X0303 4 2010-05-14 0000708819 MCDERMOTT INTERNATIONAL INC MDR 0001207166 JOHNSON STEPHEN MARCUM C/O MCDERMOTT INTERNATIONAL, INC. 777 N. ELDRIDGE PARKWAY HOUSON TX 77079 0 1 0 0 President and CEO - JRM Common Stock 2010-05-14 4 M 0 30995 0 A 49395 D Common Stock 2010-05-14 4 F 0 11297 23.98 D 38098 D Common Stock 612 I 401 K Shares Restricted Stock Units 2010-05-14 4 M 0 30995 0 D 2010-05-14 2012-05-14 Common Stock 30995 61990 D Based upon units held in 401K Plan and the fair market value of Common Stock as of May 14, 2010. Each restricted stock unit represents a contingent right to receive one share of MDR common stock. The restricted stock units vest in three equal annual installments beginning May 14, 2010. Liane K. Hinrichs, by power of attorney 2010-05-18