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Simplex Trading, LLC

SEC CIK
0001488542
Latest filing
Aug 12, 2026

MPC holding history

Marathon Petroleum Corp 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.

MPC overviewAll 13F holders of MPCFull Q2 2026 holdings

Shares (Q4 2025)
0
Sold out in Q4 2025
Value
$0
% of portfolio
0.0%
Quarters held
13
Since Q2 2021
Holdings of MPC by Simplex Trading, LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q4 20250$00.0%−6,451−100.0%Sold outHolders
Q3 20256,451$1.24M<0.1%−10,047−60.9%ReducedHolders
Q2 202516,498$2.74M0.1%−2,128−11.4%ReducedHolders
Q1 202518,626$2.71M0.1%+18,626NewHolders
Q3 20240$00.0%−26,203−100.0%Sold outHolders
Q2 202426,203$4.54M0.1%+26,203NewHolders
Q1 20240$00.0%−71,045−100.0%Sold outHolders
Q4 202371,045$10.5M0.3%+71,045NewHolders
Q3 20230$00.0%−14,431−100.0%Sold outHolders
Q2 202314,431$1.68M0.1%+14,431NewHolders
Q1 20230$00.0%−1,100−100.0%Sold outHolders
Q4 20221,100$128.0K<0.1%+200+22.2%AddedHolders
Q3 2022900$89.0K<0.1%00.0%UnchangedHolders
Q2 2022900$73.0K<0.1%00.0%UnchangedHolders
Q1 2022900$76.0K<0.1%−31,814−97.2%ReducedHolders
Q4 202132,714$2.09M0.1%−70,807−68.4%ReducedHolders
Q3 2021103,521$6.34M0.2%+1,688+1.7%AddedHolders
Q2 2021101,833$6.15M0.2%+101,833NewHolders