Data from public SEC 13F & STOCK Act filings, delayed up to ~45 days, partial holdings only — for research, not investment advice.
MPC
MARATHON PETROLEUM CORPData as of 2026 Q1 (03-31) · 13F snapshot
Summary
MARATHON PETROLEUM CORP (MPC) is held by 9 tracked hedge-fund managers, a combined reported value of ~$2.47B; the largest are Paul Singer, Seth Klarman, Dan Loeb. This quarter: 2 added, 2 trimmed, 2 closed. 20 members of Congress have disclosed STOCK Act trades. Data as of 2026 Q1, from public SEC 13F filings, delayed up to ~45 days.
Attention · HighThis quarter · Cooling
Gurus holding9
Congress trades20
Price$263.58vs quarter-end+7.94%
Sectors1
This quarter's moves
Top holderPaul SingerNew0
Added2
Trimmed / sold4
Paul SingerHold
Value $1.28B12.7% of portfolio7,365,0002024 Q2
Seth KlarmanNew large stake
Value $318.09M2.9% of portfolio7,690,7212020 Q4
Value $191.97M— of portfolio3,000,0002021 Q4
Value $108.71M— of portfolio445,2002026 Q1
Value $79.92M— of portfolio327,3002026 Q1
Value $17.26M— of portfolio70,7002026 Q1
Value $7.25M— of portfolio29,7002026 Q1
Value $6.52M— of portfolio26,7002026 Q1
Value $4.42M— of portfolio18,1002026 Q1
Value $1.20M— of portfolio1,000,0002013 Q2
| Investor | Value | % of portfolio | Action |
|---|---|---|---|
| Paul Singer | $1.28B | 12.7% | Hold |
| Seth Klarman | $318.09M | 2.9% | New large stake |
| Paul SingerCALL | $191.97M | — | — |
| Ken GriffinCALL | $108.71M | — | — |
| Ken GriffinPUT | $79.92M | — | — |
| Izzy EnglanderCALL | $17.26M | — | — |
| Steven CohenPUT | $7.25M | — | — |
| Izzy EnglanderPUT | $6.52M | — | — |
| Steven CohenCALL | $4.42M | — | — |
| Dan LoebCALL | $1.20M | — | — |