X0306 4/A 2014-03-31 2014-04-01 0001030749 GULFMARK OFFSHORE INC GLF 0001552839 Rosenwasser David B 842 W. SAM HOUSTON PARKWAY N. STE 400 HOUSTON TX 77024 1 EVP & COO Common Stock 2014-03-31 4 A 0 548 38.20 A 54165 D The transaction reported here is made pursuant to the Gulfmark Offshore, Inc. Employee Stock Purchase Plan /s/ David Rosenwasser 2014-04-02