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Great Lakes Dredge & Dock (GLDD) - 2021 Q3 - Quarterly Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Delaware 20-5336063 (State or other jurisdiction of incorporation or organization) 9811 Katy Freeway, Suite 1200, Houston, TX 77024 (Address of principal executiv ...