Great Lakes Dredge & Dock Corporation (NASDAQ:GLDD) Q1 2019 Earnings Conference Call April 30, 2019 10:00 AM ET Company Participants Abby Sullivan – Manager of Investor Relations Lasse Petterson – Chief Executive Officer Mark Marinko – Chief Financial Officer Conference Call Participants Poe Fratt – Noble Capital Markets DeForest Hinman – Walthausen & Co. Jon Tanwanteng – CJS Securities Matt Baxter – Wynne Capital Operator Good day, ladies and gentlemen, and welcome to the Great Lakes Dredge & Dock Corporat ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2018 or ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission file number: 001-33225 Great Lakes Dredge & Dock Corporation (Exact name of registrant as specified in its charter) Delaware 20-5336063 (State or oth ...

Great Lakes Dredge & Dock Corporation (NASDAQ:GLDD) Q4 2018 Results Earnings Conference Call February 20, 2019 10:00 AM ET Company Participants Abby Sullivan - Manager of Investor Relations, Financial Planning & Analysis Lasse Petterson - Chief Executive Officer, Director Mark Marinko - Senior Vice President, Chief Financial Officer Conference Call Participants Andrew Casella - Deutsche Bank John Tanwanteng - CJS Securities Joseph Farricielli - William Blair Poe Fratt - Noble Capital Markets DeForest Hinman ...