Form 4 Tracker
Great Lakes Dredge & Dock CORP
GLDD

39 insider filings · Latest: Apr 1, 2026

Common Stock Transactions
Txn DateAcceptedInsiderTypeSharesAvg PriceValueShares OwnedFiling
Dec 10, 2025Dec 10 10:21 PMJOHANSON DAVID
Proposed Sale
2,100$13.96$29.3K

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Dec 3, 2025Dec 3 9:56 PMJOHANSON DAVID
Proposed Sale
10,000$13.01$130.1K

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Aug 11, 2025Aug 11 8:30 PMKornblau Scott Lee
Proposed Sale
59,805$11.48$686.6K

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Jun 3, 2025Jun 3 7:56 PMSteger Ronald
Proposed Sale
5,000$11.59$57.9K

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May 6, 2025May 6 9:09 PMBEYKO ELENI
Proposed Sale
22,579$10.31$232.7K

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Nov 14, 2024Nov 14 9:31 PMDICKERSON LAWRENCE R
Proposed Sale
15,936$12.04$191.8K

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Nov 12, 2024Nov 12 9:21 PMDICKERSON LAWRENCE R
Proposed Sale
5,323$12.61$67.1K

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Nov 11, 2024Nov 12 2:56 PMSteger Ronald
Proposed Sale
12,000$12.76$153.1K

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Nov 11, 2024Nov 12 2:08 PMKATHLEEN SHANAHAN FAMILY TRUST
Proposed Sale
23,238$12.63$293.5K

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Stock Options & Derivatives
Txn DateAcceptedInsiderTypeSharesExercise PriceShares OwnedFiling
Apr 1, 2026Apr 1 8:04 PMRonald StegerDirector
Disposition
45,068$17.000(D)

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Mar 31, 2026Apr 1 8:04 PMRonald StegerDirector
Grant/Award
1,62545,068(D)

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Mar 31, 2026Apr 1 7:59 PMKathleen M ShanahanDirector
Grant/Award
1,48510,336(D)

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Mar 31, 2026Apr 1 7:59 PMKathleen M ShanahanDirector
Disposition
10,336$17.000(D)

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Apr 1, 2026Apr 1 7:57 PMLawrence R DickersonDirector
Disposition
76,962$17.000(D)

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Mar 31, 2026Apr 1 7:57 PMLawrence R DickersonDirector
Grant/Award
2,93876,962(D)

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Jan 15, 2026Jan 20 9:55 PMKathleen M ShanahanDirector
Option Exercise
5,8518,851(D)

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