Form SCHEDULE 13G - Statement of Beneficial Ownership by Certain Investors:
SEC Accession No. 0002100119-26-000665
Filing Date
2026-04-30
Accepted
2026-04-30 10:41:59
Documents
1
X0202

Document Format Files

Seq Description Document Type Size
1 primary_doc.html SCHEDULE 13G  
1 primary_doc.xml SCHEDULE 13G 5709
  Complete submission text file 0002100119-26-000665.txt   7589
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 (Subject) CIK: 0001372020 (see all company filings)

EIN.: 205336063 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SCHEDULE 13G | Act: 34 | File No.: 005-82317 | Film No.: 26921165
SIC: 1600 Heavy Construction Other Than Bldg Const - Contractors
(CF Office: 05 Real Estate & Construction)

Mailing Address 100 VANGUARD BLVD MALVERN PA 19355
Business Address 100 VANGUARD BLVD MALVERN PA 19355 610-669-6148
VANGUARD CAPITAL MANAGEMENT LLC (Filed by) CIK: 0002100119 (see all company filings)

EIN.: 392877419 | State of Incorp.: PA | Fiscal Year End: 1231
LEI: 529900ZEWTRLEJ6XE960
Type: SCHEDULE 13G