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Ownership Document
|
| Schema Version: X0306 |
| Document Type: 4 |
| Period of Report: 6/14/21 |
| 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: 1384117 |
| | Owner Name: Simonelli David E |
| 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? No |
| | Is Officer? Yes |
| | Is Ten Percent Owner? No |
| | Is Other? No |
| | Officer Title: Chief Operating Officer |
| Non-Derivative Table: |
| Non-Derivative Transaction: |
| | Security Title: |
| | | Value: Common Stock |
| | Transaction Date: |
| | | Value: 6/14/21 |
| | Deemed Execution Date: |
| | Transaction Coding: |
| | | Transaction Form Type: 4 |
| | | Transaction Code: S |
| | | Equity Swap Involved? No |
| | Transaction Timeliness: |
| | | Value: |
| | Transaction Amounts: |
| | | Transaction Shares: |
| Value: 8,735 |
| | | Transaction Price Per Share: |
| Value: 14.465 |
| Footnote ID: F1 |
| | | Transaction Acquired-Disposed Code: |
| Value: D |
| | Post-Transaction Amounts: |
| | | Shares Owned Following Transaction: |
| Value: 240,704 |
| | Ownership Nature: |
| | | Direct or Indirect Ownership: |
| Value: D |
| Footnotes: |
| Footnote - F1: Represents the weighted average price. The shares were sold in multiple transactions ranging from $14.45 to $14.48, inclusive. Upon request by the Commission staff, the issuer or security holder of the issuer, the reporting person will provide information regarding the number of shares disposed of at each separate price. |
| Remarks: |
| Owner Signature: |
| Signature Name: /s/Vivienne R. Schiffer, by Power of Attorney |
| Signature Date: 6/16/21 |
