HELIX ENERGY SOLUTIONS GROUP INC

Helix Energy Solutions Group, Inc. (together with its subsidiaries, unless context requires otherwise, Helix, the Company, we, us or our ) was incorporated in 1979 and in 1983 was re-incorporated in the state of Minnesota. We are an international offshore energy services company that provides specialty services to the offshore energy industry, with a focus on well intervention, robotics and decommissioning operations. Our services are key in supporting a global energy transition by maximizing production of existing oil and gas reserves, decommissioning end-of-life oil and gas fields and supporting renewable energy developments. See Our Operations below for additional information regarding business operations. Our principal executive offices are located at 3505 West Sam Houston Parkway North, Suite 400, Houston, Texas 77043; our phone number is 281-618-0400. Our common stock trades on the New York Stock Exchange ( NYSE ) under the ticker symbol HLX. Our Chief Executive Officer submitted the annual CEO certification to the NYSE in May 2025 as required under its Listed Company Manual. Our principal executive officer and our principal financial officer have made the certifications required under Section 302 of the Sarbanes-Oxley Act, which are included as exhibits to this Annual Report. Please refer to the subsection Certain Definitions on page 14 for definitions of additional terms commonly used in this Annual Report. Unless otherwise indicated, any reference to Notes herein refers to Notes to Consolidated Financial Statements in Item 8.