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

Jan 4, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Great Lakes Dredge & Dock CORP (GLDD)
CIK: 0001372020
Period of Report: 2011-12-30

Reporting Person: Mackie Douglas B (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-12-30	Common Stock	A	2810	—	Acquired	106995	Direct