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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
30 Jun 2025
the date the book describes
Filed
14 Aug 2025
latest of these filings; the earliest 13 Aug 2025
Managers listing it
11
at least, of 95 tracked, among listed positions
Comparable managers
95
filed both Q1 2025 and Q2 2025; 8 listed it in both
Shares listed
27,757,740
combined, among listed positions
Reported value
$4.6bn
combined, at the quarter end

Among the 95 comparable managers: 4 buyers (opened or added shares) and 7 sellers (trimmed or exited), at least, among listed positions. Their net change in shares is not known from listed positions, because at least one of them lists it in only one of the two quarters.

Managers listing MPC in Q2 2025

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2025, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

11 of 11 holders

ActionFiling
Wellington Management Group LLP11,677,293$1.9bn0.35%Trimmed-146,88414 Aug 2025 (the filing on sec.gov)
Harris Associates LP4,128,430$686m1.12%Added+1,991,67014 Aug 2025 (the filing on sec.gov)
Fidelity (FMR LLC)3,352,144$557munder 0.1%Addedn.a.14 Aug 2025 (the filing on sec.gov)
T. Rowe Price Associates Inc3,332,970$554m0.06%Trimmed-342,39214 Aug 2025 (the filing on sec.gov)
Invesco Ltd2,566,445$426m0.07%Trimmed-779,02613 Aug 2025 (the filing on sec.gov)
Two Sigma Advisers LP784,600$130m0.27%Trimmed-107,70014 Aug 2025 (the filing on sec.gov)
Balyasny Asset Management LLC659,595$110m0.16%Addedn.a.14 Aug 2025 (the filing on sec.gov)
AQR Capital Management LLC534,543$89m0.07%Trimmed-463,68714 Aug 2025 (the filing on sec.gov)
Janus Henderson Group Ltd438,000$73munder 0.1%Trimmed-279,25914 Aug 2025 (the filing on sec.gov)
Two Sigma Investments LP157,227$26munder 0.1%Trimmed-201,56014 Aug 2025 (the filing on sec.gov)
Bridgewater Associates LP126,493$21m0.08%Newnew13 Aug 2025 (the filing on sec.gov)

Largest increases and reductions, by shares

Q1 2025 to Q2 2025, 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 (1)

Exited (0)

No exit shown by a manager’s own filing.

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 →