Kathleen M. Shanahan - Mar 31, 2025 Form 4/A - Amendment Insider Report for Great Lakes Dredge & Dock CORP (GLDD)

Role
Director
Signature
/s/Vivienne R. Schiffer, by Power of Attorney
Stock symbol
GLDD
Transactions as of
Mar 31, 2025
Transactions value $
$0
Form type
4/A - Amendment
Date filed
4/28/2025, 06:16 PM
Date Of Original Report
Apr 1, 2025
Previous filing
Jan 16, 2025
Next filing
May 8, 2025
SEC
View on sec.gov

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 +2.9K +50.93% $0.00 8.6K Mar 31, 2025 Common Stock 2.9K Direct F1, F2
* 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 31, 2025 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, 2026.
F2 This amendment is being filed to correct the number of shares issued. Due to an administrative error, the original filing inadvertently overstated the number of shares.