# Great Lakes Dredge & Dock CORP (GLDD) — merger [completed]
Source: sec.gov · situation sit_bf2d907c834976738729 · public 8727729288587257929 · retrieved 2026-08-20T13:41:45.296Z

## Overview
The Company was listed on the NYSE in 1971, and in 1985, purchased through a friendly stock offer by ITEL.

## Terms
- Counterparty: Aldabra Acquisition Corporation · Deal value: $160.0M · Consideration: stock · Stake: 67%

## Key dates
- Announced 2006-06-22 · Expiry 2007-02-24 · Completed 2026-04-01

## Timeline
- 2006-06-22 · 425 (0001104659-06-043196): 425 - GREAT LAKES DREDGE & DOCK CORP — *Great Lakes Dredge & Dock Corporation is a heavy construction contractor specializing in dredging and related maritime services in the navigable waters of the United States.* On June 20, 2006, GLDD Acquisitions Corp. (Great Lakes Dredge & Dock's parent) signed an Agreement and Plan of Merger with Aldabra Acquisition Corporation, a blank-check company. Under the merger structure, GLDD Acquisitions will merge with an Aldabra subsidiary, with GLDD Acquisitions shareholders receiving Aldabra common stock. Aldabra will then merge into a new holding company to be renamed Great Lakes Dredge & Dock Corporation. The surviving corporation will be owned approximately 67% by affiliates of Madison Dearborn Partners, LLC and approximately 5% by Great Lakes management (assuming no conversion rights exercise). The transaction consideration is the greater of (i) $160 million divided by the average closing price of Aldabra common stock for the ten trading days ending three trading days prior to closing, or (ii) 27,273,000 shares of Aldabra common stock. Aldabra's available cash will be used to pay down senior bank term debt; the Company's $175 million of 7½% Senior Subordinated Notes due 2013 will remain outstanding. The transaction is subject to Hart-Scott-Rodino Act review, Aldabra shareholder approval, and the condition that fewer than 20% of IPO shareholders convert their shares to cash. Closing is anticipated in fall 2006.
  https://www.sec.gov/Archives/edgar/data/885538/0001104659-06-043196.txt
- 2026-03-13 · SC 14D9/A (0001193125-26-106270): SC 14D9/A - Great Lakes Dredge & Dock CORP — *The Company was listed on the NYSE in 1971, and in 1985, purchased through a friendly stock offer by ITEL.*
  https://www.sec.gov/Archives/edgar/data/1372020/0001193125-26-106270.txt
- 2026-03-18 · SC 14D9/A (0001193125-26-114045): SC 14D9/A - Great Lakes Dredge & Dock CORP — *The Company was listed on the NYSE in 1971, and in 1985, purchased through a friendly stock offer by ITEL.*
  https://www.sec.gov/Archives/edgar/data/1372020/0001193125-26-114045.txt
- 2026-03-23 · SC 14D9/A (0001193125-26-119984): SC 14D9/A - Great Lakes Dredge & Dock CORP — *The Company was listed on the NYSE in 1971, and in 1985, purchased through a friendly stock offer by ITEL.*
  https://www.sec.gov/Archives/edgar/data/1372020/0001193125-26-119984.txt
- 2026-03-27 · SC 14D9/A (0001193125-26-129489): SC 14D9/A - Great Lakes Dredge & Dock CORP — *The Company was listed on the NYSE in 1971, and in 1985, purchased through a friendly stock offer by ITEL.*
  https://www.sec.gov/Archives/edgar/data/1372020/0001193125-26-129489.txt
- 2026-04-01 · SC 14D9/A (0001193125-26-135900): SC 14D9/A - Great Lakes Dredge & Dock CORP — *The Company was listed on the NYSE in 1971, and in 1985, purchased through a friendly stock offer by ITEL.*
  https://www.sec.gov/Archives/edgar/data/1372020/0001193125-26-135900.txt

## Citations
- 0001104659-06-043196 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000110465906043196
- 0001193125-26-106270 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000119312526106270
- 0001193125-26-114045 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000119312526114045
- 0001193125-26-119984 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000119312526119984
- 0001193125-26-129489 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000119312526129489
- 0001193125-26-135900 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000119312526135900