Insider Stock Trading History of Demshur David M


The following table details the trading activities (stock purchases, stock sales, and stock option exercises) reported to the Securities and Exchange Commission (SEC) by insider Demshur David M since year 2005. The trader's CIK number is 1282547. At the time of this reporting, Demshur David M is the Chief Executive Officer of Core Laboratories N V . (stock ticker symbol CLB). See this page for all insider trading activities at Core Laboratories N V .


Stock purchases, sales, and option exercises reported by insider Demshur David M since 2005.
  Trade Date   Symbol Company Name (Issuer) Trade Type     Shares       Price ($)   Value ($)
2016-12-30 CLB Core Laboratories N V Option Ex 19,946 .00 0
2016-12-30 CLB Core Laboratories N V Option Ex 19,946 .00 0
2015-12-31 CLB Core Laboratories N V Option Ex 29,218 .00 0
2014-12-31 CLB Core Laboratories N V Option Ex 29,835 .00 0
2013-12-31 CLB Core Laboratories N V Option Ex 30,635 .00 0
2012-12-31 CLB Core Laboratories N V Option Ex 27,600 .00 0
2011-07-27 CLB Core Laboratories N V Sale 42,930 108.45 4,655,758
2011-07-26 CLB Core Laboratories N V Sale 127,814 109.35 13,976,333
2011-07-25 CLB Core Laboratories N V Sale 29,256 110.98 3,246,713
2010-07-29 CLB Core Laboratories N V Sale 63,259 76.36 4,830,330
2010-07-30 CLB Core Laboratories N V Sale 36,741 75.96 2,790,736
2010-02-16 CLB Core Laboratories N V Sale 150,000 123.45 18,517,350
2009-10-29 CLB Core Laboratories N V Sale 100,000 107.46 10,746,000
2008-02-29 CLB Core Laboratories N V Sale 26,733 122.04 3,262,415
2008-02-29 CLB Core Laboratories N V Sale 14,045 122.91 1,726,284
2008-02-28 CLB Core Laboratories N V Sale 33,124 124.68 4,129,900
2008-02-28 CLB Core Laboratories N V Sale 16,876 125.12 2,111,609
2008-02-29 CLB Core Laboratories N V Sale 9,222 121.19 1,117,641
2007-08-17 CLB Core Laboratories N V Sale 23,904 102.58 2,452,000
2007-08-17 CLB Core Laboratories N V Sale 13,514 103.53 1,399,144
2007-08-14 CLB Core Laboratories N V Sale 6,716 109.28 733,897
2007-08-15 CLB Core Laboratories N V Sale 25,500 103.94 2,650,419
2007-02-21 CLB Core Laboratories N V Option Ex 555,000 14.34 7,955,925
2007-02-22 CLB Core Laboratories N V Sale 18,000 79.33 1,427,904
2007-02-22 CLB Core Laboratories N V Sale 52,600 80.08 4,212,050
2007-02-22 CLB Core Laboratories N V Sale 29,400 79.66 2,342,121
2007-01-31 CLB Core Laboratories N V Option Ex 40,000 .00 0
2006-05-01 CLB Core Laboratories N V Option Ex 5,500 8.38 46,062
2006-01-17 CLB Core Laboratories N V Option Ex 40,000 .00 0

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 Demshur David M (Chief Executive Officer of Core Laboratories N V at the time of this reporting) see the Securities and Exchange Commission (SEC) website.