David M. Demshur serves as Executive at CORE LABORATORIES N V, where they oversee executive responsibilities. Since joining the company, David M. Demshur has executed 327 insider transactions totaling $86.3M, demonstrating a bearish approach to their equity position. Their most recent transaction on Feb 29, 2008 involved selling 560 shares valued at $68.0K.
David M. Demshur currently holds 365,844 shares of CORE LABORATORIES N V (CLB), valued at approximately $0. This represents their equity stake as Executive.
Based on SEC Form 4 filings, David M. Demshur has been a net seller of CLB stock. They have purchased $0 and sold $86.3M worth of shares.
David M. Demshur's most recent insider trade was on Feb 29, 2008, when they sold 560 shares at $121.35 per share.
Get notified when new Form 4 filings are submitted
| $122.71 |
| Discretionary |
| Feb 29, 2008 | CLB | $705.9K | Sale | 5,753 | $122.70 | Discretionary |
| Feb 29, 2008 | CLB | $245 | Sale | 2 | $122.69 | Discretionary |
| Feb 29, 2008 | CLB | $36.8K | Sale | 300 | $122.66 | Discretionary |
| Feb 29, 2008 | CLB | $66.6K | Sale | 543 | $122.63 | Discretionary |
| Feb 29, 2008 | CLB | $32.5K | Sale | 265 | $122.62 | Discretionary |
| Feb 29, 2008 | CLB | $56.6K | Sale | 462 | $122.61 | Discretionary |
| Feb 29, 2008 | CLB | $309.9K | Sale | 2,528 | $122.60 | Discretionary |
| Feb 29, 2008 | CLB | $49.0K | Sale | 400 | $122.54 | Discretionary |
| Feb 29, 2008 | CLB | $83.3K | Sale | 680 | $122.50 | Discretionary |
| Feb 29, 2008 | CLB | $98.0K | Sale | 800 | $122.44 | Discretionary |
| Feb 29, 2008 | CLB | $244.8K | Sale | 2,000 | $122.40 | Discretionary |
| Feb 29, 2008 | CLB | $24.4K | Sale | 200 | $122.09 | Discretionary |
| Feb 29, 2008 | CLB | $12.2K | Sale | 100 | $122.07 | Discretionary |
| Feb 29, 2008 | CLB | $23.2K | Sale | 190 | $122.06 | Discretionary |
| Feb 29, 2008 | CLB | $108.6K | Sale | 890 | $122.05 | Discretionary |
| Feb 29, 2008 | CLB | $214.4K | Sale | 1,763 | $121.60 | Discretionary |
| Feb 29, 2008 | CLB | $12.2K | Sale | 100 | $121.56 | Discretionary |
| Feb 29, 2008 | CLB | $243.1K | Sale | 2,000 | $121.55 | Discretionary |
| Feb 29, 2008 | CLB | $24.3K | Sale | 200 | $121.54 | Discretionary |
| Feb 29, 2008 | CLB | $60.8K | Sale | 500 | $121.53 | Discretionary |
| Feb 29, 2008 | CLB | $60.8K | Sale | 500 | $121.52 | Discretionary |
| Feb 29, 2008 | CLB | $48.6K | Sale | 400 | $121.51 | Discretionary |
| Feb 29, 2008 | CLB | $60.7K | Sale | 500 | $121.45 | Discretionary |
| Feb 29, 2008 | CLB | $303.8K | Sale | 2,500 | $121.50 | Discretionary |
| Feb 29, 2008 | CLB | $63.7K | Sale | 520 | $122.43 | Discretionary |
| Feb 29, 2008 | CLB | $24.6K | Sale | 200 | $122.77 | Discretionary |
| Feb 29, 2008 | CLB | $12.3K | Sale | 100 | $122.78 | Discretionary |
| Feb 29, 2008 | CLB | $24.6K | Sale | 200 | $122.79 | Discretionary |