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Simplex Trading, LLC

SEC CIK
0001488542
Latest filing
Aug 12, 2026

MLM holding history

Martin Marietta Materials Inc in every 13F filed by Simplex Trading, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MLM overviewAll 13F holders of MLMFull Q2 2026 holdings

Shares (Q2 2026)
1,606
Value
$926.2K
% of portfolio
<0.1%
Quarters held
10
Since Q1 2021
Holdings of MLM by Simplex Trading, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20261,606$926.2K<0.1%+1,606NewHolders
Q3 20250$00.0%−2,703−100.0%Sold outHolders
Q2 20252,703$1.48M<0.1%−872−24.4%ReducedHolders
Q1 20253,575$1.71M0.1%+354+11.0%AddedHolders
Q4 20243,221$1.66M<0.1%+2,852+772.9%AddedHolders
Q3 2024369$198.0K<0.1%−1,225−76.9%ReducedHolders
Q2 20241,594$863.0K<0.1%−4,179−72.4%ReducedHolders
Q1 20245,773$3.54M0.1%+5,381+1,372.7%AddedHolders
Q4 2023392$195.0K<0.1%+392NewHolders
Q3 20220$00.0%−1,960−100.0%Sold outHolders
Q2 20221,960$586.0K<0.1%+1,960NewHolders
Q2 20210$00.0%−5,206−100.0%Sold outHolders
Q1 20215,206$1.75M0.1%––Holders

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