Figures computed from official regulatory filings — .
Analysttarget 17 USD (+87%) · consensus 4.67/5 · 3 buy · 0 hold · 0 sell
Ownershipinsiders 3.11% · institutions 86.72% · short 5.1% of float
In USD · as of Oct 5, 2026
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Great Lakes Dredge & Dock Corporation provides dredging services in the United States. The company offers 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 comprising 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; and lake and river dredging, inland levee and construction dredging, environmental restoration and habitat improvement, and other marine construction projects. In addition, the company operates hydraulic dredges, hopper dredges, mechanical dredges, scows, and multi cats equipment. It serves federal, state, and local governments; foreign governments; and domestic and foreign private concerns comprising utilities, oil and gas, and other energy companies. 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. As of April 1, 2026, Great Lakes Dredge & Dock Corporation operates as a subsidiary of Saltchuk Resources, Inc. As of April 1, 2026, Great Lakes Dredge & Dock Corporation operates as a subsidiary of Saltchuk Resources, Inc.
Market information source · Oct 5, 2026
Periods recorded in the consulted sources. These do not certify the legal dates of name changes.
SEC company identity · Oct 5, 2026
Open-market timeline · full history
149 buys231 sells— close pricebar = usd volume, √ scaleclick a period to filter the table
| Insider | Type | Value · USD | Signals | Details |
|---|---|---|---|---|
| Shanahan Kathleen Mtrack record | Other | n/a (No price was disclosed in the filing) | SEC |
| Kornblau Scott Lee | Award | n/a (No price was disclosed in the filing) | SEC |
| Steger Ronaldtrack record | OtherD (derivative) | n/a (No price was disclosed in the filing) | SEC |
| BEYKO ELENI | Award | n/a (No price was disclosed in the filing) | SEC |
| Petterson Lassetrack record | Other | n/a (No price was disclosed in the filing) | SEC |
| DICKERSON LAWRENCE R | OtherD (derivative) | n/a (No price was disclosed in the filing) | SEC |
| BAYER RYAN | Award | n/a (No price was disclosed in the filing) | SEC |
| DICKERSON LAWRENCE R | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| HANSON WILLIAM H | Award | n/a (No price was disclosed in the filing) | SEC |
| GUNSTEN CHRISTOPHER | Other | n/a (No price was disclosed in the filing) | SEC |
| Kornblau Scott Lee | Other | n/a (No price was disclosed in the filing) | SEC |
| Schiffer Vivienne | Other | n/a (No price was disclosed in the filing) | SEC |
| BAYER RYAN | Other | n/a (No price was disclosed in the filing) | SEC |
| Shipp Earl Ltrack record | Other | n/a (No price was disclosed in the filing) | SEC |
| JOHANSON DAVID | Other | n/a (No price was disclosed in the filing) | SEC |
| BEYKO ELENI | Other | n/a (No price was disclosed in the filing) | SEC |
| GUNSTEN CHRISTOPHER | Award | n/a (No price was disclosed in the filing) | SEC |
| JOHANSON DAVID | Award | n/a (No price was disclosed in the filing) | SEC |
| Armstrong Dana A | Other | n/a (No price was disclosed in the filing) | SEC |
| JOHANSON DAVID | Award | $5.6K | SEC |
| DICKERSON LAWRENCE R | Other | n/a (No price was disclosed in the filing) | SEC |
| Shanahan Kathleen Mtrack record | AwardD (derivative) | n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise)) | SEC |
| HANSON WILLIAM H | Other | n/a (No price was disclosed in the filing) | SEC |
| Schiffer Vivienne | Award | n/a (No price was disclosed in the filing) | SEC |
| Shanahan Kathleen Mtrack record | OtherD (derivative) | n/a (No price was disclosed in the filing) | SEC |