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4//SEC Filing

Armstrong Dana A 4

Accession 0001193125-26-002840

CIK 0001372020other

View on SEC.gov Company Profile

Filed

Jan 4, 7:00 PM ET

Accepted

Jan 5, 5:52 PM ET

Size

4.6 KB

Accession

0001193125-26-002840

Insider Transaction Report

Form 4

Period: 2025-12-31

Great Lakes Dredge & Dock CORPGLDD

Armstrong Dana A

Director

Transactions

Award
Common Stock
2025-12-31+1,829→ 8,436 total

Documents

1 file

4
ownership.xmlPrimary
4

Issuer

Great Lakes Dredge & Dock CORP

CIK 0001372020

Entity typeother

Related Parties

1

filerCIK 0001907154

Filing Metadata

Form type: 4
Filed: Jan 4, 7:00 PM ET
Accepted: Jan 5, 5:52 PM ET
Size: 4.6 KB

View on SEC.gov