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GLDD Insider Trading

Insider Ownership Percentage: 2.20%
Insider Buying (Last 12 Months): $30,031.25
Insider Selling (Last 12 Months): $419,810.54

Great Lakes Dredge & Dock Insider Trading History Chart

This chart shows the insider buying and selling history at Great Lakes Dredge & Dock by year and by quarter.

Skip ChartChart Data in Insider Trading History Table

Great Lakes Dredge & Dock Share Price & Price History

Current Price: $12.89
Price Change: ▼ Price Decrease of -0.16 (-1.23%)
As of 12/4/2025 05:00 PM ET

This chart shows the closing price history over time for GLDD up to the past year.

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Days: 30 | 90 | 365

Great Lakes Dredge & Dock Insider Trading History

Transaction DateInsider NameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
12/3/2025David JohansonSVPSell10,000$13.02$130,200.0094,063View SEC Filing Icon  
6/3/2025Ronald StegerDirectorSell5,000$11.59$57,950.0020,404View SEC Filing Icon  
5/6/2025Eleni BeykoSVPSell22,579$10.26$231,660.5450,138View SEC Filing Icon  
3/4/2025Christopher GunstenSVPBuy3,875$7.75$30,031.2561,532View SEC Filing Icon  
11/11/2024Kathleen M. ShanahanDirectorSell23,238$12.63$293,495.9467,675View SEC Filing Icon  
8/26/2024Lasse PettersonCEOSell28,709$9.24$265,271.16902,392View SEC Filing Icon  
8/23/2024Lasse PettersonCEOSell46,510$9.08$422,310.80931,101View SEC Filing Icon  
8/19/2024Lasse PettersonCEOSell53,771$9.06$487,165.26987,758View SEC Filing Icon  
5/19/2023Ryan LevensonDirectorBuy121,721$6.82$830,137.22333,888View SEC Filing Icon  
5/17/2023Ryan LevensonDirectorBuy5,207$6.64$34,574.48205,307View SEC Filing Icon  
5/12/2023Ryan LevensonDirectorBuy68,000$6.10$414,800.00200,100View SEC Filing Icon  
5/10/2023Ryan LevensonDirectorBuy66,000$6.05$399,300.0066,100View SEC Filing Icon  
3/2/2023Earl L ShippDirectorBuy2,000$5.51$11,020.0014,578View SEC Filing Icon  
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SEC Filings (Institutional Ownership Changes) for Great Lakes Dredge & Dock (NASDAQ:GLDD)

89.11% of Great Lakes Dredge & Dock stock is owned by institutions. Institutional ownership can be a sign of analyst confidence in the fundamentals of the stock.

Institutional Buying and Selling by Quarter

This chart shows the instiutional buying and selling at GLDD by year and by quarter.

Skip Institutional Buying and Selling Chart and Table DataRead Chart Data in Institutional Trading History Table

Great Lakes Dredge & Dock Institutional Trading History

Reporting DateHedge FundShares HeldMarket Value% of PortfolioQuarterly Change in SharesOwnership in CompanyDetails
11/17/2025Jacobs Levy Equity Management Inc.221,743$2.66M0.0%+34.1%0.326%Search for SEC Filing on Google Icon
11/17/2025CANADA LIFE ASSURANCE Co6,556$78K0.0%-38.8%0.010%Search for SEC Filing on Google Icon
11/17/2025PharVision Advisers LLC11,525$0.14M0.1%-42.5%0.017%Search for SEC Filing on Google Icon
11/17/2025Virtus Advisers LLC11,737$0.14M0.1%N/A0.017%Search for SEC Filing on Google Icon
11/17/2025Verition Fund Management LLC29,142$0.35M0.0%-54.5%0.043%Search for SEC Filing on Google Icon
11/17/2025Sherbrooke Park Advisers LLC15,923$0.19M0.1%N/A0.023%Search for SEC Filing on Google Icon
11/17/2025Qube Research & Technologies Ltd381,365$4.57M0.0%+641.3%0.561%Search for SEC Filing on Google Icon
11/17/2025Millennium Management LLC1,146,135$13.74M0.0%+228.7%1.686%Search for SEC Filing on Google Icon
11/17/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.31,289$0.38M0.0%-14.2%0.046%Search for SEC Filing on Google Icon
11/17/2025London Co. of Virginia584,424$7.01M0.0%-9.1%0.859%Search for SEC Filing on Google Icon
11/17/2025Harvey Partners LLC3,700,551$44.37M3.9%-0.9%5.442%Search for SEC Filing on Google Icon
11/17/2025Brevan Howard Capital Management LP10,441$0.13M0.0%N/A0.015%Search for SEC Filing on Google Icon
11/17/2025Bank of America Corp DE250,108$3M0.0%+2.0%0.368%Search for SEC Filing on Google Icon
11/17/2025Boothbay Fund Management LLC54,313$0.65M0.0%N/A0.080%Search for SEC Filing on Google Icon
11/17/2025Aquatic Capital Management LLC8,576$0.10M0.0%-63.9%0.013%Search for SEC Filing on Google Icon
11/17/2025Algert Global LLC285,619$3.43M0.1%+30.5%0.420%Search for SEC Filing on Google Icon
11/17/2025Ameriprise Financial Inc.48,118$0.58M0.0%-31.5%0.071%Search for SEC Filing on Google Icon
11/14/2025Schonfeld Strategic Advisors LLC49,610$0.60M0.0%N/A0.073%Search for SEC Filing on Google Icon
11/14/2025Creative Planning51,554$0.62M0.0%+4.9%0.076%Search for SEC Filing on Google Icon
11/14/2025Lazard Asset Management LLC184,855$2.22M0.0%+449.6%0.272%Search for SEC Filing on Google Icon
11/14/2025Zacks Investment Management117,352$1.41M0.0%N/A0.173%Search for SEC Filing on Google Icon
11/14/2025Raymond James Financial Inc.188,570$2.26M0.0%+0.8%0.277%Search for SEC Filing on Google Icon
11/14/2025Man Group plc19,914$0.24M0.0%N/A0.029%Search for SEC Filing on Google Icon
11/14/2025UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC128,331$1.54M0.0%-53.2%0.189%Search for SEC Filing on Google Icon
11/14/2025Two Sigma Investments LP420,497$5.04M0.0%+20.5%0.618%Search for SEC Filing on Google Icon
11/14/2025Bridgeway Capital Management LLC442,088$5.30M0.1%+82.1%0.650%Search for SEC Filing on Google Icon
11/14/2025Squarepoint Ops LLC377,040$4.52M0.0%+79.5%0.554%Search for SEC Filing on Google Icon
11/14/2025Private Management Group Inc.504,527$6.05M0.2%-22.8%0.742%Search for SEC Filing on Google Icon
11/13/2025Seven Six Capital Management LLC178,513$2.14M2.1%-35.2%0.263%Search for SEC Filing on Google Icon
11/13/2025Arrowstreet Capital Limited Partnership803,586$9.64M0.0%-4.5%1.182%Search for SEC Filing on Google Icon
11/13/2025Employees Retirement System of Texas15,549$0.19M0.0%-57.1%0.023%Search for SEC Filing on Google Icon
11/13/2025UBS Group AG85,826$1.03M0.0%-46.9%0.126%Search for SEC Filing on Google Icon
11/13/2025BNP Paribas Financial Markets429,833$5.15M0.0%-8.4%0.632%Search for SEC Filing on Google Icon
11/13/2025Mackenzie Financial Corp139,482$1.67M0.0%+309.2%0.205%Search for SEC Filing on Google Icon
11/13/2025Magnetar Financial LLC30,435$0.37M0.0%N/A0.045%Search for SEC Filing on Google Icon
11/13/2025Legal & General Group Plc77,966$0.94M0.0%-2.6%0.115%Search for SEC Filing on Google Icon
11/13/2025WINTON GROUP Ltd45,466$0.55M0.0%+4.2%0.067%Search for SEC Filing on Google Icon
11/13/2025Russell Investments Group Ltd.141,097$1.69M0.0%+1,440.4%0.207%Search for SEC Filing on Google Icon
11/13/2025Dynamic Technology Lab Private Ltd62,606$0.75M0.1%+319.9%0.092%Search for SEC Filing on Google Icon
11/12/2025Systematic Alpha Investments LLC28,600$0.34M0.0%N/A0.042%Search for SEC Filing on Google Icon
11/12/2025Barclays PLC125,940$1.51M0.0%-23.1%0.185%Search for SEC Filing on Google Icon
11/12/2025Dimensional Fund Advisors LP4,323,251$51.84M0.0%+0.8%6.358%Search for SEC Filing on Google Icon
11/12/2025Victory Capital Management Inc.99,550$1.19M0.0%-1.4%0.146%Search for SEC Filing on Google Icon
11/12/2025Segall Bryant & Hamill LLC222,266$2.67M0.0%-0.5%0.327%Search for SEC Filing on Google Icon
11/12/2025American Century Companies Inc.2,412,467$28.93M0.0%+10.6%3.548%Search for SEC Filing on Google Icon
11/12/2025Quantbot Technologies LP40,919$0.49M0.0%-41.2%0.060%Search for SEC Filing on Google Icon
11/12/2025R Squared Ltd16,965$0.20M0.1%+65.6%0.025%Search for SEC Filing on Google Icon
11/12/2025Intech Investment Management LLC34,202$0.41M0.0%-17.9%0.050%Search for SEC Filing on Google Icon
11/12/2025Fox Run Management L.L.C.38,346$0.46M0.1%+48.5%0.056%Search for SEC Filing on Google Icon
11/10/2025MAI Capital Management2,161$26K0.0%+79.2%0.003%Search for SEC Filing on Google Icon
11/10/2025Ameritas Investment Partners Inc.5,562$67K0.0%-14.0%0.008%Search for SEC Filing on Google Icon
11/10/2025Semanteon Capital Management LP47,420$0.57M0.7%N/A0.070%Search for SEC Filing on Google Icon
11/7/2025CenterBook Partners LP518,331$6.22M0.3%+47.6%0.762%Search for SEC Filing on Google Icon
11/7/2025GSA Capital Partners LLP149,542$1.79M0.1%-32.3%0.220%Search for SEC Filing on Google Icon
11/7/2025Vanguard Group Inc.3,879,301$46.51M0.0%-0.1%5.705%Search for SEC Filing on Google Icon
11/7/2025JPMorgan Chase & Co.888,739$10.66M0.0%+12.6%1.307%Search for SEC Filing on Google Icon
11/6/2025Rhumbline Advisers104,620$1.25M0.0%-2.2%0.154%Search for SEC Filing on Google Icon
11/6/2025Essex Investment Management Co. LLC308,809$3.70M0.6%+3.4%0.454%Search for SEC Filing on Google Icon
11/6/2025ProShare Advisors LLC11,382$0.14M0.0%-16.6%0.017%Search for SEC Filing on Google Icon
11/5/2025Alps Advisors Inc.37,750$0.45M0.0%N/A0.056%Search for SEC Filing on Google Icon
11/5/2025Thompson Davis & CO. Inc.26,600$0.32M0.2%-53.4%0.039%Search for SEC Filing on Google Icon
11/5/2025IQ EQ FUND MANAGEMENT IRELAND Ltd59,260$0.71M0.0%+28.7%0.087%Search for SEC Filing on Google Icon
11/5/2025Castlekeep Investment Advisors LLC454,529$5.45M2.5%-4.7%0.668%Search for SEC Filing on Google Icon
11/5/2025Cullen Capital Management LLC74,678$0.90M0.0%-23.1%0.110%Search for SEC Filing on Google Icon
11/5/2025Envestnet Asset Management Inc.11,038$0.13M0.0%N/A0.016%Search for SEC Filing on Google Icon
11/4/2025State of Wyoming36,148$0.43M0.0%+3.3%0.053%Search for SEC Filing on Google Icon
11/4/2025Principal Financial Group Inc.55,291$0.66M0.0%+46.2%0.081%Search for SEC Filing on Google Icon
11/4/2025Thrivent Financial for Lutherans109,356$1.31M0.0%-29.7%0.161%Search for SEC Filing on Google Icon
11/4/2025Keybank National Association OH30,175$0.36M0.0%-10.5%0.044%Search for SEC Filing on Google Icon
11/3/2025AlphaQuest LLC84,740$1.02M0.1%+329.6%0.125%Search for SEC Filing on Google Icon
11/3/2025AE Wealth Management LLC19,175$0.23M0.0%+8.1%0.028%Search for SEC Filing on Google Icon
11/3/2025Federated Hermes Inc.7,086$85K0.0%+42.7%0.010%Search for SEC Filing on Google Icon
10/31/2025Y Intercept Hong Kong Ltd102,318$1.23M0.0%N/A0.150%Search for SEC Filing on Google Icon
10/30/2025Bailard Inc.23,077$0.28M0.0%+37.4%0.034%Search for SEC Filing on Google Icon
10/30/2025Universal Beteiligungs und Servicegesellschaft mbH58,028$0.70M0.0%N/A0.085%Search for SEC Filing on Google Icon
10/29/2025Bfsg LLC178,307$2.14M0.2%-0.9%0.262%Search for SEC Filing on Google Icon
10/28/2025Campbell & CO Investment Adviser LLC19,523$0.23M0.0%N/A0.029%Search for SEC Filing on Google Icon
10/24/2025State of Alaska Department of Revenue3,908$46K0.0%N/A0.006%Search for SEC Filing on Google Icon
10/23/2025SG Americas Securities LLC92,432$1.11M0.0%+34.6%0.136%Search for SEC Filing on Google Icon
10/23/2025HB Wealth Management LLC88,226$1.06M0.0%N/A0.130%Search for SEC Filing on Google Icon
10/23/2025KLP Kapitalforvaltning AS16,600$0.20M0.0%+41.9%0.024%Search for SEC Filing on Google Icon
10/20/2025Allspring Global Investments Holdings LLC494,033$5.88M0.0%+99.2%0.727%Search for SEC Filing on Google Icon
10/15/2025CWM LLC6,995$84K0.0%+125.0%0.010%Search for SEC Filing on Google Icon
10/9/2025Voya Investment Management LLC12,806$0.15M0.0%-33.1%0.019%Search for SEC Filing on Google Icon
9/30/2025Cullen Capital Management LLC97,128$1.18M0.0%-18.0%0.143%Search for SEC Filing on Google Icon
8/27/2025Squarepoint Ops LLC210,029$2.56M0.0%+109.2%0.309%Search for SEC Filing on Google Icon
8/20/2025Thompson Davis & CO. Inc.57,100$0.70M0.4%+4.5%0.084%Search for SEC Filing on Google Icon
8/19/2025State of Wyoming35,006$0.43M0.1%N/A0.051%Search for SEC Filing on Google Icon
8/18/2025Caxton Associates LLP19,917$0.24M0.0%N/A0.029%Search for SEC Filing on Google Icon
8/15/2025Tower Research Capital LLC TRC 12,816$0.16M0.0%+440.8%0.019%Search for SEC Filing on Google Icon
8/15/2025Oxford Asset Management LLP10,111$0.12M0.0%-49.5%0.015%Search for SEC Filing on Google Icon
8/15/2025Lazard Asset Management LLC33,636$0.41M0.0%N/A0.049%Search for SEC Filing on Google Icon
8/15/2025Cubist Systematic Strategies LLC492,191$6M0.0%+404.0%0.724%Search for SEC Filing on Google Icon
8/15/2025BNP Paribas Financial Markets469,259$5.72M0.0%+11.0%0.690%Search for SEC Filing on Google Icon
8/15/2025Bridgeway Capital Management LLC242,820$2.96M0.1%+8.7%0.357%Search for SEC Filing on Google Icon
8/15/2025Balyasny Asset Management L.P.99,902$1.22M0.0%+109.1%0.147%Search for SEC Filing on Google Icon
8/15/2025Bank of America Corp DE245,097$2.99M0.0%+73.4%0.360%Search for SEC Filing on Google Icon
8/15/2025Ameriprise Financial Inc.70,266$0.86M0.0%+12.0%0.103%Search for SEC Filing on Google Icon
8/14/2025Raymond James Financial Inc.187,094$2.28M0.0%+15.2%0.275%Search for SEC Filing on Google Icon
8/14/2025MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.36,474$0.45M0.0%-6.9%0.054%Search for SEC Filing on Google Icon
Data available starting January 2016

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Great Lakes Dredge & Dock logo
Great Lakes Dredge & Dock Corp. engages in the provision of dredging services. Its projects include channel and port maintenance, channel deepening and port expansion, coastal protection and restoration, as well as land reclamation. The company was founded by William A. Lydon and Frederick C. Drews in 1890 and is headquartered in Houston, TX.
Read More on Great Lakes Dredge & Dock

Today's Range

Now: $12.89
Low: $12.80
High: $13.08

50 Day Range

MA: $11.90
Low: $10.78
High: $13.05

52 Week Range

Now: $12.89
Low: $7.51
High: $13.10

Volume

359,229 shs

Average Volume

360,766 shs

Market Capitalization

$876.52 million

P/E Ratio

10.92

Dividend Yield

N/A

Beta

1.43

Who are the company insiders with the largest holdings of Great Lakes Dredge & Dock?

Great Lakes Dredge & Dock's top insider shareholders include:
  1. Lasse Petterson (CEO)
  2. Kathleen M Shanahan (Director)
  3. Christopher Gunsten (SVP)
  4. Eleni Beyko (SVP)
  5. Ronald Steger (Director)
Learn More about top insider investors at Great Lakes Dredge & Dock.

Who are the major institutional investors of Great Lakes Dredge & Dock?

Great Lakes Dredge & Dock's top institutional shareholders include:
  1. Dimensional Fund Advisors LP — 6.36%
  2. Vanguard Group Inc. — 5.71%
  3. Harvey Partners LLC — 5.44%
  4. American Century Companies Inc. — 3.55%
  5. Millennium Management LLC — 1.69%
  6. JPMorgan Chase & Co. — 1.31%
Learn More about top institutional investors of Great Lakes Dredge & Dock stock.

Which institutional investors are selling Great Lakes Dredge & Dock stock?

Within the last quarter, GLDD stock was sold by these institutional investors:
  1. Private Management Group Inc.
  2. UBS AM A Distinct Business Unit of UBS Asset Management Americas LLC
  3. Seven Six Capital Management LLC
  4. UBS Group AG
  5. GSA Capital Partners LLP
  6. London Co. of Virginia
  7. Thrivent Financial for Lutherans
  8. BNP Paribas Financial Markets
Within the last year, company insiders that have sold Great Lakes Dredge & Dock company stock include:
  1. Lasse Petterson (CEO)
  2. Kathleen M Shanahan (Director)
Learn More investors selling Great Lakes Dredge & Dock stock.

Which institutional investors are buying Great Lakes Dredge & Dock stock?

In the previous quarter, GLDD stock was bought by institutional investors including:
  1. Millennium Management LLC
  2. Qube Research & Technologies Ltd
  3. Allspring Global Investments Holdings LLC
  4. American Century Companies Inc.
  5. Bridgeway Capital Management LLC
  6. CenterBook Partners LP
  7. Squarepoint Ops LLC
  8. Lazard Asset Management LLC