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Great Lakes Dredge & Dock (GLDD) Institutional Ownership

Great Lakes Dredge & Dock logo
$17.00 0.00 (0.00%)
As of 09/30/2026
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Institutional Ownership Changes (13F Filings) for Great Lakes Dredge & Dock (NASDAQ:GLDD)

Current
Institutional Ownership
Percentage
89.11%
Number of
Institutional Buyers
(last 12 months)
111
Total
Institutional Inflows
(last 12 months)
$149.99M
Number of
Institutional Sellers
(last 12 months)
77
Total
Institutional Outflows
(last 12 months)
$113.51M
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GLDD Institutional Buying and Selling by Quarter

Great Lakes Dredge & Dock Major Shareholders & Ownership History

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Reporting DateMajor Shareholder NameShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
6/3/2026Parallel Advisors LLC2,304$39K0.0%+39.0%0.003%
5/21/2026Groupe la Francaise128,598$2.19M0.0%N/A0.193%
5/19/2026Bank of America Corp DE173,986$2.96M0.0%-47.6%0.261%
5/19/2026Oddo BHF Asset Management Sas1,166,388$19.83M0.8%N/A1.747%
5/18/2026California State Teachers Retirement System91,090$1.55M0.0%+47.0%0.136%
5/16/2026The Manufacturers Life Insurance Company18,124$308K0.0%-11.1%0.027%
5/16/2026Quantinno Capital Management LP24,659$419K0.0%+12.4%0.037%
5/16/2026Polar Asset Management Partners Inc.200,000$3.40M0.1%N/A0.299%
5/16/2026Lazard Asset Management LLC269,389$4.58M0.0%+19.1%0.403%
5/15/2026OMERS ADMINISTRATION Corp864,000$14.69M0.1%N/A1.294%
5/14/2026Renaissance Technologies LLC381,700$6.49M0.0%+47.5%0.572%
5/14/2026Gabelli Funds LLC505,543$8.59M0.1%N/A0.757%
5/14/2026GABELLI & Co INVESTMENT ADVISERS INC.253,695$4.31M0.6%N/A0.380%
5/14/2026Gamco Investors INC. ET AL20,000$340K0.0%N/A0.030%
5/14/2026Arrowstreet Capital Limited Partnership1,054,360$17.92M0.0%+32.4%1.579%
5/14/2026State of Wyoming34,385$585K0.1%-21.7%0.051%
5/7/2026Dimensional Fund Advisors LP3,386,372$57.57M0.0%-21.2%5.071%
5/7/2026Parallel Advisors LLC2,304$39K0.0%+39.0%0.003%
5/6/2026Jennison Associates LLC1,029,264$17.50M0.0%-73.0%1.541%
5/5/2026Bank of New York Mellon Corp253,954$4.32M0.0%-2.4%0.380%
5/5/2026Sanctuary Advisors LLC305,240$5.19M0.0%-7.1%0.457%
5/4/2026Principal Financial Group Inc.84,439$1.44M0.0%+6.7%0.126%
4/30/2026Hsbc Holdings PLC20,480$348K0.0%-61.9%0.031%
4/29/2026Credit Industriel ET Commercial69,245$1.18M0.1%N/A0.104%
4/28/2026Bogart Wealth LLC3,000$51K0.0%N/A0.004%
4/27/2026HB Wealth Management LLC87,752$1.49M0.0%-1.0%0.131%
4/27/2026Y Intercept Hong Kong Ltd142,229$2.42M0.0%-33.4%0.213%
4/25/2026Keybank National Association OH12,437$211K0.0%-58.8%0.019%
4/24/2026Canton Hathaway LLC35,000$595K0.1%-25.1%0.052%
4/22/2026Sterling Capital Management LLC2,206$38K0.0%-93.2%0.003%
4/16/2026SG Americas Securities LLC27,615$469K0.0%-73.9%0.041%
3/20/2026Hsbc Holdings PLC53,694$705K0.0%-11.7%0.080%
2/19/2026Invesco Ltd.119,528$1.57M0.0%-12.9%0.176%
2/18/2026State of Tennessee Department of Treasury13,524$177K0.0%N/A0.020%
2/18/2026Mackenzie Financial Corp120,869$1.59M0.0%-13.3%0.178%
2/18/2026NewEdge Advisors LLC20,287$266K0.0%+4,730.2%0.030%
2/18/2026Empowered Funds LLC312,266$4.10M0.0%+26.9%0.459%
2/18/2026XTX Topco Ltd16,654$218K0.0%+51.0%0.024%
2/18/2026Zacks Investment Management152,586$2.00M0.0%+30.0%0.224%
2/18/2026VARCOV Co.15,744$207K0.1%N/A0.023%
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2/18/2026Susquehanna Portfolio Strategies LLC70,586$926K0.0%-4.0%0.104%
2/18/2026Tudor Investment Corp ET AL132,476$1.74M0.0%-53.7%0.195%
2/18/2026Numerai GP LLC60,925$799K0.1%N/A0.090%
2/18/2026Millennium Management LLC1,597,481$20.96M0.0%+39.4%2.349%
2/18/2026Engineers Gate Manager LP21,318$280K0.0%N/A0.031%
2/18/2026Boothbay Fund Management LLC14,034$184K0.0%-74.2%0.021%
2/18/2026Bridgeway Capital Management LLC508,266$6.67M0.1%+15.0%0.747%
2/18/2026Aristeia Capital L.L.C.37,760$495K0.0%+26.6%0.056%
2/17/2026Schonfeld Strategic Advisors LLC37,055$486K0.0%-25.3%0.054%
2/17/2026AQR Capital Management LLC261,071$3.43M0.0%+32.8%0.384%
2/17/2026Lazard Asset Management LLC226,275$2.97M0.0%+22.4%0.333%
2/17/2026Jain Global LLC16,683$219K0.0%N/A0.025%
2/17/2026Trexquant Investment LP171,645$2.25M0.0%+74.0%0.252%
2/17/2026Jump Financial LLC154,915$2.03M0.0%+8.4%0.228%
2/17/2026Price T Rowe Associates Inc. MD40,082$526K0.0%+14.3%0.059%
2/17/2026Osaic Holdings Inc.21,643$284K0.0%+1,538.4%0.032%
2/17/2026Russell Investments Group Ltd.138,756$1.82M0.0%-1.7%0.204%
2/17/2026State of Wisconsin Investment Board71,469$938K0.0%-12.7%0.105%
2/17/2026ExodusPoint Capital Management LP165,931$2.18M0.0%+64.8%0.244%
2/17/2026Royal Bank of Canada10,508$138K0.0%+19.4%0.015%
2/17/2026Seven Six Capital Management LLC111,113$1.46M1.5%-37.8%0.163%
2/17/2026Graham Capital Management L.P.29,054$381K0.0%-12.2%0.043%
2/17/2026Magnetar Financial LLC50,021$656K0.0%+64.4%0.074%
2/16/2026Squarepoint Ops LLC382,573$5.02M0.0%+1.5%0.563%
2/16/2026Verition Fund Management LLC86,525$1.14M0.0%+196.9%0.127%
2/16/2026Wittenberg Investment Management Inc.183,100$2.40M0.9%-4.5%0.269%
2/16/2026Panagora Asset Management Inc.110,705$1.45M0.0%+2.3%0.163%
2/16/2026Next Century Growth Investors LLC30,520$400K0.0%-93.2%0.045%
2/16/2026Barclays PLC139,300$1.83M0.0%+10.6%0.205%
2/13/2026The Manufacturers Life Insurance Company 20,379$267K0.0%-9.3%0.030%
2/13/2026Walleye Capital LLC206,215$2.71M0.0%+198.9%0.303%
2/13/2026Fayez Sarofim & Co12,966$170K0.0%-26.0%0.019%
2/13/2026PCM Encore LLC24,529$322K0.1%N/A0.036%
2/13/2026Jacobs Levy Equity Management Inc.205,321$2.69M0.0%-7.4%0.302%
2/13/2026Essex Investment Management Co. LLC301,986$3.96M0.6%-2.2%0.444%
2/13/2026Charles Schwab Investment Management Inc.554,348$7.27M0.0%-1.3%0.815%
2/13/2026State Street Corp1,589,380$20.85M0.0%-1.7%2.337%
2/13/2026Ieq Capital LLC15,511$204K0.0%N/A0.023%
2/13/2026Martingale Asset Management L P72,802$955K0.0%N/A0.107%
2/13/2026Dynamic Technology Lab Private Ltd23,769$312K0.1%-62.0%0.035%
2/13/2026UBS AM a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC122,030$1.60M0.0%-4.9%0.179%
2/13/2026Wells Fargo & Company MN84,767$1.11M0.0%+37.3%0.125%
2/12/2026HRT Financial LP132,582$1.74M0.0%-14.7%0.195%
2/12/2026Renaissance Technologies LLC258,791$3.40M0.0%+1.5%0.381%
2/12/2026Dimensional Fund Advisors LP4,300,112$56.42M0.0%-0.5%6.324%
2/12/2026Integrated Quantitative Investments LLC20,523$269K0.1%N/A0.030%
2/12/2026Campbell & CO Investment Adviser LLC76,705$1.01M0.0%+292.9%0.113%
2/12/2026Swiss National Bank134,200$1.76M0.0%+2.0%0.197%
2/12/2026Nuveen LLC151,568$1.99M0.0%-28.6%0.223%
2/12/2026Private Management Group Inc.282,493$3.71M0.1%-44.0%0.415%
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2/11/2026Empowered Funds LLC312,266$4.10M0.0%+26.9%0.459%
2/11/2026Inceptionr LLC24,116$316K0.1%N/A0.035%
2/11/2026Deutsche Bank AG126,848$1.66M0.0%+127.9%0.187%
2/11/2026Fox Run Management L.L.C.31,750$417K0.1%-17.2%0.047%
2/11/2026LPL Financial LLC134,022$1.76M0.0%+18.8%0.197%
2/11/2026Brandywine Global Investment Management LLC271,720$3.57M0.0%-3.5%0.400%
2/11/2026CenterBook Partners LP410,971$5.39M0.3%-20.7%0.604%
2/11/2026JPMorgan Chase & Co.668,280$8.77M0.0%-24.8%0.983%
2/11/2026WINTON GROUP Ltd37,834$496K0.0%-16.8%0.056%
2/11/2026State of Wyoming43,915$576K0.1%+21.5%0.065%


GLDD Institutional Ownership - Frequently Asked Questions

During the previous two years, 220 institutional investors and hedge funds held shares of Great Lakes Dredge & Dock. The most heavily invested institutionals were Dimensional Fund Advisors LP ($57.57M), Vanguard Group Inc. ($52.31M), Harvey Partners LLC ($44.37M), American Century Companies Inc. ($28.93M), Alliancebernstein L.P. ($23.36M), Geode Capital Management LLC ($21.40M), and Millennium Management LLC ($20.96M).Learn more on Great Lakes Dredge & Dock's institutional investors.

89.11% of Great Lakes Dredge & Dock's stock is owned by institutional investors. Learn more on GLDD's institutional investor holdings.

Of the 187 institutional investors that purchased Great Lakes Dredge & Dock's stock in the last 24 months, the following investors and hedge funds have bought the highest volume of shares: Castlekeep Investment Advisors LLC ($6.07M), Millennium Management LLC ($1.75M), Arrowstreet Capital Limited Partnership ($1.27M), American Century Companies Inc. ($1.26M), Oddo BHF Asset Management Sas ($1.17M), JPMorgan Chase & Co. ($1.11M), and Jennison Associates LLC ($1.06M).

Institutional investors have bought a total of 10,681,105 shares in the last 24 months. This purchase volume represents approximately $149.99M in transactions.

Of the 77 institutional investors that sold Great Lakes Dredge & Dock's stock in the last 24 months, the following investors and hedge funds have sold the highest volume of shares: Jennison Associates LLC ($3.25M), Dimensional Fund Advisors LP ($936.88K), Next Century Growth Investors LLC ($416.30K), Private Management Group Inc. ($371.06K), Tudor Investment Corp ET AL ($357.28K), JPMorgan Chase & Co. ($220.46K), and Seven Six Capital Management LLC ($164.30K).

Institutional investors have sold a total of 7,536,670 shares in the last 24 months. This volume of shares sold represents approximately $113.51M in transactions.


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Institutional ownership data for NASDAQ:GLDD is compiled from quarterly 13F filings submitted to the U.S. Securities and Exchange Commission (SEC), with the most recent received on 6/3/2026. New 13F filings are added each quarter as they're published.
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