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Livermore
Livermore
ZHEN

Castleark Management LLC

SEC CIK
0001106832
Latest filing
Aug 14, 2026

MPC holding history

Marathon Petroleum Corp in every 13F filed by Castleark Management 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 (Q2 2026)
22,400
Value
$5.73M
% of portfolio
0.2%
Quarters held
21
Since Q1 2021
Holdings of MPC by Castleark Management LLC, by quarter
QuarterSharesValue% of portfolioShare changeActionAll holders
Q2 202622,400$5.73M0.2%00.0%UnchangedHolders
Q1 202622,400$5.47M0.2%+22,400NewHolders
Q4 20250$00.0%−46,258−100.0%Sold outHolders
Q3 202546,258$8.92M0.2%+43,920+1,878.5%AddedHolders
Q2 20252,338$388.4K<0.1%00.0%UnchangedHolders
Q1 20252,338$340.6K<0.1%−96,051−97.6%ReducedHolders
Q4 202498,389$13.7M0.5%+87,150+775.4%AddedHolders
Q3 202411,239$1.83M0.1%−6,040−35.0%ReducedHolders
Q2 202417,279$3.00M0.1%−2,460−12.5%ReducedHolders
Q1 202419,739$3.98M0.2%+3,200+19.3%AddedHolders
Q4 202316,539$2.45M0.1%00.0%UnchangedHolders
Q3 202316,539$2.50M0.1%+3,770+29.5%AddedHolders
Q2 202312,769$1.49M0.1%−14,100−52.5%ReducedHolders
Q1 202326,869$3.62M0.2%00.0%UnchangedHolders
Q4 202226,869$3.13M0.2%00.0%UnchangedHolders
Q3 202226,869$2.67M0.1%−6,710−20.0%ReducedHolders
Q2 202233,579$2.76M0.1%00.0%UnchangedHolders
Q1 202233,579$2.87M0.1%−6,610−16.4%ReducedHolders
Q4 202140,189$2.57M0.1%−6,750−14.4%ReducedHolders
Q3 202146,939$2.90M0.1%−10,315−18.0%ReducedHolders
Q2 202157,254$3.46M0.1%+1,606+2.9%AddedHolders
Q1 202155,648$2.98M0.1%––Holders

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