Affiliations
- Treasurer at Dawson Geophysical Co (DWSN), 2012-08-07
Company | Symbol | Price | Amount | Relationship | Remaining Holdings | Date | Form 4 |
| DWSN | $22.10 | 500 | Officer | 4,813 | 2012-08-07 | Filing |
| DWSN | $35.60 | 375 | Officer | 3,063 | 2012-02-07 | Filing |
| DWSN | $34.40 | 350 | Officer | 3,438 | 2011-11-30 | Filing |