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MPC in the 13F filings

Marathon Pete Corp · CUSIP 56585A102

Sector · EnergyTheme · Energy and power infrastructure· L3VLUP-definedTheme · Oil and gas
Quarter
Q3 2026 · early filersQ2 2026Q1 2026Q4 2025Q3 2025Q2 2025Q1 2025Q4 2024Q3 2024Q2 2024Q1 2024Q4 2023
Quarter end
31 Mar 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 12 May 2026
Managers listing it
32
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q4 2025 and Q1 2026; 13 listed it in both
Shares listed
23,203,181
combined, among listed positions
Reported value
$5.6bn
combined, at the quarter end

AllianceBernstein LP. Values in this filing are at the previous quarter end's prices; its share count is the quarter end's.

Among the 91 comparable managers: 19 buyers (opened or added shares) and 20 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -1,604,479.

Managers listing MPC in Q1 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q4 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

32 of 32 holders

ActionFiling
Wellington Management Group LLP5,637,187$1.4bn0.26%Trimmed-1,566,34915 May 2026 (the filing on sec.gov)
Fidelity (FMR LLC)4,911,081$1.2bn0.06%Added+1,439,06815 May 2026 (the filing on sec.gov)
Invesco Ltd2,828,645$691m0.07%Added+228,45412 May 2026 (the filing on sec.gov)
Harris Associates LP2,805,972$685m0.91%Trimmed-1,225,99015 May 2026 (the filing on sec.gov)
Two Sigma Investments LP1,524,286$372m0.30%Added+636,75215 May 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc1,283,092$313munder 0.1%Trimmed-775,58415 May 2026 (the filing on sec.gov)
Acadian Asset Management LLC530,588$130m0.18%Added+310,07313 May 2026 (the filing on sec.gov)
AQR Capital Management LLC432,606$106munder 0.1%Added+23,16615 May 2026 (the filing on sec.gov)
Millennium Management LLC431,939$105munder 0.1%Added+288,58315 May 2026 (the filing on sec.gov)
Holocene Advisors LP414,134$101m0.24%Newnew15 May 2026 (the filing on sec.gov)
Arrowstreet Capital LP410,459$100m0.05%Added+376,72114 May 2026 (the filing on sec.gov)
Marshall Wace LLP383,336$94m0.09%Added+149,93615 May 2026 (the filing on sec.gov)
Squarepoint Ops LLC369,453$90m0.11%Added+215,32415 May 2026 (the filing on sec.gov)
AllianceBernstein LP369,572$60munder 0.1%Trimmed-15,96715 May 2026 (the filing on sec.gov)
Citadel Advisors LLC202,060$49munder 0.1%Trimmed-710,19215 May 2026 (the filing on sec.gov)
Man Group PLC142,248$35m0.06%Trimmed-426,54215 May 2026 (the filing on sec.gov)
Susquehanna International Group LLP97,162$24munder 0.1%Trimmed-71,63915 May 2026 (the filing on sec.gov)
Neuberger Berman Group LLC86,418$21munder 0.1%Added+6,57327 Oct 2026 (the filing on sec.gov)
Bridgewater Associates LP77,283$19m0.08%Trimmed-118,27015 May 2026 (the filing on sec.gov)
Woodline Partners LP58,000$14m0.05%Added+6,64915 May 2026 (the filing on sec.gov)
ExodusPoint Capital Management LP49,764$12m0.10%Newnew14 May 2026 (the filing on sec.gov)
Janus Henderson Group Ltd33,092$8.1munder 0.1%Added+14,36318 May 2026 (the filing on sec.gov)
Verition Fund Management LLC32,902$8.0m0.05%Trimmed-23,50015 May 2026 (the filing on sec.gov)
D. E. Shaw & Co.32,374$7.9munder 0.1%Added+30,62415 May 2026 (the filing on sec.gov)
Jane Street Group LLC28,472$7.0munder 0.1%Trimmed-106,70312 May 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q4 2025 to Q1 2026, among managers that listed it in both quarters or opened it.

Increases

Reductions

New positions and exits

At least these many: a manager is shown exiting only where its own filing shows the position gone.

New (4)

Exited (7)

Ownership over time

Every quarter on file. A quarter-end value moves with the price as well as with the shares held; buyers and sellers count comparable managers, by shares.
12 in Q3 2024 to 18 in Q2 2026

Tracked managers listing it, at least.

0102030402014201620182020202220242026
the quarter shown share split complete books; unmarked quarters rest on listed positionsClick a quarter to open it.
MPC by quarter
QuarterHoldersReported valueBuyersSellers
Q2 201319$2.7bnn.a.n.a.
Q3 201317$2.0bnn.a.n.a.
Q4 201320$2.7bnn.a.n.a.
Q1 201423$2.4bnn.a.n.a.
Q2 201421$1.8bnn.a.n.a.
Q3 201416$2.2bnn.a.n.a.
Q4 201415$2.7bnn.a.n.a.
Q1 201522$3.4bnn.a.n.a.
Q2 201519$3.2bnn.a.n.a.
Q3 201521$2.8bnn.a.n.a.
Q4 201524$3.1bnn.a.n.a.
Q1 201618$1.7bnn.a.n.a.
Q2 201616$2.0bnn.a.n.a.
Q3 201622$2.5bnn.a.n.a.
Q4 201624$3.0bnn.a.n.a.
Q1 201720$2.3bnn.a.n.a.
Q2 201721$2.4bnn.a.n.a.
Q3 201720$3.0bnn.a.n.a.
Q4 201722$3.3bnn.a.n.a.
Q1 201821$3.5bnn.a.n.a.
Q2 201826$3.1bnn.a.n.a.
Q3 201835$5.0bnn.a.n.a.
Q4 201830$4.7bnn.a.n.a.
Q1 201930$4.5bnn.a.n.a.
Q2 201928$4.0bnn.a.n.a.
Q3 201922$3.7bnn.a.n.a.
Q4 201927$3.7bnn.a.n.a.
Q1 202014$897mn.a.n.a.
Q2 202014$1.6bnn.a.n.a.
Q3 202011$1.0bnn.a.n.a.
Q4 202010$1.8bnn.a.n.a.
Q1 202115$1.9bnn.a.n.a.
Q2 202119$2.7bnn.a.n.a.
Q3 202111$2.7bnn.a.n.a.
Q4 202110$2.3bnn.a.n.a.
Q1 202217$3.3bnn.a.n.a.
Q2 202227$3.9bnn.a.n.a.
Q3 202224$4.3bnn.a.n.a.
Q4 202227$5.2bnn.a.n.a.
Q1 202322$4.9bnn.a.n.a.
Q2 202316$3.9bnn.a.n.a.
Q3 202324$5.3bnn.a.n.a.
Q4 202322$5.1bn129
Q1 202420$5.6bn813
Q2 202417$4.6bn108
Q3 202412$3.6bn68
Q4 202413$3.2bn84
Q1 202513$3.6bn77
Q2 202511$4.6bn47
Q3 202516$5.5bn106
Q4 202519$3.8bn2315
Q1 202618$5.5bn1920
Q2 202618$4.6bn1817

Compare with…

Holders over time, buyers and sellers, and the managers holding both, side by side for up to four stocks.

MPC and GEV →MPC and XOM →MPC and CVX →Choose a stock to compare with MPC →

How much of the picture this is

A 13F is a manager’s long US-listed equity book at a quarter end, filed up to 45 days later. It shows no shorts, cash, bonds or performance, and it is never today’s portfolio. Large books are listed to their largest positions, so a manager missing from this table may still hold a small position below that line. These are 95 tracked managers, not the institutional market.

Which funds own MPC, latest filings →Back to the 13F Explorer →