Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionHBK Sorce Advisory LLC
Latest Disclosed Ownership4,277 shares
Latest Disclosed Value $ 1,047,280
HBK Sorce Advisory LLC reports 2.44% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 11, 2026 - HBK Sorce Advisory LLC filed a 13F-HR form disclosing ownership of 4,277 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,047,280 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 4,384 shares of Marathon Petroleum Corporation. This represents a change in shares of -2.44% 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)
2026-05-11 2026-03-31 13F MARATHON PETE COM 56585A102 4,277 -107 -2.44 1,047 17.77 0.0208
2026-02-09 2025-12-31 13F MARATHON PETE COM 56585A102 4,384 390 9.76 890 21.12 0.0204
2025-10-16 2025-09-30 13F/A-1 MARATHON PETE COM 56585A102 3,994 -189 -4.52 734 5.76 0.0184
2025-10-14 2025-09-30 13F MARATHON PETE COM 56585A102 6,146 1,963 1,160 0.0251
2025-08-04 2025-06-30 13F MARATHON PETE COM 56585A102 4,183 439 11.73 695 27.34 0.0188
2025-04-23 2025-03-31 13F MARATHON PETE COM 56585A102 3,744 218 6.18 545 11.00 0.0160
2025-02-10 2024-12-31 13F MARATHON PETE COM 56585A102 3,526 384 12.22 492 -3.91 0.0148
2024-11-12 2024-09-30 13F MARATHON PETE COM 56585A102 3,142 16 0.51 512 -5.72 0.0156
2024-08-08 2024-06-30 13F MARATHON PETE COM 56585A102 3,126 435 16.16 542 0.00 0.0189
2024-05-09 2024-03-31 13F MARATHON PETE COM 56585A102 2,691 -585 -17.86 542 11.52 0.0191
2024-01-25 2023-12-31 13F MARATHON PETE COM 56585A102 3,276 254 8.41 486 6.35 0.0188
2023-11-06 2023-09-30 13F MARATHON PETE COM 56585A102 3,022 -268 -8.15 457 19.32 0.0201
2023-08-04 2023-06-30 13F MARATHON PETE COM 56585A102 3,290 6 0.18 384 -13.35 0.0162
2023-08-15 2023-03-31 13F/A-1 MARATHON PETE COM 56585A102 3,284 -3,026 -47.96 443 0.0201
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 6,293 -17 1 0.0194
2023-02-09 2022-12-31 13F MARATHON PETE COM 56585A102 6,310 2,930 86.69 1 -100.00 0.0197
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 3,380 -121 -3.46 336 16.67 0.0225
2022-08-15 2022-06-30 13F MARATHON PETE COM 56585A102 3,501 -1,632 -31.79 288 -34.40 0.0212
2022-05-13 2022-03-31 13F MARATHON PETE COM 56585A102 5,133 -2,076 -28.80 439 -4.77 0.0240
2022-02-15 2021-12-31 13F MARATHON PETE COM 56585A102 7,209 294 4.25 461 7.96 0.0233
2021-11-15 2021-09-30 13F MARATHON PETE COM 56585A102 6,915 920 15.35 427 17.96 0.0235
2021-08-12 2021-06-30 13F MARATHON PETE COM 56585A102 5,995 1,237 26.00 362 41.96 0.0200
2021-05-14 2021-03-31 13F MARATHON PETE COM 56585A102 4,758 4,758 255 0.0152
2019-08-15 2019-06-30 13F/A-1 MARATHON PETE COM 56585A102 0 -3,521 -100.00 0 -100.00
2019-05-13 2019-03-31 13F MARATHON PETE COM 56585A102 3,521 3,521 211 0.0211
2019-02-14 2018-12-31 13F MARATHON PETE COM 56585A102 0 -3,585 -100.00 0 -100.00
2018-11-15 2018-09-30 13F MARATHON PETE COM 56585A102 3,585 -438 -10.89 287 1.77 0.0324
2018-08-10 2018-06-30 13F MARATHON PETE COM 56585A102 4,023 319 8.61 282 4.06 0.0325
2018-05-15 2018-03-31 13F MARATHON PETE COM 56585A102 3,704 3,704 271 0.0340
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.