Vivienne Schiffer - 23 Feb 2026 Form 4 Insider Report for Great Lakes Dredge & Dock CORP (GLDD)

Role
SVP, CLO, CCO & Corp Secretary
Signature
/s/Vivienne R. Schiffer, by Power of Attorney
Issuer symbol
GLDD
Transactions as of
23 Feb 2026
Net transactions value
$0
Form type
4
Filing time
25 Feb 2026, 17:04:04 UTC
Previous filing
12 May 2025
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Schiffer Vivienne SVP, CLO, CCO & Corp Secretary C/O GREAT LAKES DREDGE & DOCK CORP., 9811 KATY FREEWAY, SUITE 1200, HOUSTON /s/Vivienne R. Schiffer, by Power of Attorney 25 Feb 2026 0001835547

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GLDD Common Stock Award +19,149 +23% 101,330 23 Feb 2026 Direct F1
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents restricted stock units that vest in three equal annual installments beginning on February 23, 2027.