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Livermore
Livermore
ZHEN

Mariner, LLC

SEC CIK
0001373442
Latest filing
Aug 13, 2026

MPLX holding history

MPLX LP in every 13F filed by Mariner, 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 (Q2 2026)
1,143,271
Value
$64.4M
% of portfolio
0.1%
Quarters held
22
Since Q1 2021
Holdings of MPLX by Mariner, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 20261,143,271$64.4M0.1%−9,331−0.8%ReducedHolders
Q1 20261,152,602$65.8M0.1%−674−0.1%ReducedHolders
Q4 20251,153,276$61.6M0.1%+36,377+3.3%AddedHolders
Q3 20251,116,899$55.8M0.1%−4170.0%ReducedHolders
Q2 20251,117,316$57.6M0.1%+50,568+4.7%AddedHolders
Q1 20251,066,748$57.1M0.1%+12,473+1.2%AddedHolders
Q4 20241,054,275$50.5M0.1%−4,144−0.4%ReducedHolders
Q3 20241,058,419$47.1M0.1%−3,633−0.3%ReducedHolders
Q2 20241,062,052$45.2M0.1%+49,701+4.9%AddedHolders
Q1 20241,012,351$42.1M0.1%+317,801+45.8%AddedHolders
Q4 2023694,550$25.5M0.1%−855−0.1%ReducedHolders
Q3 2023695,405$24.7M0.1%+3,016+0.4%AddedHolders
Q2 2023692,389$23.5M0.1%+20,869+3.1%AddedHolders
Q1 2023671,520$23.1M0.1%−1,204−0.2%ReducedHolders
Q4 2022672,724$22.1M0.1%−37,223−5.2%ReducedHolders
Q3 2022709,947$21.3M0.1%+981+0.1%AddedHolders
Q2 2022708,966$20.7M0.1%+39,802+5.9%AddedHolders
Q1 2022669,164$22.2M0.1%−25,094−3.6%ReducedHolders
Q4 2021694,258$20.5M0.1%−603,514−46.5%ReducedHolders
Q3 20211,297,772$36.9M0.2%+17,112+1.3%AddedHolders
Q2 20211,280,660$37.9M0.2%+568,481+79.8%AddedHolders
Q1 2021712,179$18.3M0.1%––Holders

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