SCHIFFER VIVIENNE

PrivateCIK: 1835547
Location

OAKBROOK TERRACE, IL

SCHIFFER VIVIENNE (SVP, CLO, CCO & Corp Secretary) received a stock award from GREAT LAKES DREDGE & DOCK CORP

Compensation award — not an open‑market transaction. Less informative as a directional signal.

A · 1 award
InsiderSCHIFFER VIVIENNECIK 1835547
Officer· SVP, CLO, CCO & Corp Secretary
Since Dec 2020
-115.87K
Net shares
Net seller
$0.00
Total acquired
0
Open market trades
0B · 0S
2
Total transactions
28.95K acquired · 144.82K disposed
Non-Derivative Transactions2

Common Stock

Direct
A · Award

Shares

+28.95K

Price / share

Trade value

% of position

25.0%
4/1/2026
115.87K144.82K

Common Stock

Direct
U · U

Shares

144.82K

Price / share

Trade value

% of position

New position
4/1/2026
144.82K0.00
Total

Net shares

115.87K

Net value

$0.00

Derivative Transactions0
No derivative transactions reported
SCHIFFER VIVIENNE — Insider Transaction (Form 4) Filed Apr 1, 2026 | Finecho