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 · 2 awards
InsiderSCHIFFER VIVIENNECIK 1835547
Officer· SVP, CLO, CCO & Corp Secretary
Since Dec 2020
+14.54K
Net shares
Net buyer
$171.4K
Total sold
0
Open market trades
0B · 0S
6
Total transactions
24.67K acquired · 10.13K disposed
Non-Derivative Transactions6

Common Stock

Direct
F · Tax Withholding

Shares

2.06K

Price / share

$16.93

Trade value

$34.88K

% of position

2.0%
3/16/2026
101.33K99.27K

Common Stock

Direct
A · Award

Shares

+14.21K

Price / share

Trade value

% of position

14.3%
3/16/2026
99.27K113.48K

Common Stock

Direct
F · Tax Withholding

Shares

3.46K

Price / share

$16.93

Trade value

$58.59K

% of position

3.0%
3/16/2026
113.48K110.02K

Common Stock

Direct
F · Tax Withholding

Shares

2.06K

Price / share

$16.93

Trade value

$34.84K

% of position

1.9%
3/16/2026
110.02K107.96K

Common Stock

Direct
A · Award

Shares

+10.45K

Price / share

Trade value

% of position

9.7%
3/16/2026
107.96K118.42K

Common Stock

Direct
F · Tax Withholding

Shares

2.55K

Price / share

$16.93

Trade value

$43.10K

% of position

2.2%
3/16/2026
118.42K115.87K
Total

Net shares

+14.54K

Net value

-$171.42K

Derivative Transactions0
No derivative transactions reported
SCHIFFER VIVIENNE — Insider Transaction (Form 4) Filed Mar 18, 2026 | Finecho