← Back
$GLDD All transactions

Great Lakes Dredge & Dock CORP

A

$ Value

$0

Shares

1,829

Price

$0

Filed

Jan 5

Insider

Name

Armstrong Dana A

Title

CIK

0001907154

Roles

Director

Transaction Details

Transaction Date

2025-12-31

Code

A

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

8,436

Filing Info

Accession No.

0001193125-26-002840

Form Type

4

Issuer CIK

0001372020

Armstrong Dana A's History

Date Ticker Type Value
2026-04-01 GLDD U
2026-03-31 EE F $66K
2026-03-05 EE F $208K
2026-03-05 EE A $0
2026-02-18 EE A $0
2026-02-18 EE F $265K
2025-12-31 GLDD A $0
2025-09-30 GLDD A $0
2025-06-30 GLDD A $0
2025-03-31 GLDD A $0

Other Insiders at GLDD (90d)

Insider Bought Sold Last
DICKERSON LAWRENCE R 2026-04-01
Shanahan Kathleen M 2026-04-01
Petterson Lasse
CEO & President
2026-04-01
Steger Ronald 2026-04-01
Shipp Earl L 2026-04-01
Kornblau Scott Lee
SVP & CFO
2026-04-01
HANSON WILLIAM H
SVP, Market Development
2026-04-01
Schiffer Vivienne
SVP, CLO, CCO & Corp Secretary
2026-04-01
Armstrong Dana A 2026-04-01
BEYKO ELENI
SVP - Offshore Energy
2026-04-01
GUNSTEN CHRISTOPHER
SVP-Proj Svcs & Fleet Engineer
2026-04-01
JOHANSON DAVID
SVP-Project Acquisition & Ops
2026-04-01
BAYER RYAN
VP & CAO
2026-04-01