Vander Ploeg Mark A 4
4 · DAWSON GEOPHYSICAL CO · Filed Jan 2, 2018
Insider Transaction Report
Form 4
Vander Ploeg Mark A
Director
Transactions
- Award
Dawson Geophysical Company-Common Stock $0.01 par value
2017-12-29+2,318→ 29,605 total
4 · DAWSON GEOPHYSICAL CO · Filed Jan 2, 2018
Dawson Geophysical Company-Common Stock $0.01 par value