Institutional shares held 56.9 Million
224K calls
23.3K puts
Total value of holdings $702M
$2.77M calls
$287K puts
Market Cap $816M
66,083,300 Shares Out.
Institutional ownership 86.05%
# of Institutions 227


Latest Institutional Activity in GLDD

Top Purchases

Q3 2025
Millennium Management LLC Shares Held: 1.15M ($14.2M)
Q3 2025
Private Management Group Inc Shares Held: 505K ($6.23M)
Q3 2025
Qube Research & Technologies LTD Shares Held: 381K ($4.71M)
Q3 2025
Jpmorgan Chase & CO Shares Held: 889K ($11M)
Q3 2025
Allspring Global Investments Holdings, LLC Shares Held: 494K ($6.1M)

Top Sells

Q3 2025
Jennison Associates LLC Shares Held: 4.27M ($52.8M)
Q3 2025
Nuveen, LLC Shares Held: 212K ($2.62M)
Q3 2025
Citadel Advisors LLC Shares Held: 164K ($2.03M)
Q3 2025
Tcw Group Inc Shares Held: 1.87M ($23.1M)
Q3 2025
Next Century Growth Investors LLC Shares Held: 447K ($5.52M)

About GLDD

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.


Insider Transactions at GLDD

Insider Transaction List

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Date Insider Transaction Ownership Type Shares Traded Value / Price
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Last 12 Months Summary

Buy / Acquisition
650K Shares
From 14 Insiders
Grant, award, or other acquisition 643K shares
Exercise of conversion of derivative security 2.85K shares
Open market or private purchase 3.88K shares
Sell / Disposition
232K Shares
From 12 Insiders
Open market or private sale 97.4K shares
Payment of exercise price or tax liability 135K shares

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