GREAT LAKES DREDGE & DOCK CO (GLDD) Institutional Ownership Changes & 13F Activity

GREAT LAKES DREDGE & DOCK CO (GLDD). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q1 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Harvey Partners, Llc, Fil Ltd, Balyasny Asset Management L.P., Two Sigma Investments, Lp, and Water Island Capital Llc.

InstitutionTypeChange in sharesChange Position %SharesReported stock balancePortfolio quarterFiling date
Algert Global LlcSell-343,302-100.0%0$0.00Q1 2026Aug 11, 2026
Wells Fargo & Company/MnSell-49,485-58.4%35,282$599.79KQ1 2026Jul 08, 2026
Oddo Bhf Asset Management SasBuy+1,166,388—1,166,388$19.83MQ1 2026May 18, 2026
Bank Of America CorpSell-158,251-47.6%173,986$2.96MQ1 2026May 18, 2026
California State Teachers Retirement SystemBuy+29,107+47.0%91,090$1.55MQ1 2026May 18, 2026
Harvey Partners, LlcSell-3,093,215-83.5%610,000$10.37MQ1 2026May 15, 2026
Fil LtdBuy+2,671,231—2,671,231$45.41MQ1 2026May 15, 2026
Balyasny Asset Management L.P.Buy+1,626,990—1,626,990$27.66MQ1 2026May 15, 2026
Two Sigma Investments, LpBuy+1,418,839+248.6%1,989,521$33.82MQ1 2026May 15, 2026
Water Island Capital LlcBuy+1,263,580—1,263,580$21.48MQ1 2026May 15, 2026
Beryl Capital Management LlcBuy+912,537—912,537$15.51MQ1 2026May 15, 2026
Sand Grove Capital Management LlpBuy+893,190—893,190$15.18MQ1 2026May 15, 2026
Omers Administration CorpBuy+864,000—864,000$14.69MQ1 2026May 15, 2026
Qube Research & Technologies LtdBuy+753,487+119.6%1,383,585$23.52MQ1 2026May 15, 2026
Aqr Arbitrage LlcBuy+730,615—730,615$12.42MQ1 2026May 15, 2026
Morgan StanleySell-690,455-67.7%329,163$5.60MQ1 2026May 15, 2026
Tig Advisors, LlcBuy+642,867—642,867$10.93MQ1 2026May 15, 2026
Cinctive Capital Management LpBuy+500,000—500,000$8.50MQ1 2026May 15, 2026
Millennium Management LlcSell-466,354-29.2%1,131,127$19.23MQ1 2026May 15, 2026
American Century Companies IncBuy+421,815+16.3%3,006,419$51.11MQ1 2026May 15, 2026
Schonfeld Strategic Advisors LlcBuy+396,612+1070.3%433,667$7.37MQ1 2026May 15, 2026
D. E. Shaw & Co., Inc.Sell-323,750-77.8%92,353$1.57MQ1 2026May 15, 2026
Point72 Asset Management, L.P.Sell-313,686-91.1%30,557$519.47KQ1 2026May 15, 2026
Prelude Capital Management, LlcBuy+255,852—255,852$4.35MQ1 2026May 15, 2026
Goldman Sachs Group IncBuy+223,901+35.3%858,621$14.60MQ1 2026May 15, 2026
Voloridge Investment Management, LlcBuy+208,184—208,184$3.54MQ1 2026May 15, 2026
Squarepoint Ops LlcBuy+201,742+52.7%584,315$9.93MQ1 2026May 15, 2026
Polar Asset Management Partners Inc.Buy+200,000—200,000$3.40MQ1 2026May 15, 2026
Aqr Capital Management LlcSell-126,639-48.5%134,432$2.29MQ1 2026May 15, 2026
Citadel Advisors LlcSell-116,436-75.6%37,516$637.77KQ1 2026May 15, 2026
Showing 30 of 247

Frequently asked questions about GLDD activity

  • Which institutional owners are buying GLDD?

    Institutional owners buying GLDD include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.

  • What does "buy" mean in GLDD activity?

    "Buy" means an investor increased their reported position in GLDD compared to the prior reporting period. This reflects growing exposure to GREAT LAKES DREDGE & DOCK CO (GLDD) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).

  • Is institutional interest in GLDD increasing?

    Institutional interest in GLDD can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.