X0306 4 2014-03-24 0001030749 GULFMARK OFFSHORE INC GLF 0001391071 Kneen Quintin 842 W. SAM HOUSTON PARKWAY N. STE 400 HOUSTON TX 77024 1 1 President & CEO Common Stock 2014-03-24 4 F 0 5181 44.6050 D 35601 D Transaction was a withholding of portion of vested restricted share units to satisfy the reporting person's tax withholding obligations upon vesting, pursuant to the award agreement and associated equity incentive plan under which the award was granted. /s/ Quintin Kneen 2014-03-26