The following table details the insider trading activities
(stock purchases, stock sales, and stock option exercises) by Nelson Alan Mark since 2006.
The trader's CIK number is 1282932.
At the time of the last reporting, Nelson Alan Mark was the Vice President of Dawson Geophysical Co. (stock ticker symbol DWSN).
Also see all insider trading activities at Dawson Geophysical Co.
| Insider Buying | Insider Sales | Option Exercises | |||||
|---|---|---|---|---|---|---|---|
| Year | Symbol | Shares | Value | Shares | Value | Shares | Value |
| 2012 | DWSN | 0 | $0 | 1,000 | $26,226 | 0 | $0 |
| 2009 | DWSN | 0 | $0 | 2,000 | $56,880 | 2,000 | $35,820 |
| 2008 | DWSN | 0 | $0 | 1,000 | $78,000 | 0 | $0 |
| 2007 | DWSN | 0 | $0 | 3,750 | $255,825 | 3,750 | $19,537 |
| 2006 | DWSN | 0 | $0 | 1,250 | $39,375 | 1,250 | $10,812 |
| Trade Date | Symbol | Trade Type | Shares | Price ($) | Value ($) |
|---|---|---|---|---|---|
| 2012-05-07 | DWSN | Sale | 1,000 | 26.23 | 26,226 |
| 2009-06-01 | DWSN | Sale | 2,000 | 28.44 | 56,880 |
| 2009-06-01 | DWSN | Option Ex | 2,000 | 17.91 | 35,820 |
| 2008-05-13 | DWSN | Sale | 1,000 | 78.00 | 78,000 |
| 2007-08-03 | DWSN | Sale | 3,750 | 68.22 | 255,825 |
| 2007-08-03 | DWSN | Option Ex | 3,750 | 5.21 | 19,537 |
| 2006-01-04 | DWSN | Sale | 1,250 | 31.50 | 39,375 |
| 2006-01-04 | DWSN | Option Ex | 1,250 | 8.65 | 10,812 |
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 Nelson Alan Mark (Vice President of Dawson Geophysical Co at the time of this reporting) see the Securities and Exchange Commission (SEC) website.