Insider · CIK 0001481594
Clark William Anthony
Positions
- DAWSON GEOPHYSICAL CO · DWSN(6 filings)
Recent Filings (6)
- Form 4DAWSON GEOPHYSICAL CO+150,000 sh
- Form 4DAWSON GEOPHYSICAL CO+550 sh
- Form 4DAWSON GEOPHYSICAL CO+500 sh
- Form 4DAWSON GEOPHYSICAL CO+50 sh
- Form 4DAWSON GEOPHYSICAL CO+600 sh
- Form 4DAWSON GEOPHYSICAL CO+150 sh