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Great Lakes Dredge & Dock CORP — Investor Relations & Filings

Ticker · GLDD ISIN · US3906071093 LEI · 549300H65E3MZ1CX0P05 US Construction
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Filings indexed 1,349 across all filing types
Latest filing 2026-04-01 Regulatory Filings
Country US United States of America
Listing US GLDD

About Great Lakes Dredge & Dock CORP

https://gldd.com/

Great Lakes Dredge & Dock Corporation is a leading provider of dredging services. The company specializes in projects designed to improve, protect, and restore marine infrastructure and coastlines. Core activities include capital dredging for port and channel deepening, maintenance dredging for waterways, coastal protection, beach restoration, and land reclamation. The company also undertakes environmental projects such as restoring reservoir capacity and developing barrier islands. GLDD operates a diverse fleet of specialized equipment, including hopper, mechanical, and hydraulic dredges, and is a prominent domestic contractor with a long history of performing significant international projects.

Recent filings

Filing Released Lang Actions
S-8 POS - Great Lakes Dredge & Dock CORP (0001372020) (Filer)
Regulatory Filings Classification · 95% confidence The document is a Post-Effective Amendment to multiple Form S-8 Registration Statements filed with the SEC by Great Lakes Dredge & Dock Corporation. It details the deregistration of securities previously registered under various employee stock plans. The document references the termination of these registration statements following a merger transaction. The content is regulatory in nature, focusing on the removal of securities from registration and compliance with SEC rules. It does not contain financial statements, earnings data, or management discussion. It is not a report like an Annual Report or Interim Report, nor is it a presentation or voting result. It is a regulatory filing related to securities registration and deregistration. Therefore, the appropriate classification is Regulatory Filings (RNS). The document length (7252 characters) and detailed content support this classification with high confidence.
2026-04-01 English
S-8 POS - Great Lakes Dredge & Dock CORP (0001372020) (Filer)
Regulatory Filings Classification · 100% confidence The document is a Post-Effective Amendment to Form S-8 Registration Statements filed with the SEC. It details the deregistration of securities previously registered under multiple Form S-8 filings related to employee stock purchase and long-term incentive plans. The document references the termination of these registration statements following a merger transaction. It is not a financial report, earnings release, or management discussion, but rather a regulatory filing related to securities registration and deregistration. The document is about amendments to registration statements and deregistration of securities, which fits the category of Regulatory Filings (RNS). The document length is 7,252 characters, which is substantive but does not contain financial statements or analysis. Therefore, the appropriate classification is Regulatory Filings (RNS).
2026-04-01 English
S-8 POS - Great Lakes Dredge & Dock CORP (0001372020) (Filer)
Regulatory Filings Classification · 95% confidence The document is a Post-Effective Amendment to multiple Form S-8 Registration Statements filed with the SEC by Great Lakes Dredge & Dock Corporation. It specifically states that it removes from registration all shares of common stock previously registered under these Form S-8 registration statements. The document references the termination of the effectiveness of these registration statements following a merger transaction. Form S-8 is used for securities registration related to employee benefit plans, and post-effective amendments to these forms are filings that update or terminate registration statements. This document is not a financial report, earnings release, or management discussion, but rather a regulatory filing related to securities registration and deregistration. It is not a report publication announcement since it contains substantive information about deregistration and the merger impact. Therefore, the appropriate classification is Regulatory Filings (RNS). The document length (7252 characters) and content support this classification with high confidence.
2026-04-01 English
S-8 POS - Great Lakes Dredge & Dock CORP (0001372020) (Filer)
Regulatory Filings Classification · 95% confidence The document is a Post-Effective Amendment to multiple Form S-8 Registration Statements filed with the SEC by Great Lakes Dredge & Dock Corporation. It details the deregistration of securities previously registered under various employee stock purchase and long-term incentive plans. The document references the termination of these registration statements following a merger transaction. The content is regulatory in nature, focusing on the removal of securities from registration and compliance with SEC rules. It does not contain financial statements, earnings data, or management discussion. It is not a report like an Annual Report or Interim Report, nor is it a presentation or voting result. It is a regulatory filing related to securities registration and deregistration. Therefore, the appropriate classification is Regulatory Filings (RNS). The document length (7252 characters) and detailed content support this classification with high confidence.
2026-04-01 English
S-8 POS - Great Lakes Dredge & Dock CORP (0001372020) (Filer)
Regulatory Filings Classification · 95% confidence The document is a Post-Effective Amendment to multiple Form S-8 Registration Statements filed with the SEC. It details the deregistration of securities previously registered under various employee stock plans due to a merger transaction. The document is a formal SEC filing related to securities registration and deregistration, specifically amendments to registration statements. It does not contain financial statements, earnings data, or management discussion. It is not a report like an Annual Report or Interim Report, nor is it a presentation or voting result. It is a regulatory filing related to securities registration status and corporate actions. Therefore, the appropriate classification is Regulatory Filings (RNS). The document length and content support this classification with high confidence.
2026-04-01 English
S-8 POS - Great Lakes Dredge & Dock CORP (0001372020) (Filer)
Regulatory Filings Classification · 100% confidence The document is a Post-Effective Amendment to multiple Form S-8 Registration Statements filed with the SEC. It details the deregistration of securities previously registered under various employee stock plans due to a merger transaction. The document is a formal SEC filing that terminates the effectiveness of these registration statements and removes unsold securities from registration. It does not contain financial statements, earnings data, or management discussion, but rather is a regulatory filing related to securities registration and deregistration. Therefore, it fits best under the category of Regulatory Filings (RNS). The document length is 7,252 characters, which is sufficient for a substantive filing but the content is clearly a regulatory amendment rather than a financial report or announcement of a report.
2026-04-01 English

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