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Livermore
Livermore
ZHEN

Renaissance Technologies LLC

SEC CIK
0001037389
Latest filing
Aug 13, 2026

GLDD holding history

Great Lakes Dredge & Dock CORP in every 13F filed by Renaissance Technologies LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

GLDD overviewAll 13F holders of GLDDFull Q2 2026 holdings

Shares (Q2 2026)
0
Sold out in Q2 2026
Value
$0
% of portfolio
0.0%
Quarters held
21
Since Q1 2021
Holdings of GLDD by Renaissance Technologies LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20260$00.0%−381,700−100.0%Sold outHolders
Q1 2026381,700$6.49M<0.1%+122,909+47.5%AddedHolders
Q4 2025258,791$3.40M<0.1%+3,735+1.5%AddedHolders
Q3 2025255,056$3.06M<0.1%−129,332−33.6%ReducedHolders
Q2 2025384,388$4.69M<0.1%+267,988+230.2%AddedHolders
Q1 2025116,400$1.01M<0.1%−162,201−58.2%ReducedHolders
Q4 2024278,601$3.15M<0.1%+47,500+20.6%AddedHolders
Q3 2024231,101$2.43M<0.1%−94,500−29.0%ReducedHolders
Q2 2024325,601$2.86M<0.1%−137,823−29.7%ReducedHolders
Q1 2024463,424$4.05M<0.1%−200,677−30.2%ReducedHolders
Q4 2023664,101$5.10M<0.1%+53,900+8.8%AddedHolders
Q3 2023610,201$4.86M<0.1%−119,600−16.4%ReducedHolders
Q2 2023729,801$5.96M<0.1%−355,700−32.8%ReducedHolders
Q1 20231,085,501$5.89M<0.1%−174,034−13.8%ReducedHolders
Q4 20221,259,535$7.49M<0.1%−21,266−1.7%ReducedHolders
Q3 20221,280,801$9.71M<0.1%−191,700−13.0%ReducedHolders
Q2 20221,472,501$19.3M<0.1%−18,700−1.3%ReducedHolders
Q1 20221,491,201$20.9M<0.1%−48,500−3.1%ReducedHolders
Q4 20211,539,701$24.2M<0.1%−84,500−5.2%ReducedHolders
Q3 20211,624,201$24.5M<0.1%−155,700−8.7%ReducedHolders
Q2 20211,779,901$26.0M<0.1%−369,765−17.2%ReducedHolders
Q1 20212,149,666$31.3M<0.1%––Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.