| $348M | ||
| $250M | ||
| $109M | ||
| $56M | ||
| $40M | ||
| $29M |
Buys | $0 | 0 | 0 |
Sells | $1,135,310 | 5 | 100 |
| Steger Ronald | director | 0 | $0 | 1 | $57,925 | $-57,925 |
| JOHANSON DAVID | SVP-Project Acquisition & Ops | 0 | $0 | 2 | $159,463 | $-159,463 |
| BEYKO ELENI | SVP - Offshore Energy | 0 | $0 | 1 | $231,600 | $-231,600 |
| Kornblau Scott Lee | SVP & CFO | 0 | $0 | 1 | $686,322 | $-686,322 |
Great Lakes Dredge & Dock Corporation provides dredging services in the United States. The company engages in capital dredging that consists of port expansion projects; coastal restoration and land reclamations; trench digging for pipelines, tunnels, and cables; and other dredging related to the construction of breakwaters, jetties, canals, and other marine structures. It is also involved in coastal protection projects that comprises of moving sand from the ocean floor to shoreline locations where erosion threatens shoreline assets; maintenance dredging, which consists of the re-dredging of previously deepened waterways and harbors to remove silt, sand, and other accumulated sediments; land reclamations, channel deepening, and port infrastructure development; and lake and river dredging, inland levee and construction dredging, environmental restoration and habitat improvement, and other marine construction projects. The company serves federal, state, and local governments; foreign governments; and domestic and foreign private concerns, such as utilities, oil, and other energy companies. It operates a fleet of 18 dredges, 17 material transportation barges, 1 drillboat, and various other support vessels. The company was formerly known as Lydon & Drews Partnership and changed its name to Great Lakes Dredge & Dock Corporation in 1905. Great Lakes Dredge & Dock Corporation was founded in 1890 and is headquartered in Houston, Texas.
Over the last 12 months, insiders at Great Lakes Dredge & Dock Corporation have bought $0 and sold $1.14M worth of Great Lakes Dredge & Dock Corporation stock.
On average, over the past 5 years, insiders at Great Lakes Dredge & Dock Corporation have bought $572,331 and sold $1.67M worth of stock each year.
There was no buying activity among insiders over the last 12 months.
The last purchase of 3,875 shares for transaction amount of $30,031 was made by GUNSTEN CHRISTOPHER (SVP‑Proj Svcs & Fleet Engineer) on 2025‑03‑04.
| 2025-12-10 | Sale | JOHANSON DAVID | SVP-Project Acquisition & Ops | 2,100 0.0032% | $13.96 | $29,308 | +9.30% | |
| 2025-12-03 | Sale | JOHANSON DAVID | SVP-Project Acquisition & Ops | 10,000 0.0147% | $13.02 | $130,155 | +13.14% | |
| 2025-08-11 | Sale | Kornblau Scott Lee | SVP & CFO | 59,805 0.088% | $11.48 | $686,322 | +9.33% | |
| 2025-06-03 | Sale | Steger Ronald | director | 5,000 0.0073% | $11.59 | $57,925 | +3.31% | |
| 2025-05-06 | Sale | BEYKO ELENI | SVP - Offshore Energy | 22,579 0.0344% | $10.26 | $231,600 | +19.20% | |
| 2025-03-04 | GUNSTEN CHRISTOPHER | SVP-Proj Svcs & Fleet Engineer | 3,875 0.0056% | $7.75 | $30,031 | +48.53% | ||
| 2024-11-14 | Sale | DICKERSON LAWRENCE R | director | 15,936 0.0238% | $12.04 | $191,799 | -6.18% | |
| 2024-11-12 | Sale | DICKERSON LAWRENCE R | director | 5,323 0.008% | $12.61 | $67,118 | -9.18% | |
| 2024-11-11 | Sale | Shanahan Kathleen M | director | 23,238 0.0345% | $12.63 | $293,542 | -9.75% | |
| 2024-11-11 | Sale | Steger Ronald | director | 12,000 0.018% | $12.76 | $153,120 | -9.75% | |
| 2024-08-26 | Sale | Petterson Lasse | CEO & President | 28,709 0.0401% | $9.24 | $265,363 | +14.74% | |
| 2024-08-23 | Sale | Petterson Lasse | CEO & President | 46,510 0.0693% | $9.08 | $422,306 | +24.37% | |
| 2024-08-20 | Sale | Petterson Lasse | CEO & President | 10,147 0.0157% | $9.10 | $92,338 | +28.36% | |
| 2024-08-19 | Sale | Petterson Lasse | CEO & President | 53,771 0.0796% | $9.06 | $487,165 | +23.71% | |
| 2024-08-16 | Sale | Petterson Lasse | CEO & President | 51,640 0.0796% | $9.11 | $470,440 | +23.36% | |
| 2024-08-15 | Sale | Petterson Lasse | CEO & President | 59,223 0.091% | $9.08 | $537,745 | +24.25% | |
| 2023-05-19 | Levenson Ryan | director | 121,721 0.183% | $6.82 | $830,490 | +14.89% | ||
| 2023-05-18 | Levenson Ryan | director | 6,860 0.0102% | $6.75 | $46,286 | +14.89% | ||
| 2023-05-17 | Levenson Ryan | director | 5,207 0.0077% | $6.64 | $34,552 | +16.69% | ||
| 2023-05-12 | Levenson Ryan | director | 68,000 0.1039% | $6.10 | $414,528 | +29.90% |
| Kornblau Scott Lee | SVP & CFO | 112130 0.1647% | $1.9M | 0 | 1 | |
| JOHANSON DAVID | SVP-Project Acquisition & Ops | 91963 0.1351% | $1.56M | 0 | 2 | |
| BEYKO ELENI | SVP - Offshore Energy | 50138 0.0736% | $849,839.10 | 0 | 1 | |
| Steger Ronald | director | 20404 0.03% | $345,847.80 | 1 | 2 | +38.79% |
| Hound Partners, LLC | 10 percent owner | 2637965 3.874% | $44.71M | 1 | 0 | <0.0001% |
| Petterson Lasse | CEO & President | 902392 1.3252% | $15.3M | 8 | 7 | +17.9% |
| Lowry Richard M | Executive VP and COO | 418215 0.6142% | $7.09M | 0 | 1 | |
| Berger Jonathan W | CEO | 412874 0.6063% | $7M | 1 | 1 | <0.0001% |
| Levenson Ryan | director | 333888 0.4903% | $5.66M | 11 | 22 | +9.75% |
| Leight Nathan | director | 264213 0.388% | $4.48M | 35 | 0 | <0.0001% |
| Simonelli David E | Chief Operating Officer | 245866 0.3611% | $4.17M | 0 | 51 | |
| Deutsch Peter | director | 132734 0.1949% | $2.25M | 10 | 7 | +2.57% |
| Uhler Robert B | director | 128161 0.1882% | $2.17M | 6 | 0 | +15.62% |
| LaVoy Kathleen Mackie | SVP & Chief Legal Officer | 119687 0.1758% | $2.03M | 0 | 4 | |
| Wensel Deborah A | Senior VP & CFO | 108198 0.1589% | $1.83M | 0 | 8 | |
| Bittel Stephen | director | 90726 0.1332% | $1.54M | 10 | 0 | +51.04% |
| ALBERT CARL A | director | 85863 0.1261% | $1.46M | 5 | 0 | +17% |
| DICKERSON LAWRENCE R | director | 82148 0.1206% | $1.39M | 0 | 6 | |
| Waryjas Maryann | SVP & Chief Legal Officer | 72624 0.1067% | $1.23M | 1 | 0 | <0.0001% |
| Johnson Kyle D | Senior Vice President | 68353 0.1004% | $1.16M | 0 | 3 | |
| Shanahan Kathleen M | director | 67675 0.0994% | $1.15M | 1 | 1 | +26.2% |
| Walsh Michael Joseph | director | 63985 0.094% | $1.08M | 1 | 0 | +9.47% |
| GUNSTEN CHRISTOPHER | SVP-Proj Svcs & Fleet Engineer | 61532 0.0904% | $1.04M | 1 | 0 | |
| Hansen Bradley T.J. | VP - Division Manager | 47763 0.0701% | $809,582.85 | 0 | 6 | |
| Pagendarm William F | VP - Division Manager | 44848 0.0659% | $760,173.60 | 0 | 2 | |
| Gillespie Christopher J | V.P. International Operation | 44434 0.0653% | $753,156.30 | 1 | 2 | <0.0001% |
| Karas John F | V.P & Chief Estimator | 30803 0.0452% | $522,110.85 | 0 | 3 | |
| Becker Steven W | Plant Equip Mgr and CME | 29803 0.0438% | $505,160.85 | 0 | 1 | |
| Mackie Douglas B | director | 28713 0.0422% | $486,685.35 | 0 | 35 | |
| HANSON WILLIAM H | SVP, Gov't Relations & Bus Dev | 28685 0.0421% | $486,210.75 | 0 | 4 | |
| William Hanson H. | VP - US Business Development | 26271 0.0386% | $445,293.45 | 0 | 1 | |
| O'Hara Steven F. | VP - Division Manager | 16730 0.0246% | $283,573.50 | 0 | 1 | |
| Shipp Earl L | director | 14578 0.0214% | $247,097.10 | 2 | 0 | +18.47% |
| MADISON DEARBORN CAPITAL PARTNERS IV LP | 10 percent owner | 0 0% | $0 | 0 | 2 | |
| SOULELES THOMAS S | director | 0 0% | $0 | 0 | 2 | |
| GRISSOM DOUGLAS C | director | 0 0% | $0 | 0 | 2 | |
| Weiss Jason | director | 0 0% | $0 | 1 | 14 | <0.0001% |
$23,571,619 | 158 | -3.62% | $1.48B | |
Great Lakes Dredge & Dock Corporation (GLDD) | $54,584,357 | 95 | 9.54% | $1.15B |
$44,603,696 | 84 | 4.82% | $67.18M | |
$68,553,210 | 71 | 40.45% | $1.01B | |
$696,667 | 55 | -19.37% | $60.61M | |
$11,389,125 | 53 | 29.05% | $1.24B | |
$5,568,930 | 52 | 20.81% | $7.82B | |
$19,979,299 | 49 | -1.76% | $3.89B | |
$5,380,723 | 42 | 11.83% | $7.06B | |
$1,509,485 | 41 | 53.89% | $535.07M | |
$6,189,813 | 34 | 7.83% | $5.78B | |
$582,660 | 33 | 26.78% | $249.05M | |
$5,768,238 | 28 | 9.67% | $6.44B | |
$11,573,028 | 23 | 17.43% | $317.85M | |
$50,423,393 | 18 | 16.07% | $5.15B | |
$1,188,679 | 15 | 244.42% | $70.95M | |
$13,174,893 | 12 | 0.85% | $361.35M | |
$3,993,326 | 11 | 41.16% | $7.69B | |
$662,257 | 10 | 24.36% | $4.26B |
| Increased Positions | 107 | +43.15% | 5M | +9% |
| Decreased Positions | 108 | -43.55% | 4M | -7.05% |
| New Positions | 30 | New | 1M | New |
| Sold Out Positions | 25 | Sold Out | 1M | Sold Out |
| Total Postitions | 247 | -0.4% | 56M | +1.95% |
| Blackrock, Inc. | $91,994.00 | 10.2% | 6.94M | +152,598 | +2.25% | 2025-09-30 |
| Dimensional Fund Advisors Lp | $57,326.00 | 6.36% | 4.32M | +35,044 | +0.82% | 2025-09-30 |
| Jennison Associates Llc | $56,677.00 | 6.29% | 4.27M | -519,570 | -10.84% | 2025-09-30 |
| Vanguard Group Inc | $51,440.00 | 5.71% | 3.88M | -5,789 | -0.15% | 2025-09-30 |
| Harvey Partners, Llc | $49,069.00 | 5.44% | 3.7M | -32,449 | -0.87% | 2025-09-30 |
| American Century Companies Inc | $31,989.00 | 3.55% | 2.41M | +231,558 | +10.62% | 2025-09-30 |
| Tcw Group Inc | $24,852.00 | 2.76% | 1.87M | -211,500 | -10.14% | 2025-09-30 |
| Geode Capital Management, Llc | $21,673.00 | 2.4% | 1.63M | -22,056 | -1.33% | 2025-09-30 |
| State Street Corp | $21,446.00 | 2.38% | 1.62M | -9,385 | -0.58% | 2025-09-30 |
| Minerva Advisors Llc | $18,429.00 | 2.04% | 1.39M | 0 | 0% | 2025-09-30 |