Great Lakes Dredge & Dock CORP — Director's Dealing 2012

Mar 9, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Great Lakes Dredge & Dock CORP (GLDD)
CIK: 0001372020
Period of Report: 2012-03-07

Reporting Person: Biemeck Bruce J (Director, President & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-03-07	Common Stock	A	24391	—	Acquired	95633	Direct

Footnotes

F1: Represents gross number of performance vesting restricted stock units granted on June 27, 2011 which remain eligible to vest based on pre-approved performance metrics as measured over the performance period. The restrictive stock units vest on June 27, 2014.