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Blackstone Group Inc.

SEC CIK
0001393818
Latest filing
Aug 14, 2026

MPLX holding history

MPLX LP in every 13F filed by Blackstone Group Inc., 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)
12,956,943
Value
$729.9M
% of portfolio
2.4%
Quarters held
22
Since Q1 2021
Holdings of MPLX by Blackstone Group Inc., by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202612,956,943$729.9M2.4%−2,393,740−15.6%ReducedHolders
Q1 202615,350,683$876.1M3.6%−354,802−2.3%ReducedHolders
Q4 202515,705,485$838.2M3.6%+1,687,768+12.0%AddedHolders
Q3 202514,017,717$700.2M3.0%−2,925,721−17.3%ReducedHolders
Q2 202516,943,438$872.8M3.9%−556,560−3.2%ReducedHolders
Q1 202517,499,998$936.6M4.1%−1,744,969−9.1%ReducedHolders
Q4 202419,244,967$921.1M4.4%−2,576,438−11.8%ReducedHolders
Q3 202421,821,405$970.2M4.4%−1,318,339−5.7%ReducedHolders
Q2 202423,139,744$985.5M4.4%−84,844−0.4%ReducedHolders
Q1 202423,224,588$965.2M4.2%−188,844−0.8%ReducedHolders
Q4 202323,413,432$859.7M4.0%−8,569,859−26.8%ReducedHolders
Q3 202331,983,291$1.14B4.9%−12,985,616−28.9%ReducedHolders
Q2 202344,968,907$1.53B6.7%−5,509,647−10.9%ReducedHolders
Q1 202350,478,554$1.74B7.3%−37,974−0.1%ReducedHolders
Q4 202250,516,528$1.66B6.3%−4,437,527−8.1%ReducedHolders
Q3 202254,954,055$1.65B6.1%−2,620,193−4.6%ReducedHolders
Q2 202257,574,248$1.68B5.6%−987,411−1.7%ReducedHolders
Q1 202258,561,659$1.94B4.9%−7,566,090−11.4%ReducedHolders
Q4 202166,127,749$1.96B4.9%−612,543−0.9%ReducedHolders
Q3 202166,740,292$1.90B4.2%−996,054−1.5%ReducedHolders
Q2 202167,736,346$2.01B4.7%+257,000+0.4%AddedHolders
Q1 202167,479,346$1.73B4.1%––Holders

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