Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionLPL Financial LLC
Latest Disclosed Ownership424,342 shares
Latest Disclosed Value $ 103,615,831
LPL Financial LLC reports 3.23% increase in ownership of MPC / Marathon Petroleum Corporation

On May 6, 2026 - LPL Financial LLC filed a 13F-HR form disclosing ownership of 424,342 shares of Marathon Petroleum Corporation (MX:MPC) valued at $103,615,831 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 411,072 shares of Marathon Petroleum Corporation. This represents a change in shares of 3.23% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

Upgrade to unlock premium data and export to Excel .

Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-06 2026-03-31 13F MARATHON PETE COM 56585A102 424,342 13,270 3.23 103,616 54.99 0.0275
2026-02-11 2025-12-31 13F MARATHON PETE COM 56585A102 411,072 11,664 2.92 66,853 -13.16 0.0183
2025-11-12 2025-09-30 13F MARATHON PETE COM 56585A102 399,408 4,437 1.12 76,982 17.33 0.0224
2025-08-12 2025-06-30 13F MARATHON PETE COM 56585A102 394,971 -17,158 -4.16 65,609 9.27 0.0219
2025-05-07 2025-03-31 13F MARATHON PETE COM 56585A102 412,129 27,937 7.27 60,043 12.03 0.0233
2025-02-11 2024-12-31 13F MARATHON PETE COM 56585A102 384,192 -11,231 -2.84 53,595 -16.80 0.0218
2024-11-08 2024-09-30 13F MARATHON PETE COM 56585A102 395,423 -21,711 -5.20 64,418 -10.98 0.0287
2024-08-07 2024-06-30 13F MARATHON PETE COM 56585A102 417,134 6,818 1.66 72,365 -12.47 0.0360
2024-05-10 2024-03-31 13F MARATHON PETE COM 56585A102 410,316 33,165 8.79 82,679 47.76 0.0444
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 377,151 46,251 13.98 55,954 11.73 0.0339
2023-11-13 2023-09-30 13F MARATHON PETE COM 56585A102 330,900 -143,729 -30.28 50,078 -9.51 0.0351
2023-07-31 2023-06-30 13F MARATHON PETE COM 56585A102 474,629 1,183 0.25 55,342 -13.30 0.0395
2023-05-10 2023-03-31 13F MARATHON PETE COM 56585A102 473,446 3,308 0.70 63,835 16.66 0.0497
2023-02-07 2022-12-31 13F MARATHON PETE COM 56585A102 470,138 12,739 2.79 54,719 20.44 0.0469
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 457,399 150 0.03 45,433 20.86 0.0438
2022-08-12 2022-06-30 13F MARATHON PETE COM 56585A102 457,249 39,895 9.56 37,590 5.34 0.0357
2022-05-16 2022-03-31 13F MARATHON PETE COM 56585A102 417,354 18,550 4.65 35,684 39.83 0.0307
2022-02-14 2021-12-31 13F MARATHON PETE COM 56585A102 398,804 40,454 11.29 25,519 15.21 0.0214
2021-11-15 2021-09-30 13F MARATHON PETE COM 56585A102 358,350 35,629 11.04 22,150 13.60 0.0208
2021-08-13 2021-06-30 13F MARATHON PETE COM 56585A102 322,721 22,984 7.67 19,499 21.62 0.0197
2021-05-14 2021-03-31 13F MARATHON PETE COM 56585A102 299,737 -415 -0.14 16,033 29.15 0.0184
2021-02-12 2020-12-31 13F MARATHON PETE COM 56585A102 300,152 30,536 11.33 12,414 56.92 0.0161
2020-11-09 2020-09-30 13F MARATHON PETE COM 56585A102 269,616 8,814 3.38 7,911 -18.85 0.0124
2020-08-13 2020-06-30 13F MARATHON PETE COM 56585A102 260,802 58,500 28.92 9,749 104.04 0.0170
2020-05-14 2020-03-31 13F MARATHON PETE COM 56585A102 202,302 30,784 17.95 4,778 -53.76 0.0103
2020-02-14 2019-12-31 13F MARATHON PETE COM 56585A102 171,518 6,533 3.96 10,334 3.10 0.0188
2019-11-13 2019-09-30 13F MARATHON PETE COM 56585A102 164,985 2,080 1.28 10,023 10.11 0.0204
2019-08-09 2019-06-30 13F MARATHON PETE COM 56585A102 162,905 29,711 22.31 9,103 14.19 0.0194
2019-05-08 2019-03-31 13F MARATHON PETE COM 56585A102 133,194 15,985 13.64 7,972 15.25 0.0181
2019-02-07 2018-12-31 13F MARATHON PETE COM 56585A102 117,209 14,096 13.67 6,917 -16.12 0.0184
2018-11-14 2018-09-30 13F MARATHON PETE COM 56585A102 103,113 -6,552 -5.97 8,246 7.17 0.0198
2018-08-14 2018-06-30 13F MARATHON PETE COM 56585A102 109,665 21,969 25.05 7,694 20.01 0.0202
2018-05-15 2018-03-31 13F MARATHON PETE COM 56585A102 87,696 33,754 62.57 6,411 80.13 0.0176
2018-02-14 2017-12-31 13F MARATHON PETE COM 56585A102 53,942 1,324 2.52 3,559 20.60 0.0108
2017-11-14 2017-09-30 13F MARATHON PETE COM 56585A102 52,618 -909 -1.70 2,951 5.36 0.0104
2017-08-14 2017-06-30 13F MARATHON PETE COM 56585A102 53,527 -846 -1.56 2,801 3.13 0.0106
2017-05-15 2017-03-31 13F MARATHON PETROLEUM COM 56585A102 54,373 3,974 7.89 2,716 1.88 0.0185
2017-02-13 2016-12-31 13F MARATHON PETROLEUM COM 56585A102 50,399 4,466 9.72 2,666 40.32 0.0203
2016-11-16 2016-09-30 13F MARATHON PETROLEUM COM 56585A102 45,933 -1,194 -2.53 1,900 10.40 0.0181
2016-08-15 2016-06-30 13F MARATHON PETROLEUM COM 56585A102 47,127 -27,103 -36.51 1,721 -36.12 0.0145
2016-05-16 2016-03-31 13F MARATHON PETROLEUM COM 56585A102 74,230 7,093 10.56 2,694 -20.72 0.0075
2016-02-12 2015-12-31 13F MARATHON PETROLEUM COM 56585A102 67,137 36,663 120.31 3,398 121.08 0.0094
2015-11-13 2015-09-30 13F MARATHON PETROLEUM COM 56585A102 30,474 -551 -1.78 1,537 -9.43 0.0085
2015-08-14 2015-06-30 13F MARATHON PETROLEUM COM 56585A102 31,025 17,888 136.17 1,697 26.93 0.0086
2015-05-14 2015-03-31 13F MARATHON PETROLEUM COM 56585A102 13,137 -3,835 -22.60 1,337 -12.73 0.0068
2015-02-13 2014-12-31 13F MARATHON PETROLEUM COM 56585A102 16,972 3,451 25.52 1,532 37.40 0.0084
2014-11-10 2014-09-30 13F MARATHON PETROLEUM COM 56585A102 13,521 136 1.02 1,115 6.70 0.0066
2014-08-05 2014-06-30 13F/A-1 MARATHON PETROLEUM COM 56585A102 13,385 -1,466 -9.87 1,045 -19.18 0.0061
2014-08-05 2014-06-30 13F MARATHON PETROLEUM COM 56585A102 13,385 1,693
2014-05-12 2014-03-31 13F MARATHON PETROLEUM COM 56585A102 14,851 -3,602 -19.52 1,293 -23.63 0.0079
2014-02-13 2013-12-31 13F MARATHON PETROLEUM COM 56585A102 18,453 5,281 40.09 1,693 91.30 0.0106
2013-11-04 2013-09-30 13F MARATHON PETROLEUM COM 56585A102 13,172 2,070 18.65 885 12.17 0.0059
2013-08-15 2013-06-30 13F MARATHON PETROLEUM COM 56585A102 11,102 11,102 789 0.0057
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.