Common Contracts

INVESTOR RIGHTS AGREEMENT

Investor Rights Agreement • December 26th, 2006 • Aldabra Acquisition CORP • Heavy construction other than bldg const - contractors • Delaware

• Contract Type
  Investor Rights Agreement
• Filed
  December 26th, 2006
• Company
  Aldabra Acquisition CORP
• Industry
  Heavy construction other than bldg const - contractors
• Jurisdiction
  Delaware

THIS INVESTOR RIGHTS AGREEMENT (this “Agreement”) is made as of December 26, 2006, by and among Aldabra Acquisition Corporation, a Delaware corporation (the “Company”); Madison Dearborn Capital Partners IV, L.P., a Delaware corporation (“MDCP”), certain directors and officers of the Company who are shareholders of the Company on the date hereof and who are signatories to this Agreement (the “Aldabra Shareholders”), each of the Persons listed on the signature pages hereto as “Other Investors” (the “Other Investors”), and for the purposes set forth in Section 13(e), Great Lakes Dredge & Dock Holdings Corp. (“Holdco”). Certain capitalized terms have the meanings set forth in Section 12 hereof. Capitalized terms used, but not otherwise defined, herein shall have the meanings set forth in the Merger Agreement (as hereinafter defined).

INVESTOR RIGHTS AGREEMENT

Investor Rights Agreement • August 24th, 2006 • Aldabra Acquisition CORP • Blank checks • Delaware

• Contract Type
  Investor Rights Agreement
• Filed
  August 24th, 2006
• Company
  Aldabra Acquisition CORP
• Industry
  Blank checks
• Jurisdiction
  Delaware

THIS INVESTOR RIGHTS AGREEMENT (this "Agreement") is made as of [ ], by and among Aldabra Acquisition Corporation, a Delaware corporation (the "Company"); Madison Dearborn Capital Partners IV, L.P., a Delaware corporation ("MDCP"), certain directors and officers of the Company who are shareholders of the Company on the date hereof and who are signatories to this Agreement (the "Aldabra Shareholders"), each of the Persons listed on the signature pages hereto as "Other Investors" (the "Other Investors"), and for the purposes set forth in Section 13(e), Great Lakes Dredge & Dock Holdings Corp. ("Holdco"). Certain capitalized terms have the meanings set forth in Section 12 hereof. Capitalized terms used, but not otherwise defined, herein shall have the meanings set forth in the Merger Agreement (as hereinafter defined).