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

Oct 1, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Great Lakes Dredge & Dock CORP (GLDD)
CIK: 0001372020
Period of Report: 2012-09-28

Reporting Person: Mackie Douglas B (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-09-28	Common Stock	A	2516	—	Acquired	66544	Direct