Great Lakes Dredge & Dock CORP — Director's Dealing 2021

Jun 29, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Great Lakes Dredge & Dock CORP (GLDD)
CIK: 0001372020
Period of Report: 2021-06-25

Reporting Person: HANSON WILLIAM H (SVP, Gov't Relations & Bus Dev)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-06-25	Common Stock	M	2631	$5.33	Acquired	27914	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-06-25	Employee Stock Option	$5.33	M	2631	Disposed	2021-06-27	Common Stock (2631)	Direct

Footnotes

F1: Represents an exercise of vested employee stock options granted on June 27, 2011 under the Great Lakes Dredge & Dock Corporation 2007 Long-Term Incentive Plan.

F2: The options vested in three equal installments beginning June 27, 2012.