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Custom Index Systems, LLC

SEC CIK
0002003672
Latest filing
Aug 14, 2026

MPLX holding history

MPLX LP in every 13F filed by Custom Index Systems, LLC, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MPLX overviewAll 13F holders of MPLXFull Q2 2026 holdings

Shares (Q3 2025)
0
Sold out in Q3 2025
Value
$0
% of portfolio
0.0%
Quarters held
7
Since Q4 2023
Holdings of MPLX by Custom Index Systems, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q3 20250$00.0%−19,116−100.0%Sold outHolders
Q2 202519,116$984.7K0.5%−2,439−11.3%ReducedHolders
Q1 202521,555$1.15M0.6%−4,602−17.6%ReducedHolders
Q4 202426,157$1.25M0.7%−996−3.7%ReducedHolders
Q3 202427,153$1.21M0.7%−6,924−20.3%ReducedHolders
Q2 202434,077$1.45M0.8%−4,708−12.1%ReducedHolders
Q1 202438,785$1.61M0.9%−4,627−10.7%ReducedHolders
Q4 202343,412$1.59M1.0%–No prior filingHolders