Great Lakes Dredge & Dock Corporation
US ˙ NasdaqGS ˙ US3906071093

SecurityGLDD / Great Lakes Dredge & Dock Corporation
InsiderScott Lee Kornblau
This page shows the track record and history of Kornblau Scott Lee insider trades in Great Lakes Dredge & Dock Corporation. The SEC defines Insiders as officers, directors, or significant investors (greater than 10% ownership) in a company. It is illegal for insiders to make trades in their companies based on material, non-public information ("MNPI"). This does not mean it is illegal for them to make any trades in their own companies. However, they must report all trades to the SEC via a Form 4.
Insider Purchases - Short Term Profit Analysis

In this section, we analyze the profitability of every unplanned, open-market insider purchase made by Scott Lee Kornblau in GLDD / Great Lakes Dredge & Dock Corporation. This analysis helps to understand if the insider consistently generates abnormal returns, and is worth following. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Max
Price at
Max
Max
Profit ($)
Max Return (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

GLDD / Great Lakes Dredge & Dock Corporation Insider Trades
Insider Sales - Short Term Loss Analysis

In this section, we analyze the short-term loss avoidance of every unplanned, open-market insider sale made by Scott Lee Kornblau in GLDD / Great Lakes Dredge & Dock Corporation. A consistent pattern of loss avoidance may suggest that future sale transactions may predict declines in price. This analysis is for one-year following each trade, and the results are theoretical.

The following table shows the most recent open market purchases that were not part of an automatic trading plan.

Trade Date Reported
Shares
Reported
Price
Adjusted
Shares
Adjusted
Price
Cost Basis Days to
Min
Price at
Min
Max Loss
Avoided ($)
Max Loss
Avoided (%)
There are no known unplanned open-market trades for this insider

Adjusted Price is the split-adjusted price. Adjusted Shares is the split-adjusted shares.

GLDD / Great Lakes Dredge & Dock Corporation Insider Trades
Insider Transaction History
File
Date
Trade
Date
Form Insider Ticker Security Title Code 10b5-1 Direct Exercise
Price
Unit
Price
Units
Changed
Value
Changed (1K)
Remaining
Options
Remaining
Shares
2025-08-13 2025-08-11 4 Kornblau Scott Lee GLDD Common Stock S - Sale D 11.4760 -59,805 -686 112,130
2025-05-12 2025-05-08 4 Kornblau Scott Lee GLDD Common Stock A - Award D 25,058 171,935
2025-05-07 2025-05-05 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 9.5400 -1,070 -10 146,877
2025-05-07 2025-05-05 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 9.5400 -1,676 -16 147,947
2025-03-18 2025-03-17 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 8.7000 -11,805 -103 149,623
2025-03-18 2025-03-17 4 Kornblau Scott Lee GLDD Common Stock A - Award D 30,000 161,428
2025-03-18 2025-03-17 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 8.7000 -5,822 -51 131,428
2025-03-18 2025-03-17 4 Kornblau Scott Lee GLDD Common Stock A - Award D 14,794 137,250
2025-03-18 2025-03-17 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 8.7000 -2,926 -25 122,456
2025-03-18 2025-03-17 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 8.7000 -8,657 -75 125,382
2025-03-18 2025-03-17 4 Kornblau Scott Lee GLDD Common Stock A - Award D 22,000 134,039
2025-03-18 2025-03-17 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 8.7000 -4,718 -41 112,039
2024-05-07 2024-05-06 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 7.0400 -1,676 -12 116,757
2024-04-29 2024-04-25 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 7.1900 -19,675 -141 118,433
2024-04-29 2024-04-25 4 Kornblau Scott Lee GLDD Common Stock A - Award D 50,000 138,108
2024-03-19 2024-03-15 4 Kornblau Scott Lee GLDD Common Stock A - Award D 22,305 88,108
2024-03-19 2024-03-15 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 8.6200 -4,718 -41 65,803
2024-03-19 2024-03-15 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 8.6200 -4,780 -41 70,521
2024-03-19 2024-03-15 4 Kornblau Scott Lee GLDD Common Stock A - Award D 12,145 75,301
2024-03-06 2024-03-05 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 8.7000 -1,850 -16 63,156
2023-05-09 2023-05-05 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 5.7500 -1,691 -10 62,405
2023-03-17 2023-03-15 4 Kornblau Scott Lee GLDD Common Stock A - Award D 35,968 64,096
2023-03-08 2023-03-06 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 5.7800 -2,133 -12 25,643
2022-06-10 2022-05-05 4/A Kornblau Scott Lee GLDD Common Stock A - Award D 12,776 27,776
2022-05-09 2022-05-05 4 Kornblau Scott Lee GLDD Common Stock A - Award D 12,341 27,341
2022-03-10 2022-03-07 4 Kornblau Scott Lee GLDD Common Stock F - Taxes D 14.7800 -1,961 -29 13,039
2021-10-05 2021-10-01 4 Kornblau Scott Lee GLDD Common Stock A - Award D 15.1000 15,000 226 15,000
P
Köp på öppna marknaden eller privat köp av icke-derivatsäkerhet
S
Köp på öppna marknaden eller privat försäljning av icke-derivatsäkerhet
A
Bevilja, tilldelning eller annat förvärv av värdepapper från företaget (såsom en option)
C
Omvandling av derivat
D
Försäljning eller överföring av värdepapper tillbaka til företaget
F
Betalning av lösenpris eller skatteskuld med del av värdepapper som erhållits från bolaget
G
Överlåtelse av värdepapper från eller till insidern
K
Aktieswappar och liknande säkringsaffärer
M
Utövande eller omvandling av derivatsäkerhet som erhållits från företaget (som en option)
V
En transaktion friviligt rapporterad på schema 4
J
Andra (med en fotnot som beskriver transaktionen)