Kathleen M. Shanahan - 28 Mar 2024 Form 4 Insider Report for Great Lakes Dredge & Dock CORP (GLDD)

Role: Director
Signature: /s/Vivienne R. Schiffer, by Power of Attorney
Issuer symbol: GLDD
Transactions as of: 28 Mar 2024
Net transactions value: $0
Form type: 4
Filing time: 01 Apr 2024, 18:42:43 UTC
Previous filing: 28 Feb 2024
Next filing: 15 May 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	GLDD	Common Stock						90,913	28 Mar 2024	Direct

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	GLDD	Deferred Stock Units	Award	$0	+2,286		$0.000000	2,286	28 Mar 2024	Common Stock	2,286		Direct	F1

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Deferred Stock Units ("DSUs") granted March 28, 2024 and deferred pursuant to the Company's Director Deferral Plan. The DSUs will be payable in common stock on a 1-for-1 basis in three equal annual installments beginning January 15, 2025.