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$GLDD All transactions

Great Lakes Dredge & Dock CORP

M

$ Value

$0

Shares

2,849

Price

$0

Filed

Jan 20

Insider

Name

Shanahan Kathleen M

Title

CIK

0001292085

Roles

Director

Transaction Details

Transaction Date

2026-01-15

Code

M

Table

Non-Derivative

Ownership

Direct

Equity Swap

No

Shares After

73,373

Footnotes

Each Deferred Stock Unit ("DSUs") represents the right to receive, at settlement, one share of the Issuer's Common Stock. | These DSUs, which were granted in 2024, vest in two equal installments on January 15 of 2026 and 2027 or, if earlier, on the date on which the Reporting Person's board service ends. | These DSUs, which were granted in 2025, vest in three equal installments on January 15 of 2026, 2027 and 2028 or, if earlier, on the date on which the Reporting Person's board service ends.

Filing Info

Accession No.

0001193125-26-016755

Form Type

4

Issuer CIK

0001372020

Shanahan Kathleen M's History

Date Ticker Type Value
2026-04-01 GLDD U
2026-03-31 GLDD A $0
2026-03-31 GLDD D
2026-03-02 HQI A
2026-01-15 GLDD M $0
2026-01-15 GLDD M $0
2026-01-15 GLDD M $0
2026-01-15 GLDD M $0
2025-12-31 GLDD A $0
2025-11-07 HQI A

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