# Filing Detail

Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0000950170-25-045260
Filing Date
2025-03-26
Accepted
2025-03-26 16:18:40
Documents
14

Document Format Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
1 | DEFA14A | gldd-20250319.htm iXBRL | DEFA14A | 23863
2 | GRAPHIC | img154176660_0.jpg | GRAPHIC | 32810
3 | GRAPHIC | img154176660_1.jpg | GRAPHIC | 524761
4 | GRAPHIC | img154176660_2.jpg | GRAPHIC | 398312
| Complete submission text file | 0000950170-25-045260.txt |  | 2231603

Data Files

Seq | Description | Document | Type | Size
--- | --- | --- | --- | ---
5 | XBRL TAXONOMY EXTENSION SCHEMA WITH EMBEDDED LINKBASES DOCUMENT | gldd-20250319.xsd | EX-101.SCH | 7002
16 | EXTRACTED XBRL INSTANCE DOCUMENT | gldd-20250319_htm.xml | XML | 1318

Mailing Address 9811 KATY FREEWAY SUITE 1200 HOUSTON TX 77024
Business Address 9811 KATY FREEWAY SUITE 1200 HOUSTON TX 77024 (346) 359-1010
Great Lakes Dredge & Dock CORP (Filer) CIK: 0001372020 (see all company filings)

EIN.: 205336063 | State of Incorp.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-33225 | Film No.: 25773528
SIC: 1600 Heavy Construction Other Than Bldg Const - Contractors
(CF Office: 05 Real Estate & Construction)