Great Lakes Dredge & Dock CORP (GLDD)

Latest Insider Confidence Score

2026Q1

49.3
Bearish

Company insider confidence (by quarter)

2013Q3 2026Q1

Largest shareholders

Insider Role (last 12 mo) Shares held Filed at
Petterson Lasse CEO 1,159,377.29 May 12, 2025
Levenson Ryan Director 333,888 Apr 1, 2024
Berger Jonathan W CEO 268,726 Mar 18, 2014
Simonelli David E COO 248,107 Jun 10, 2022
Marinko Mark W. CFO 223,774 Mar 16, 2021

Recent buy/sell transactions

Exec date Filing date Insider Role Signal Confidence Shares % of shares Under plan? Amount (USD)
Feb 23, 2026 Feb 25, 2026 Schiffer Vivienne SVP, CLO, CCO & Corp Secretary Neutral 90.0 +19,149 23.30% ✗ -
Feb 23, 2026 Feb 25, 2026 Petterson Lasse CEO Neutral 90.0 +132,825 11.46% ✗ -
Feb 23, 2026 Feb 25, 2026 Kornblau Scott Lee CFO Neutral 90.0 +26,603 23.73% ✗ -
Feb 23, 2026 Feb 25, 2026 GUNSTEN CHRISTOPHER SVP-Proj Svcs & Fleet Engineer Neutral 90.0 +13,988 16.27% ✗ -
Feb 23, 2026 Feb 25, 2026 JOHANSON DAVID SVP-Project Acquisition & Ops Neutral 90.0 +13,988 15.21% ✗ -
Feb 23, 2026 Feb 25, 2026 HANSON WILLIAM H SVP, Market Development Neutral 47.5 +8 0.01% ✗ -
Feb 23, 2026 Feb 25, 2026 BEYKO ELENI SVP - Offshore Energy Neutral 90.0 +16,320 15.47% ✗ -
Feb 23, 2026 Feb 25, 2026 BAYER RYAN VP & CAO Neutral 90.0 +7,165 29.16% ✗ -
Jan 15, 2026 Jan 20, 2026 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2025 Jan 5, 2026 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2025 Jan 5, 2026 Steger Ronald Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2025 Jan 5, 2026 DICKERSON LAWRENCE R Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2025 Jan 5, 2026 Shipp Earl L Director Neutral 82.5 +1,829 4.48% ✗ -
Dec 31, 2025 Jan 5, 2026 Armstrong Dana A Director Neutral 90.0 +1,829 27.68% ✗ -
Dec 10, 2025 Dec 12, 2025 JOHANSON DAVID SVP-Project Acquisition & Ops Sell 45.0 -2,100 -2.23% ✓ $29.3K
Dec 3, 2025 Dec 4, 2025 JOHANSON DAVID SVP-Project Acquisition & Ops Sell 28.8 -10,000 -9.61% ✓ $130.2K
Sep 30, 2025 Oct 1, 2025 Steger Ronald Director Neutral 52.5 - 0.00% ✗ -
Sep 30, 2025 Oct 1, 2025 Shipp Earl L Director Neutral 85.0 +2,002 5.16% ✗ -
Sep 30, 2025 Oct 1, 2025 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Sep 30, 2025 Oct 1, 2025 DICKERSON LAWRENCE R Director Neutral 52.5 - 0.00% ✗ -
Sep 30, 2025 Oct 1, 2025 Armstrong Dana A Director Neutral 90.0 +2,002 43.47% ✗ -
Aug 11, 2025 Aug 13, 2025 Kornblau Scott Lee CFO Sell 7.5 -59,805 -34.78% ✓ $686.3K
Jun 30, 2025 Jul 1, 2025 Steger Ronald Director Neutral 52.5 - 0.00% ✗ -
Jun 30, 2025 Jul 1, 2025 Shipp Earl L Director Neutral 85.0 +1,969 5.35% ✗ -
Jun 30, 2025 Jul 1, 2025 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Jun 30, 2025 Jul 1, 2025 DICKERSON LAWRENCE R Director Neutral 52.5 - 0.00% ✗ -
Jun 30, 2025 Jul 1, 2025 Armstrong Dana A Director Neutral 90.0 +1,969 74.70% ✗ -
Jun 3, 2025 Jun 4, 2025 Steger Ronald Director Sell 22.5 -5,000 -19.68% ✗ $57.9K
May 8, 2025 May 12, 2025 BEYKO ELENI SVP - Offshore Energy Neutral 90.0 +40,000 79.78% ✗ -
May 8, 2025 May 12, 2025 Petterson Lasse CEO Neutral 90.0 +125,145 12.10% ✗ -
May 8, 2025 May 12, 2025 Kornblau Scott Lee CFO Neutral 90.0 +25,058 17.06% ✗ -
May 8, 2025 May 12, 2025 Schiffer Vivienne SVP, CLO, CCO & Corp Secretary Neutral 90.0 +18,035 28.12% ✗ -
May 8, 2025 May 12, 2025 GUNSTEN CHRISTOPHER SVP-Proj Svcs & Fleet Engineer Neutral 90.0 +13,179 18.11% ✗ -
May 8, 2025 May 12, 2025 JOHANSON DAVID SVP-Project Acquisition & Ops Neutral 90.0 +13,179 14.50% ✗ -
May 8, 2025 May 12, 2025 HANSON WILLIAM H SVP, Market Development Neutral 90.0 +8,237 13.56% ✗ -
May 8, 2025 May 12, 2025 BEYKO ELENI SVP - Offshore Energy Neutral 90.0 +15,376 17.06% ✗ -
May 8, 2025 May 12, 2025 BAYER RYAN VP & CAO Neutral 90.0 +10,126 70.09% ✗ -
May 6, 2025 May 8, 2025 BEYKO ELENI SVP - Offshore Energy Sell 10.0 -22,579 -31.05% ✓ $231.6K
May 5, 2025 May 7, 2025 Schiffer Vivienne SVP, CLO, CCO & Corp Secretary Sell 26.3 -1,753 -2.66% ✗ $16.7K
May 5, 2025 May 7, 2025 Petterson Lasse CEO Sell 43.8 -4,541 -0.44% ✗ $43.3K
May 5, 2025 May 7, 2025 Kornblau Scott Lee CFO Sell 26.3 -2,746 -1.84% ✗ $26.2K
May 5, 2025 May 7, 2025 JOHANSON DAVID SVP-Project Acquisition & Ops Sell 37.5 -825 -0.90% ✗ $7.9K
May 5, 2025 May 7, 2025 HANSON WILLIAM H SVP, Market Development Sell 37.5 -600 -0.98% ✗ $5.7K
May 5, 2025 May 7, 2025 GUNSTEN CHRISTOPHER SVP-Proj Svcs & Fleet Engineer Sell 27.5 -922 -1.25% ✗ $8.8K
May 5, 2025 May 7, 2025 BEYKO ELENI SVP - Offshore Energy Sell 26.3 -1,458 -1.97% ✗ $13.9K
Apr 24, 2025 Apr 28, 2025 BEYKO ELENI SVP - Offshore Energy Sell 22.5 -8,088 -9.83% ✗ $73.3K
Mar 31, 2025 Apr 28, 2025 STEUERT D MICHAEL Director Neutral 82.5 +2,759 3.19% ✗ -
Mar 31, 2025 Apr 28, 2025 Steger Ronald Director Neutral 52.5 - 0.00% ✗ -
Mar 31, 2025 Apr 28, 2025 Shipp Earl L Director Neutral 85.0 +2,759 8.10% ✗ -
Mar 31, 2025 Apr 28, 2025 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Mar 31, 2025 Apr 28, 2025 Armstrong Dana A Director Neutral 90.0 +2,636 100.00% ✗ -
Mar 31, 2025 Apr 1, 2025 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Mar 31, 2025 Apr 1, 2025 Steger Ronald Director Neutral 52.5 - 0.00% ✗ -
Mar 31, 2025 Apr 1, 2025 DICKERSON LAWRENCE R Director Neutral 52.5 - 0.00% ✗ -
Mar 31, 2025 Apr 1, 2025 Armstrong Dana A Director Neutral 90.0 +4,833 100.00% ✗ -
Mar 31, 2025 Apr 1, 2025 Shipp Earl L Director Neutral 90.0 +5,057 14.85% ✗ -
Mar 31, 2025 Apr 1, 2025 STEUERT D MICHAEL Director Neutral 85.0 +5,057 5.85% ✗ -
Mar 17, 2025 Mar 18, 2025 Schiffer Vivienne SVP, CLO, CCO & Corp Secretary Sell 95.0 +15,354 30.38% ✗ $79.1K
Mar 17, 2025 Mar 18, 2025 Petterson Lasse CEO Sell 97.5 +136,381 15.11% ✗ $309.4K
Mar 17, 2025 Mar 18, 2025 Kornblau Scott Lee CFO Sell 90.0 +32,866 3.16% ✗ $295.2K
Mar 17, 2025 Mar 18, 2025 JOHANSON DAVID SVP-Project Acquisition & Ops Sell 87.5 +13,121 2.57% ✗ $67.7K
Mar 17, 2025 Mar 18, 2025 HANSON WILLIAM H SVP, Market Development Sell 91.3 +8,142 15.31% ✗ $42K
Mar 17, 2025 Mar 18, 2025 GUNSTEN CHRISTOPHER SVP-Proj Svcs & Fleet Engineer Sell 95.0 +12,163 19.77% ✗ $76K
Mar 17, 2025 Mar 18, 2025 BEYKO ELENI SVP - Offshore Energy Sell 95.0 +12,328 17.63% ✗ $104.9K
Mar 17, 2025 Mar 18, 2025 BAYER RYAN VP & CAO Sell 61.3 +221 0.37% ✗ $16.9K
Mar 4, 2025 Mar 5, 2025 GUNSTEN CHRISTOPHER SVP-Proj Svcs & Fleet Engineer Buy 86.3 +3,875 6.72% ✗ $30K
Jan 15, 2025 Jan 16, 2025 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Jan 8, 2025 Armstrong Dana A Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2024 Jan 3, 2025 STEUERT D MICHAEL Director Neutral 77.5 +1,772 2.09% ✗ -
Dec 31, 2024 Jan 3, 2025 Steger Ronald Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2024 Jan 3, 2025 Shipp Earl L Director Neutral 85.0 +1,771 5.48% ✗ -
Dec 31, 2024 Jan 3, 2025 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Dec 31, 2024 Jan 3, 2025 DICKERSON LAWRENCE R Director Neutral 82.5 +4,069 4.95% ✗ -
Nov 14, 2024 Nov 15, 2024 DICKERSON LAWRENCE R Director Sell 22.5 -15,936 -16.25% ✗ $191.8K
Nov 12, 2024 Nov 13, 2024 DICKERSON LAWRENCE R Director Sell 22.5 -5,323 -5.15% ✗ $67.1K
Nov 11, 2024 Nov 12, 2024 Shanahan Kathleen M Director Sell 20.0 -23,238 -25.56% ✗ $293.5K
Nov 11, 2024 Nov 12, 2024 Steger Ronald Director Sell 22.5 -12,000 -32.08% ✗ $153.1K
Sep 30, 2024 Oct 2, 2024 STEUERT D MICHAEL Director Neutral 77.5 +1,899 2.29% ✗ -
Sep 30, 2024 Oct 2, 2024 Steger Ronald Director Neutral 52.5 - 0.00% ✗ -
Sep 30, 2024 Oct 2, 2024 Shipp Earl L Director Neutral 85.0 +1,899 6.25% ✗ -
Sep 30, 2024 Oct 2, 2024 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Sep 30, 2024 Oct 2, 2024 DICKERSON LAWRENCE R Director Neutral 82.5 +4,363 4.41% ✗ -
Aug 23, 2024 Aug 26, 2024 Petterson Lasse CEO Sell 26.3 -75,219 -7.69% ✓ $687.7K
Aug 19, 2024 Aug 21, 2024 Petterson Lasse CEO Sell 30.0 -63,918 -6.14% ✓ $579.5K
Aug 15, 2024 Aug 19, 2024 Petterson Lasse CEO Sell 23.8 -110,863 -9.62% ✓ $1M
Jul 15, 2024 Jul 17, 2024 Petterson Lasse CEO Sell 20.0 -100,000 -7.98% ✗ $890K
Jun 28, 2024 Jul 1, 2024 Shanahan Kathleen M Director Neutral 52.5 - 0.00% ✗ -
Jun 28, 2024 Jul 1, 2024 Steger Ronald Director Neutral 52.5 - 0.00% ✗ -
Jun 28, 2024 Jul 1, 2024 STEUERT D MICHAEL Director Neutral 82.5 +2,337 2.91% ✗ -
Jun 28, 2024 Jul 1, 2024 Shipp Earl L Director Neutral 85.0 +2,278 8.10% ✗ -
Jun 28, 2024 Jul 1, 2024 DICKERSON LAWRENCE R Director Neutral 85.0 +5,232 5.58% ✗ -
May 6, 2024 May 7, 2024 Schiffer Vivienne SVP, CLO, CCO & Corp Secretary Sell 27.5 -1,070 -2.07% ✗ $7.5K
May 6, 2024 May 7, 2024 Petterson Lasse CEO Sell 32.5 -9,467 -0.75% ✗ $66.6K
May 6, 2024 May 7, 2024 Kornblau Scott Lee CFO Sell 26.3 -1,676 -1.42% ✗ $11.8K
May 6, 2024 May 7, 2024 JOHANSON DAVID SVP-Project Acquisition & Ops Sell 37.5 -645 -0.81% ✗ $4.5K
May 6, 2024 May 7, 2024 HANSON WILLIAM H SVP, Market Development Sell 37.5 -486 -0.91% ✗ $3.4K
May 6, 2024 May 7, 2024 GUNSTEN CHRISTOPHER SVP-Proj Svcs & Fleet Engineer Sell 27.5 -640 -1.10% ✗ $4.5K
May 6, 2024 May 7, 2024 BEYKO ELENI SVP - Offshore Wind Sell 27.5 -889 -1.26% ✗ $6.3K
Apr 25, 2024 Apr 29, 2024 Kornblau Scott Lee CFO Sell 95.0 +30,325 13.41% ✗ $141.5K
Apr 24, 2024 Apr 25, 2024 BEYKO ELENI SVP - Offshore Wind Sell 22.5 -8,088 -10.25% ✗ $60.2K