0000950170-24-100666.txt : 20240826 0000950170-24-100666.hdr.sgml : 20240826 20240826185512 ACCESSION NUMBER: 0000950170-24-100666 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20240823 FILED AS OF DATE: 20240826 DATE AS OF CHANGE: 20240826 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Petterson Lasse CENTRAL INDEX KEY: 0001455941 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-33225 FILM NUMBER: 241242817 MAIL ADDRESS: STREET 1: 2103 RESEARCH FOREST DRIVE CITY: THE WOODLANDS STATE: TX ZIP: 77380 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] ORGANIZATION NAME: 05 Real Estate & Construction 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 ownership.xml 4 X0508 4 2024-08-23 0001372020 Great Lakes Dredge & Dock CORP GLDD 0001455941 Petterson Lasse C/O GREAT LAKES DREDGE & DOCK CORP. 9811 KATY FREEWAY, SUITE 1200 HOUSTON TX 77024 true true false false CEO & President true Common Stock 2024-08-23 4 S false 46510 9.0799 D 931101.29 D Common Stock 2024-08-26 4 S false 28709 9.2432 D 902392.29 D Common Stock 902392.29 D The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on May 16, 2024. Represents the weighted average price. The shares were sold in multiple transactions ranging from $9.00 to $9.19, inclusive. Upon request by the Commission staff, the issuer or security holder of the issuer, the reporting person will provide information regarding the number of shares disposed at each separate price. Represents the weighted average price. The shares were sold in multiple transactions ranging from $9.09 to $9.39, inclusive. Upon request by the Commission staff, the issuer or security holder of the issuer, the reporting person will provide information regarding the number of shares disposed at each separate price. /s/Vivienne R. Schiffer, by Power of Attorney 2024-08-26