Insider Transactions Reported by 19 Insiders of Great Lakes Dredge & Dock CORP

Symbol
GLDD on Nasdaq
Location
Houston, TX

Insiders trading volume in the past year

Great Lakes Dredge & Dock CORP executives and other stock owners filed with the SEC include:

Name Relationship Holdings Value Past Year Net Change Change % Report Date
Lasse Petterson CEO & President, Director $19,124,593 23 Feb 2026
Ryan Levenson Director $3,904,516 28 Mar 2024
Scott Lee Kornblau Svp & Cfo $2,053,251 -$686,322 -25% 23 Feb 2026
Eleni Beyko SVP - Offshore Energy $1,803,143 -$231,600 -11% 16 Mar 2026
David E. Simonelli Chief Operating Officer $1,677,519 09 May 2022
Lawrence R. Dickerson Director $1,576,207 31 Dec 2025
David Johanson SVP-Project Acquisition & Ops $1,568,078 -$159,463 -9.2% 23 Feb 2026
Vivienne Schiffer SVP, CLO, CCO & Corp Secretary $1,499,684 23 Feb 2026
Christopher Gunsten SVP-Proj Svcs & Fleet Engineer $1,479,112 16 Mar 2026
Kathleen M. Shanahan Director $1,096,861 15 Jan 2026
William H. Hanson SVP, Market Development $1,020,988 23 Feb 2026
D. Michael Steuert Director $776,118 31 Mar 2025
Ronald Steger Director $585,334 -$57,925 -9% 31 Dec 2025
Earl L. Shipp Director $512,706 31 Dec 2025
Ryan Bayer Vp & Cao $469,737 16 Mar 2026
Todd M. Lightfoot Chief Accounting Officer $455,514 05 May 2023
James Tastard Svp & Chrao $271,101 05 May 2023
Elaine J. Dorward-King Director $243,646 30 Jun 2023
Dana A. Armstrong Director $101,485 31 Dec 2025

Recent Insider Transactions by Companies or Individuals for Great Lakes Dredge & Dock CORP

Showing up to 300 most recent insider transactions from the last 12 months.

Insider Symbol Class Transaction % Value $ * Price $ Shares Shares Owned Date Ownership
Christopher Gunsten GLDD Common Stock Award 22.8% 21,090 113,368 16 Mar 2026 Direct
Christopher Gunsten GLDD Common Stock Tax liability -9.61% -10,394 97,736 16 Mar 2026 Direct
Eleni Beyko GLDD Common Stock Award 21.9% 24,606 137,083 16 Mar 2026 Direct
Eleni Beyko GLDD Common Stock Tax liability -9.52% -12,545 119,189 16 Mar 2026 Direct
Ryan Bayer GLDD Common Stock Award 7.12% 2,170 32,627 16 Mar 2026 Direct
Ryan Bayer GLDD Common Stock Tax liability -6.55% -2,136 30,457 16 Mar 2026 Direct
Vivienne Schiffer GLDD Common Stock Award 23.3% 19,149 101,330 23 Feb 2026 Direct
Lasse Petterson GLDD Common Stock Award 11.5% 132,825 1,292,202 23 Feb 2026 Direct
Scott Lee Kornblau GLDD Common Stock Award 23.7% 26,603 138,733 23 Feb 2026 Direct
Christopher Gunsten GLDD Common Stock Award 16.3% 13,988 99,940 23 Feb 2026 Direct
David Johanson GLDD Common Stock Award 15.2% 13,988 105,951 23 Feb 2026 Direct
William H. Hanson GLDD Common Stock Award 0.01% 8.74 68,986 23 Feb 2026 Direct
Eleni Beyko GLDD Common Stock Award 15.5% 16,320 121,834 23 Feb 2026 Direct
Ryan Bayer GLDD Common Stock Award 29.2% 7,165 31,739 23 Feb 2026 Direct
Kathleen M. Shanahan GLDD Common Stock Options Exercise 8.3% 5,851 76,375 15 Jan 2026 Direct
Kathleen M. Shanahan GLDD Deferred Stock Units Options Exercise -39.8% -5,851 8,851 15 Jan 2026 Direct
Kathleen M. Shanahan GLDD Deferred Stock Units Award 15.1% 1,925 14,702 31 Dec 2025 Direct
Ronald Steger GLDD Deferred Stock Units Award 5.09% 2,106 43,443 31 Dec 2025 Direct
Lawrence R. Dickerson GLDD Deferred Stock Units Award 5.42% 3,806 74,024 31 Dec 2025 Direct
Earl L. Shipp GLDD Common Stock Award 4.48% 1,829 42,619 31 Dec 2025 Direct
Dana A. Armstrong GLDD Common Stock Award 27.7% 1,829 8,436 31 Dec 2025 Direct
David Johanson GLDD Common Stock Sale -2.23% $29,308 $13.96 -2,100 91,963 10 Dec 2025 Direct
David Johanson GLDD Common Stock Sale -9.61% $130,155 $13.02 -10,000 94,063 03 Dec 2025 Direct
Ronald Steger GLDD Deferred Stock Units Award 5.9% 2,304 41,337 30 Sep 2025 Direct
Earl L. Shipp GLDD Common Stock Award 5.16% 2,002 40,790 30 Sep 2025 Direct
Kathleen M. Shanahan GLDD Deferred Stock Units Award 19.7% 2,106 12,777 30 Sep 2025 Direct
Lawrence R. Dickerson GLDD Deferred Stock Units Award 6.31% 4,165 70,218 30 Sep 2025 Direct
Dana A. Armstrong GLDD Common Stock Award 43.5% 2,002 6,607 30 Sep 2025 Direct
Scott Lee Kornblau GLDD Common Stock Sale -34.8% $686,322 $11.48 -59,805 112,130 11 Aug 2025 Direct
Ronald Steger GLDD Deferred Stock Units Award 6.16% 2,266 39,033 30 Jun 2025 Direct
Earl L. Shipp GLDD Common Stock Award 5.35% 1,969 38,788 30 Jun 2025 Direct
Kathleen M. Shanahan GLDD Deferred Stock Units Award 24.1% 2,071 10,671 30 Jun 2025 Direct
Lawrence R. Dickerson GLDD Deferred Stock Units Award 6.61% 4,097 66,053 30 Jun 2025 Direct
Dana A. Armstrong GLDD Common Stock Award 74.7% 1,969 4,605 30 Jun 2025 Direct
Ronald Steger GLDD Common Stock Sale -19.7% $57,925 $11.58 -5,000 20,404 03 Jun 2025 Direct
Eleni Beyko GLDD Common Stock Award 79.8% 40,000 90,138 08 May 2025 Direct
Lasse Petterson GLDD Common Stock Award 12.1% 125,145 1,159,377 08 May 2025 Direct
Scott Lee Kornblau GLDD Common Stock Award 17.1% 25,058 171,935 08 May 2025 Direct
Vivienne R. Schiffer GLDD Common Stock Award 28.1% 18,035 82,181 08 May 2025 Direct
Christopher Gunsten GLDD Common Stock Award 18.1% 13,179 85,952 08 May 2025 Direct
David Johanson GLDD Common Stock Award 14.5% 13,179 104,063 08 May 2025 Direct
William H. Hanson GLDD Common Stock Award 13.6% 8,237 68,977 08 May 2025 Direct
Eleni Beyko GLDD Common Stock Award 17.1% 15,376 105,514 08 May 2025 Direct
Ryan Bayer GLDD Common Stock Award 70.1% 10,126 24,574 08 May 2025 Direct
Eleni Beyko GLDD Common Stock Sale -31% $231,600 $10.26 -22,579 50,138 06 May 2025 Direct
Vivienne R. Schiffer GLDD Common Stock Tax liability -2.66% -1,753 64,146 05 May 2025 Direct
Lasse Petterson GLDD Common Stock Tax liability -0.44% -4,541 1,034,232 05 May 2025 Direct
Scott Lee Kornblau GLDD Common Stock Tax liability -1.84% -2,746 146,877 05 May 2025 Direct
David Johanson GLDD Common Stock Tax liability -0.9% -825 90,884 05 May 2025 Direct
William H. Hanson GLDD Common Stock Tax liability -0.98% -600 60,740 05 May 2025 Direct
* An asterisk sign (*) next to the price indicates that the price is likely invalid.