009-08-12 S Sale WEXFORD CAPITAL LP Large shareholder
2,757 -0.3%
4.30
US$11,864 		2,757 -0.3% 4.30 US$11,864
2009-08-14 2009-08-12 S Sale WEXFORD CAPITAL LP Large shareholder
4,810 -0.3%
4.30
US$20,698 		4,810 -0.3% 4.30 US$20,698
2009-08-10 2009-08-07 S Sale WEXFORD CAPITAL LP Large shareholder
3,119 -0.3%
4.25
US$13,262 		3,119 -0.3% 4.25 US$13,262
2009-08-10 2009-08-07 S Sale WEXFORD CAPITAL LP Large shareholder
5,441 -0.3%
4.25
US$23,135 		5,441 -0.3% 4.25 US$23,135
2009-08-10 2009-08-06 S Sale WEXFORD CAPITAL LP Large shareholder
8,699 -0.9%
4.13
US$35,896 		8,699 -0.9% 4.13 US$35,896
2009-08-10 2009-08-06 S Sale WEXFORD CAPITAL LP Large shareholder
15,176 -0.9%
4.13
US$62,624 		15,176 -0.9% 4.13 US$62,624
2009-08-05 2009-08-05 S Sale WEXFORD CAPITAL LP Large shareholder
4,740 -0.5%
4.21
US$19,941 		4,740 -0.5% 4.21 US$19,941
2009-08-05 2009-08-05 S Sale WEXFORD CAPITAL LP Large shareholder
8,270 -0.5%
4.21
US$34,792 		8,270 -0.5% 4.21 US$34,792
2009-08-05 2009-08-04 S Sale WEXFORD CAPITAL LP Large shareholder
22,780 -2.2%
4.20
US$95,594 		22,780 -2.2% 4.20 US$95,594
2009-08-05 2009-08-04 S Sale WEXFORD CAPITAL LP Large shareholder
39,742 -2.2%
4.20
US$166,773 		39,742 -2.2% 4.20 US$166,773
2009-08-05 2009-08-03 S Sale WEXFORD CAPITAL LP Large shareholder
31,190 -2.9%
4.17
US$130,181 		31,190 -2.9% 4.17 US$130,181
2009-08-05 2009-08-03 S Sale WEXFORD CAPITAL LP Large shareholder
54,418 -2.9%
4.17
US$227,130 		54,418 -2.9% 4.17 US$227,130
2009-07-29 2009-07-27 S Sale WEXFORD CAPITAL LP Large shareholder
1,099 -0.1%
4.16
US$4,576 		1,099 -0.1% 4.16 US$4,576
2009-07-29 2009-07-27 S Sale WEXFORD CAPITAL LP Large shareholder
1,905 -0.1%
4.16
US$7,932 		1,905 -0.1% 4.16 US$7,932
2009-07-24 2009-07-23 S Sale WEXFORD CAPITAL LP Large shareholder
18,098 -1.6%
4.10
US$74,274 		18,098 -1.6% 4.10 US$74,274
2009-07-24 2009-07-23 S Sale WEXFORD CAPITAL LP Large shareholder
31,574 -1.6%
4.10
US$129,580 		31,574 -1.6% 4.10 US$129,580
2009-07-24 2009-07-22 S Sale WEXFORD CAPITAL LP Large shareholder
32,606 -2.9%
4.03
US$131,529 		32,606 -2.9% 4.03 US$131,529
2009-07-24 2009-07-22 S Sale WEXFORD CAPITAL LP Large shareholder
56,883 -2.9%
4.03
US$229,460 		56,883 -2.9% 4.03 US$229,460
2009-07-20 2009-07-20 S Sale WEXFORD CAPITAL LP Large shareholder
9,167 -0.8%
4.06
US$37,183 		9,167 -0.8% 4.06 US$37,183
2009-07-20 2009-07-20 S Sale WEXFORD CAPITAL LP Large shareholder
15,948 -0.8%
4.06
US$64,688 		15,948 -0.8% 4.06 US$64,688
2009-07-20 2009-07-17 S Sale WEXFORD CAPITAL LP Large shareholder
293 -0.0%
4.05
US$1,187 		293 -0.0% 4.05 US$1,187
2009-07-20 2009-07-17 S Sale WEXFORD CAPITAL LP Large shareholder
509 -0.0%
4.05
US$2,061 		509 -0.0% 4.05 US$2,061
2009-07-20 2009-07-16 S Sale WEXFORD CAPITAL LP Large shareholder
7,683 -0.7%
4.00
US$30,754 		7,683 -0.7% 4.00 US$30,754
2009-07-20 2009-07-16 S Sale WEXFORD CAPITAL LP Large shareholder
13,367 -0.7%
4.00
US$53,507 		13,367 -0.7% 4.00 US$53,507
2009-07-15 2009-07-15 S Sale WEXFORD CAPITAL LP Large shareholder
21,797 -1.9%
4.08
US$88,962 		21,797 -1.9% 4.08 US$88,962
2009-07-15 2009-07-15 S Sale WEXFORD CAPITAL LP Large shareholder
37,920 -1.9%
4.08
US$154,767 		37,920 -1.9% 4.08 US$154,767
2009-07-15 2009-07-14 S Sale WEXFORD CAPITAL LP Large shareholder
2,555 -0.2%
4.05
US$10,340 		2,555 -0.2% 4.05 US$10,340
2009-07-15 2009-07-14 S Sale WEXFORD CAPITAL LP Large shareholder
4,445 -0.2%
4.05
US$17,988 		4,445 -0.2% 4.05 US$17,988
2009-07-15 2009-07-13 S Sale WEXFORD CAPITAL LP Large shareholder
49 -0.0%
3.71
US$182 		49 -0.0% 3.71 US$182
2009-07-15 2009-07-13 S Sale WEXFORD CAPITAL LP Large shareholder
85 -0.0%
3.72
US$316 		85 -0.0% 3.72 US$316
2009-07-09 2009-07-09 S Sale WEXFORD CAPITAL LP Large shareholder
5,726 -0.5%
3.69
US$21,152 		5,726 -0.5% 3.69 US$21,152
2009-07-09 2009-07-09 S Sale WEXFORD CAPITAL LP Large shareholder
9,974 -0.5%
3.69
US$36,845 		9,974 -0.5% 3.69 US$36,845
2009-07-09 2009-07-07 S Sale WEXFORD CAPITAL LP Large shareholder
1,349 -0.1%
4.01
US$5,415 		1,349 -0.1% 4.01 US$5,415
2009-07-09 2009-07-07 S Sale WEXFORD CAPITAL LP Large shareholder
2,351 -0.1%
4.01
US$9,438 		2,351 -0.1% 4.01 US$9,438
2009-07-06 2009-07-06 S Sale WEXFORD CAPITAL LP Large shareholder
3,027 -0.3%
4.05
US$12,267 		3,027 -0.3% 4.05 US$12,267
2009-07-06 2009-07-06 S Sale WEXFORD CAPITAL LP Large shareholder
5,274 -0.3%
4.05
US$21,372 		5,274 -0.3% 4.05 US$21,372
2009-07-06 2009-07-01 S Sale WEXFORD CAPITAL LP Large shareholder
6,315 -0.5%
4.32
US$27,305 		6,315 -0.5% 4.32 US$27,305
2009-07-06 2009-07-01 S Sale WEXFORD CAPITAL LP Large shareholder
11,001 -0.5%
4.32
US$47,567 		11,001 -0.5% 4.32 US$47,567
2009-06-29 2009-06-26 S Sale WEXFORD CAPITAL LP Large shareholder
100 -0.0%
4.40
US$440 		100 -0.0% 4.40 US$440
2009-06-29 2009-06-25 S Sale WEXFORD CAPITAL LP Large shareholder
63,032 -5.0%
4.40
US$277,341 		63,032 -5.0% 4.40 US$277,341
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