| | | | | | | | | | | | | | | | | | | | | | |
Ownership Document
|
| Schema Version: X0306 |
| Document Type: 4 |
| Period of Report: 9/30/22 |
| Not Subject to Section 16: 0 |
| Issuer: |
| Issuer CIK: 1372020 |
| Issuer Name: Great Lakes Dredge & Dock CORP |
| Issuer Trading Symbol: GLDD |
| Reporting Owner: |
| Reporting Owner ID: |
| | Owner CIK: 1194765 |
| | Owner Name: STEUERT D MICHAEL |
| Reporting Owner Address: |
| | Owner Street 1: C/O GREAT LAKES DREDGE & DOCK CORP., |
| | Owner Street 2: 9811 KATY FREEWAY, SUITE 1200 |
| | Owner City: HOUSTON |
| | Owner State: TX |
| | Owner ZIP Code: 77024 |
| | Owner State Description: |
| Reporting Owner Relationship: |
| | Is Director? Yes |
| | Is Officer? No |
| | Is Ten Percent Owner? No |
| | Is Other? No |
| Non-Derivative Table: |
| Non-Derivative Transaction: |
| | Security Title: |
| | | Value: Common Stock |
| | Transaction Date: |
| | | Value: 9/30/22 |
| | Deemed Execution Date: |
| | Transaction Coding: |
| | | Transaction Form Type: 4 |
| | | Transaction Code: A |
| | | Equity Swap Involved? No |
| | Transaction Timeliness: |
| | | Value: |
| | Transaction Amounts: |
| | | Transaction Shares: |
| Value: 2,870 |
| | | Transaction Price Per Share: |
| Value: 0.00 |
| | | Transaction Acquired-Disposed Code: |
| Value: A |
| | Post-Transaction Amounts: |
| | | Shares Owned Following Transaction: |
| Value: 62,408 |
| | Ownership Nature: |
| | | Direct or Indirect Ownership: |
| Value: D |
| Footnotes: |
| Remarks: |
| Owner Signature: |
| Signature Name: /s/Vivienne R. Schiffer, by Power of Attorney |
| Signature Date: 10/4/22 |
