Live feed12:13:17·1715dINSIDERFilingvia QuantisnowSEC Form 4: Vander Ploeg Mark A was granted 2,988 units of Dawson Geophysical Company-Common Stock $0.01 par value, increasing direct ownership by 11% to 31,099 unitsByQuantisnow·Wall Street's wire, on your screen.DWSN· Dawson Geophysical CompanyEnergyOriginal source