| Company | Symbol | Price | Amount | Relationship | Remaining Holdings | Date | Form 4 |
| DWSN | $7.65 | 6,696 | Officer | 36,511 | 2016-11-15 | Filing |
| DWSN | $7.65 | 3,304 | Officer | 43,207 | 2016-11-14 | Filing |
| DWSN | $7.48 | 10,386 | Officer | 46,511 | 2016-06-03 | Filing |
| DWSN | $7.48 | 276 | Officer | 56,897 | 2016-06-02 | Filing |