0001209191-21-061527.txt : 20211025 0001209191-21-061527.hdr.sgml : 20211025 20211025170914 ACCESSION NUMBER: 0001209191-21-061527 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20211021 FILED AS OF DATE: 20211025 DATE AS OF CHANGE: 20211025 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: DICKERSON LAWRENCE R CENTRAL INDEX KEY: 0001249072 FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-33225 FILM NUMBER: 211344950 MAIL ADDRESS: STREET 1: 15415 KATY FREEWAY STE 100 CITY: HOUSTON STATE: TX ZIP: 77094 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: Great Lakes Dredge & Dock CORP CENTRAL INDEX KEY: 0001372020 STANDARD INDUSTRIAL CLASSIFICATION: HEAVY CONSTRUCTION OTHER THAN BUILDING CONST - CONTRACTORS [1600] IRS NUMBER: 205336063 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 9811 KATY FREEWAY STREET 2: SUITE 1200 CITY: HOUSTON STATE: TX ZIP: 77024 BUSINESS PHONE: (346) 359-1010 MAIL ADDRESS: STREET 1: 9811 KATY FREEWAY STREET 2: SUITE 1200 CITY: HOUSTON STATE: TX ZIP: 77024 FORMER COMPANY: FORMER CONFORMED NAME: Great Lakes Dredge & Dock Holdings Corp. DATE OF NAME CHANGE: 20060808 4 1 doc4.xml FORM 4 SUBMISSION X0306 4 2021-10-21 0 0001372020 Great Lakes Dredge & Dock CORP GLDD 0001249072 DICKERSON LAWRENCE R C/O GREAT LAKES DREDGE & DOCK CORP., 9811 KATY FREEWAY, SUITE 1200 HOUSTON TX 77024 1 0 0 0 Common Stock 2021-10-21 4 S 0 1518 14.59 D 85648 D The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 9, 2020. /s/Vivienne R. Schiffer, by Power of Attorney 2021-10-25