Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionEnvestnet Asset Management Inc
Latest Disclosed Ownership365,720 shares
Latest Disclosed Value $ 89,301,488
Envestnet Asset Management Inc reports 29.98% increase in ownership of MPC / Marathon Petroleum Corporation

On May 4, 2026 - Envestnet Asset Management Inc filed a 13F-HR form disclosing ownership of 365,720 shares of Marathon Petroleum Corporation (MX:MPC) valued at $89,301,488 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 281,365 shares of Marathon Petroleum Corporation. This represents a change in shares of 29.98% 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.

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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)
2026-05-04 2026-03-31 13F MARATHON PETE COM 56585A102 365,720 84,355 29.98 89,301 95.16 0.0239
2026-02-10 2025-12-31 13F MARATHON PETE COM 56585A102 281,365 -11,569 -3.95 45,758 -18.96 0.0136
2025-11-05 2025-09-30 13F MARATHON PETE COM 56585A102 292,934 -13,322 -4.35 56,460 10.98 0.0162
2025-08-01 2025-06-30 13F MARATHON PETE COM 56585A102 306,256 72,790 31.18 50,872 49.57 0.0148
2025-04-29 2025-03-31 13F MARATHON PETE COM 56585A102 233,466 -31,228 -11.80 34,014 -7.88 0.0110
2025-02-13 2024-12-31 13F MARATHON PETE COM 56585A102 264,694 -86,556 -24.64 36,925 -35.47 0.0119
2024-11-07 2024-09-30 13F MARATHON PETE COM 56585A102 351,250 -18,444 -4.99 57,222 -10.78 0.0185
2024-08-08 2024-06-30 13F MARATHON PETE COM 56585A102 369,694 -15,593 -4.05 64,135 -17.39 0.0223
2024-05-13 2024-03-31 13F MARATHON PETE COM 56585A102 385,287 24,626 6.83 77,635 45.09 0.0290
2024-02-13 2023-12-31 13F MARATHON PETE COM 56585A102 360,661 12,936 3.72 53,508 1.68 0.0221
2023-11-13 2023-09-30 13F MARATHON PETE COM 56585A102 347,725 13,858 4.15 52,625 35.18 0.0241
2023-08-04 2023-06-30 13F MARATHON PETE COM 56585A102 333,867 -1,714,752 -83.70 38,929 -23.90 0.0173
2023-05-11 2023-03-31 13F MARATHON PETE COM 56585A102 2,048,619 1,743,598 571.63 51,152 44.08 0.0246
2023-02-07 2022-12-31 13F MARATHON PETE COM 56585A102 305,021 -24,994 -7.57 35,501 8.30 0.0184
2022-11-10 2022-09-30 13F MARATHON PETE COM 56585A102 330,015 -12,931 -3.77 32,780 16.27 0.0187
2022-08-03 2022-06-30 13F MARATHON PETE COM 56585A102 342,946 10,542 3.17 28,194 -0.80 0.0158
2022-05-04 2022-03-31 13F MARATHON PETE COM 56585A102 332,404 -13,158 -3.81 28,420 28.52 0.0143
2022-02-04 2021-12-31 13F MARATHON PETE COM 56585A102 345,562 37,686 12.24 22,113 16.20 0.0109
2021-10-07 2021-09-30 13F MARATHON PETE COM 56585A102 307,876 14,615 4.98 19,030 7.40 0.0105
2021-08-04 2021-06-30 13F MARATHON PETE COM 56585A102 293,261 -48,768 -14.26 17,719 -3.15 0.0101
2021-05-04 2021-03-31 13F MARATHON PETE COM 56585A102 342,029 -11,653 -3.29 18,295 25.07 0.0119
2021-02-02 2020-12-31 13F MARATHON PETE COM 56585A102 353,682 -2,530 -0.71 14,628 39.97 0.0110
2020-10-09 2020-09-30 13F MARATHON PETE COM 56585A102 356,212 -18,247 -4.87 10,451 -25.33 0.0093
2020-07-08 2020-06-30 13F MARATHON PETE COM 56585A102 374,459 -141,934 -27.49 13,997 14.76 0.0137
2020-04-23 2020-03-31 13F MARATHON PETE COM 56585A102 516,393 -174,103 -25.21 12,197 -70.68 0.0145
2020-02-11 2019-12-31 13F MARATHON PETE COM 56585A102 690,496 361,276 109.74 41,602 108.01 0.0439
2019-10-17 2019-09-30 13F MARATHON PETE COM 56585A102 329,220 39,643 13.69 20,000 23.59 0.0219
2019-08-02 2019-06-30 13F MARATHON PETE COM 56585A102 289,577 10,609 3.80 16,182 -3.08 0.0204
2019-05-10 2019-03-31 13F MARATHON PETE COM 56585A102 278,968 -1,618 -0.58 16,696 0.84 0.0229
2019-02-12 2018-12-31 13F MARATHON PETE COM 56585A102 280,586 278,070 11,052.07 16,557 8,137.31 0.0256
2018-11-14 2018-09-30 13F MARATHON PETE COM 56585A102 2,516 -20,604 -89.12 201 -87.60 0.0003
2018-08-10 2018-06-30 13F MARATHON PETE COM 56585A102 23,120 156 0.68 1,621 -4.20 0.0037
2018-05-09 2018-03-31 13F MARATHON PETE COM 56585A102 22,964 -33,460 -59.30 1,692 -54.54 0.0048
2018-02-20 2017-12-31 13F MARATHON PETE COM 56585A102 56,424 -281 -0.50 3,722 17.01 0.0083
2017-11-13 2017-09-30 13F MARATHON PETE COM 56585A102 56,705 -30,591 -35.04 3,181 -30.35 0.0076
2017-08-14 2017-06-30 13F MARATHON PETE COM 56585A102 87,296 -5,379 -5.80 4,567 -2.48 0.0126
2017-05-09 2017-03-31 13F MARATHON PETE COM 56585A102 92,675 26,259 39.54 4,683 40.04 0.0150
2017-02-14 2016-12-31 13F MARATHON PETE COM 56585A102 66,416 7,286 12.32 3,344 39.33 0.0121
2016-11-14 2016-09-30 13F MARATHON PETE COM 56585A102 59,130 -31,075 -34.45 2,400 -29.91 0.0093
2016-08-15 2016-06-30 13F MARATHON PETE COM 56585A102 90,205 5,777 6.84 3,424 9.08 0.0137
2016-05-16 2016-03-31 13F MARATHON PETE COM 56585A102 84,428 -6,880 -7.53 3,139 -33.68 0.0135
2016-02-16 2015-12-31 13F MARATHON PETE COM 56585A102 91,308 -2,198 -2.35 4,733 9.26 0.0215
2015-11-13 2015-09-30 13F MARATHON PETE COM 56585A102 93,506 -5,996 -6.03 4,332 -16.77 0.0215
2015-08-13 2015-06-30 13F MARATHON PETE COM 56585A102 99,502 46,214 86.72 5,205 -4.60 0.0248
2015-05-15 2015-03-31 13F MARATHON PETE COM 56585A102 53,288 50,740 1,991.37 5,456 2,272.17 0.0282
2015-02-12 2014-12-31 13F Marathon Petroleum COM 56585A102 2,548 450 21.45 230 29.21 0.0023
2014-11-13 2014-09-30 13F Marathon Petroleum COM 56585A102 2,098 -7,337 -77.76 178 -75.85 0.0018
2014-08-14 2014-06-30 13F * MARATHON PETE COM 56585A102 9,435 -823 -8.02 737 -17.47 0.0077
2014-05-12 2014-03-31 13F Marathon Petroleum COM 56585A102 10,258 -116 -1.12 893 -6.20 0.0099
2014-02-12 2013-12-31 13F Marathon Petroleum COM 56585A102 10,374 -136 -1.29 952 40.83 0.0109
2013-11-12 2013-09-30 13F Marathon Petroleum COM 56585A102 10,510 -12,181 -53.68 676 -58.06 0.0082
2013-08-09 2013-06-30 13F Marathon Petroleum COM 56585A102 22,691 22,691 1,612 0.0209
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.