X0306 4 2019-05-30 0 0000799165 DAWSON GEOPHYSICAL CO DWSN 0001249462 WHITENER WAYNE A 101 E. PARK BLVD. STE 955 PLANO TX 75074-0846 1 0 0 0 Dawson Geophysical Company-Common Stock $0.01 par value 2019-05-30 4 F 0 1540 2.275 D 43669 D Represents the surrender of shares of Common Stock to satisfy tax withholding obligations in connection with the vesting of restricted stock issued to the Reporting Person under the Amended and Restated Dawson Geophysical Company 2006 Stock and Performance Incentive Plan. Wayne A. Whitener 2019-05-31