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

Mar 23, 2012

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: Great Lakes Dredge & Dock CORP (GLDD)
CIK: 0001372020
Period of Report: 2012-03-15

Reporting Person: Pegg Stephen Elra (Senior Vice President)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	41327	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$5.33	2021-06-27	Common Stock (20592)		Direct

Footnotes

F1: Of these shares, 17,208 are represented by restricted stock units. 7,500 vest on March 7, 2013 and 9,708 vest on June 27, 2014.

F2: The option vests in three equal annual installments beginning June 27, 2012.