Scott Lee Kornblau - 16 Mar 2026 Form 4 Insider Report for Great Lakes Dredge & Dock CORP (GLDD)

Role
SVP & CFO
Signature
/s/Vivienne R. Schiffer, by Power of Attorney
Issuer symbol
GLDD
Transactions as of
16 Mar 2026
Net transactions value
$0
Form type
4
Filing time
18 Mar 2026, 17:06:00 UTC
Previous filing
25 Feb 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Kornblau Scott Lee SVP & CFO C/O GREAT LAKES DREDGE & DOCK CORP., 9811 KATY FREEWAY, SUITE 1200, HOUSTON /s/Vivienne R. Schiffer, by Power of Attorney 18 Mar 2026 0001724302

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction GLDD Common Stock Tax liability -4,719 -3.4% $16.93* 134,014 16 Mar 2026 Direct
transaction GLDD Common Stock Award +22,265 +17% 156,279 16 Mar 2026 Direct F1
transaction GLDD Common Stock Tax liability -8,762 -5.6% $16.93* 147,517 16 Mar 2026 Direct
transaction GLDD Common Stock Tax liability -2,926 -2% $16.93* 144,591 16 Mar 2026 Direct
transaction GLDD Common Stock Award +14,868 +10% 159,459 16 Mar 2026 Direct F2
transaction GLDD Common Stock Tax liability -5,851 -3.7% $16.93* 153,608 16 Mar 2026 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Represents shares awarded pursuant to satisfaction of performance conditions per the terms of Mr. Kornblau's performance-based restricted stock units granted on March 15, 2023.
F2 Represents shares awarded pursuant to satisfaction of performance conditions per the terms of Mr. Kornblau's performance-based restricted stock units granted on March 15, 2024.