| Type | Value |
|---|---|
| cik | 0000351231 |
| ticker | DWSN |
| Date | Type | Insider | Qty | Price | Signals |
|---|---|---|---|---|---|
| 11 Feb 2015 | OTHER | Vander Ploeg Mark A | 6,321 | — | |
| 11 Feb 2015 | OTHER | Thomas James Wentity | 22,991 | — | |
| 11 Feb 2015 | OTHER | Thomas James Wentity | 5,000 | — | deriv |
| 11 Feb 2015 | OTHER | TOBIAS C RAYentity | 39,713 | — | |
| 11 Feb 2015 | OTHER | TOBIAS C RAYentity | 10,000 | — | deriv |
| 11 Feb 2015 | OTHER | HAGAN CHRISTINA W | 66,834 | — | |
| 11 Feb 2015 | OTHER | HAGAN CHRISTINA W | 10,000 | — | deriv |
| 11 Feb 2015 | OTHER | THOMPSON TIM C | 14,324 | — | |
| 11 Feb 2015 | OTHER | COOPER CRAIG W | 16,651 | — | |
| 11 Feb 2015 | OTHER | HOOVER GARY M | 14,324 | — | |
| 11 Feb 2015 | OTHER | JUMPER STEPHEN C | 77,798 | — | |
| 11 Feb 2015 | OTHER | JUMPER STEPHEN C | 15,000 | — | deriv |
| 11 Feb 2015 | OTHER | North Ted R | 10,324 | — | |
| 04 Dec 2013 | GRANT_AWARD | Thomas James Wentity | 2,158 | 0.00 USD | |
| 05 Dec 2014 | GRANT_AWARD | Thomas James Wentity | 5,774 | 0.00 USD | |
| 04 Dec 2013 | GRANT_AWARD | HAGAN CHRISTINA W | 2,346 | 0.00 USD | |
| 05 Dec 2014 | GRANT_AWARD | HAGAN CHRISTINA W | 6,276 | 0.00 USD | |
| 05 Dec 2014 | GRANT_AWARD | JUMPER STEPHEN C | 15,464 | 0.00 USD | |
| 04 Dec 2013 | GRANT_AWARD | JUMPER STEPHEN C | 5,782 | 0.00 USD | |
| 05 Dec 2014 | GRANT_AWARD | TOBIAS C RAYentity | 7,907 | 0.00 USD | |
| 04 Dec 2013 | GRANT_AWARD | TOBIAS C RAYentity | 2,956 | 0.00 USD | |
| 01 Dec 2014 | GRANT_AWARD | Vander Ploeg Mark A | 1,571 | 0.00 USD | |
| 01 Dec 2014 | GRANT_AWARD | HOOVER GARY M | 2,694 | 0.00 USD | |
| 01 Dec 2014 | GRANT_AWARD | North Ted R | 2,694 | 0.00 USD | |
| 01 Dec 2014 | GRANT_AWARD | THOMPSON TIM C | 2,694 | 0.00 USD |