X0306 4 2018-07-31 0 0000866829 HELIX ENERGY SOLUTIONS GROUP INC HLX 0001041815 KRATZ OWEN E 3505 W SAM HOUSTON PARKWAY N. SUITE 400 HOUSTON TX 77043 1 1 0 0 PRESIDENT & CEO Common Stock 2018-07-31 4 S 0 118536 10.15 D 6965598 D Common Stock 2018-08-01 4 S 0 152996 10.05 D 6812602 D The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.04 to $10.37, inclusive. The reporting person undertakes to provide Helix Energy Solutions Group, Inc., any security holder of Helix Energy Solutions Group, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote of this Form 4. Mr. Kratz disclaims beneficial ownership of 1,000,000 shares included in this amount, which shares are held by Joss Investments Limited Partnership, an entity in which he is a general partner. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $10.04 to $10.12, inclusive. The reporting person undertakes to provide Helix Energy Solutions Group, Inc., any security holder of Helix Energy Solutions Group, Inc., or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in this footnote of this Form 4. /s/ Alisa B. Johnson by power of attorney 2018-08-02