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4//SEC Filing

Armstrong Dana A 4

Accession 0000950170-25-092319

CIK 0001372020other

View on SEC.gov Company Profile

Filed

Jun 30, 8:00 PM ET

Accepted

Jul 1, 5:05 PM ET

Size

4.6 KB

Accession

0000950170-25-092319

Insider Transaction Report

Form 4

Period: 2025-06-30

Great Lakes Dredge & Dock CORPGLDD

Armstrong Dana A

Director

Transactions

Award
Common Stock
2025-06-30+1,969→ 4,605 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: Jun 30, 8:00 PM ET
Accepted: Jul 1, 5:05 PM ET
Size: 4.6 KB

View on SEC.gov