X0305 4 2012-03-31 0 0001030749 GULFMARK OFFSHORE INC GLF 0001206113 STREETER BRUCE A 10111 RICHMOND AVE, STE.340 HOUSTON TX 77042 1 1 0 0 President and CEO Common Stock 2012-03-31 4 A 0 572 37.09 A 522798 D The transaction reported here is made pursuant to the GulfMark Offshore, Inc. Employee Stock Purchase Plan. /s/ Bruce Streeter 2012-04-03