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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 2026
the date the book describes
Filed
27 Oct 2026
latest of these filings; the earliest 3 Aug 2026
Managers listing it
31
at least, of 95 tracked, among listed positions
Comparable managers
91
filed both Q1 2026 and Q2 2026; 17 listed it in both
Shares listed
18,913,076
combined, among listed positions
Reported value
$4.8bn
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: 18 buyers (opened or added shares) and 17 sellers (trimmed or exited), at least, among listed positions. Their net change in shares was -4,290,105.

Managers listing MPC in Q2 2026

Share of 13F value is the position’s reported value over everything the manager reported that quarter. The share change is against Q1 2026, and only where both filings list the position. A rise in value with no rise in shares is the price, not buying.

31 of 31 holders

ActionFiling
Fidelity (FMR LLC)5,419,718$1.4bn0.06%Added+508,63713 Aug 2026 (the filing on sec.gov)
Wellington Management Group LLP3,252,153$831m0.14%Trimmed-2,385,03414 Aug 2026 (the filing on sec.gov)
Invesco Ltd2,341,034$599munder 0.1%Trimmed-487,61114 Aug 2026 (the filing on sec.gov)
T. Rowe Price Associates Inc1,839,897$470munder 0.1%Added+556,80514 Aug 2026 (the filing on sec.gov)
Two Sigma Investments LP1,239,241$317m0.23%Trimmed-285,04514 Aug 2026 (the filing on sec.gov)
AQR Capital Management LLC828,334$212m0.07%Added+395,72814 Aug 2026 (the filing on sec.gov)
Squarepoint Ops LLC554,045$142m0.16%Added+184,59214 Aug 2026 (the filing on sec.gov)
Millennium Management LLC454,885$116munder 0.1%Added+22,94614 Aug 2026 (the filing on sec.gov)
Citadel Advisors LLC412,252$105munder 0.1%Added+210,1922 Sep 2026 (the filing on sec.gov)
Acadian Asset Management LLC375,026$96m0.11%Trimmed-155,56213 Aug 2026 (the filing on sec.gov)
AllianceBernstein LP370,777$91munder 0.1%Added+1,20514 Aug 2026 (the filing on sec.gov)
Bridgewater Associates LP349,224$89m0.37%Added+271,94114 Aug 2026 (the filing on sec.gov)
Man Group PLC293,849$75m0.12%Added+151,60114 Aug 2026 (the filing on sec.gov)
Harris Associates LP229,011$59m0.08%Trimmed-2,576,96114 Aug 2026 (the filing on sec.gov)
Arrowstreet Capital LP223,151$57munder 0.1%Trimmed-187,30813 Aug 2026 (the filing on sec.gov)
Marshall Wace LLP126,027$32munder 0.1%Trimmed-257,30913 Aug 2026 (the filing on sec.gov)
Holocene Advisors LP123,764$32m0.07%Trimmed-290,37014 Aug 2026 (the filing on sec.gov)
Susquehanna International Group LLP106,292$27munder 0.1%Added+9,13014 Aug 2026 (the filing on sec.gov)
Neuberger Berman Group LLC89,835$23munder 0.1%Added+3,41727 Oct 2026 (the filing on sec.gov)
Woodline Partners LP63,866$16m0.05%Added+5,86614 Aug 2026 (the filing on sec.gov)
Caxton Associates LLP50,141$13m0.24%Newnew14 Aug 2026 (the filing on sec.gov)
D. E. Shaw & Co.36,535$9.3munder 0.1%Added+4,16114 Aug 2026 (the filing on sec.gov)
Winton Group Ltd36,076$9.2m0.30%Newnew7 Aug 2026 (the filing on sec.gov)
Janus Henderson Group Ltd34,264$8.8munder 0.1%Added+1,17214 Aug 2026 (the filing on sec.gov)
Jane Street Group LLC22,062$5.6munder 0.1%Trimmed-6,41014 Aug 2026 (the filing on sec.gov)
Page 1 of 2

Largest increases and reductions, by shares

Q1 2026 to Q2 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 (3)

Exited (4)

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 →