Great Lakes Dredge & Dock CORP — Director's Dealing 2023

May 20, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Great Lakes Dredge & Dock CORP (GLDD)
CIK: 0001372020
Period of Report: 2023-05-17

Reporting Person: Levenson Ryan (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-05-17	Common Stock	P	5207	$6.6357	Acquired	205307	Indirect
2023-05-18	Common Stock	P	6860	$6.7472	Acquired	212167	Indirect
2023-05-19	Common Stock	P	121721	$6.8229	Acquired	333888	Indirect

Footnotes

F1: Represents the weighted average price. The shares were purchased in multiple transactions ranging from $6.58 to $6.65, inclusive. Upon request by the Commission staff, the issuer or security holder of the issuer, the reporting person will provide information regarding the number of shares acquired of at each separate price.

F2: Represents shares owned directly by Privet Fund LP ("Privet Fund"). Mr. Levenson, solely by virtue of his position as the managing member of Privet Fund Management LLC ("Privet Fund Management"), the general partner and investment manager of Privet Fund, may be deemed to beneficially own the shares owned directly by Privet Fund for purposes of Section 16. Mr. Levenson disclaims beneficial ownership of such shares except to the extent of his pecuniary interest therein.

F3: Represents the weighted average price. The shares were purchased in multiple transactions ranging from $6.73 to $6.79, inclusive. Upon request by the Commission staff, the issuer or security holder of the issuer, the reporting person will provide information regarding the number of shares acquired of at each separate price.

F4: Represents the weighted average price. The shares were purchased in multiple transactions ranging from $6.735 to $6.90, inclusive. Upon request by the Commission staff, the issuer or security holder of the issuer, the reporting person will provide information regarding the number of shares acquired of at each separate price.