Great Lakes Dredge & Dock
Ownership
Ownership Structure
Who owns Great Lakes Dredge & Dock (GLDD)? This page shows the largest institutions and funds, the ownership structure and the latest insider transactions. 92.1% of the shares are freely tradable; institutional investors hold 86.7%.
Largest Shareholders
Institutions
| Name | Stake (%) | Shares | Change (%) | Date |
|---|---|---|---|---|
| BlackRock Inc | 8.86 | 5,917,589 | -14.2 | 03/31/2026 |
| Vanguard Capital Management, LLC | 4.28 | 2,856,158 | +0.0 | 03/31/2026 |
| Fidelity International Ltd | 4.00 | 2,671,231 | +0.0 | 03/31/2026 |
| Geode Capital Management, LLC | 2.51 | 1,678,166 | +2.9 | 03/31/2026 |
| Balyasny Asset Management LLC | 2.44 | 1,626,990 | +0.0 | 03/31/2026 |
| State Street Corp | 2.36 | 1,577,722 | -0.7 | 03/31/2026 |
| Qube Research & Technologies | 2.07 | 1,383,585 | +119.6 | 03/31/2026 |
| Water Island Capital LLC | 1.89 | 1,263,580 | +0.0 | 03/31/2026 |
| ODDO BHF Asset Management SAS | 1.75 | 1,166,388 | +0.0 | 03/31/2026 |
| Arrowstreet Capital Limited Partnership | 1.58 | 1,054,360 | +32.4 | 03/31/2026 |
Largest reported positions according to regulatory filings; stake as a percentage of shares outstanding, change versus the previous filing. Source: fundamentals data.
Data as of: August 13, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.