Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionPeapack Gladstone Financial Corp
Latest Disclosed Ownership6,263 shares
Latest Disclosed Value $ 1,529
Peapack Gladstone Financial Corp reports 13.59% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - Peapack Gladstone Financial Corp filed a 13F-HR form disclosing ownership of 6,263 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,529 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 10, 2026 disclosing 7,248 shares of Marathon Petroleum Corporation. This represents a change in shares of -13.59% 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)
2026-05-15 2026-03-31 13F MARATHON PETE COM 56585A102 6,263 -985 -13.59 2 0.00 0.0196
2026-02-10 2025-12-31 13F MARATHON PETE COM 56585A102 7,248 139 1.96 1 0.00 0.0149
2025-11-14 2025-09-30 13F MARATHON PETE COM 56585A102 7,109 179 2.58 1 0.00 0.0178
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 6,930 74 1.08 1 0.0163
2025-05-12 2025-03-31 13F MARATHON PETE COM 56585A102 6,856 -1,560 -18.54 1 -100.00 0.0148
2025-02-13 2024-12-31 13F MARATHON PETE COM 56585A102 8,416 -12 -0.14 1 0.00 0.0170
2024-11-26 2024-09-30 13F MARATHON PETE COM 56585A102 8,428 -1,120 -11.73 1 0.00 0.0198
2024-08-13 2024-06-30 13F MARATHON PETE COM 56585A102 9,548 -462 -4.62 2 -50.00 0.0254
2024-05-10 2024-03-31 13F MARATHON PETE COM 56585A102 10,010 -1,209 -10.78 2 100.00 0.0315
2024-02-13 2023-12-31 13F MARATHON PETE COM 56585A102 11,219 -1,106 -8.97 2 0.00 0.0280
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 12,325 -473 -3.70 2 0.00 0.0345
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 12,798 -152 -1.17 1 0.00 0.0266
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 12,950 -2,900 -18.30 2 -99.95 0.0332
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 15,850 -199 -1.24 1,845 15.75 0.0363
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 16,049 1,455 9.97 1,594 32.83 0.0325
2022-08-12 2022-06-30 13F MARATHON PETE COM 56585A102 14,594 -918 -5.92 1,200 -9.50 0.0274
2022-05-16 2022-03-31 13F MARATHON PETE COM 56585A102 15,512 -865 -5.28 1,326 26.53 0.0260
2022-02-15 2021-12-31 13F MARATHON PETE COM 56585A102 16,377 -1,888 -10.34 1,048 -7.26 0.0198
2021-11-15 2021-09-30 13F MARATHON PETE COM 56585A102 18,265 -1,400 -7.12 1,130 -4.88 0.0234
2021-08-16 2021-06-30 13F MARATHON PETE COM 56585A102 19,665 -366 -1.83 1,188 10.82 0.0285
2021-05-14 2021-03-31 13F MARATHON PETE COM 56585A102 20,031 13,061 187.39 1,072 272.22 0.0277
2021-02-16 2020-12-31 13F MARATHON PETE COM 56585A102 6,970 -2,440 -25.93 288 3.97 0.0086
2020-11-16 2020-09-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 9,410 207 2.25 277 -19.48 0.0101
2020-08-14 2020-06-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 9,203 164 1.81 344 60.75 0.0136
2020-05-15 2020-03-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 9,039 -3,547 -28.18 214 -71.77 0.0101
2020-02-14 2019-12-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 12,586 344 2.81 758 2.02 0.0305
2019-11-13 2019-09-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 12,242 252 2.10 743 10.90 0.0319
2019-08-15 2019-06-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 11,990 300 2.57 670 -4.29 0.0290
2019-05-15 2019-03-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 11,690 125 1.08 700 2.64 0.0316
2019-02-14 2018-12-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 11,565 7,498 184.36 682 109.85 0.0349
2018-11-14 2018-09-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 4,067 597 17.20 325 33.74 0.0159
2018-08-09 2018-06-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 3,470 -1 -0.03 243 -3.95 0.0127
2018-05-10 2018-03-31 13F MARATHON PETROLEUM DOMESTIC COMMON STOCKS 56585A102 3,471 348 11.14 254 22.82 0.0137
2018-02-14 2017-12-31 13F MARATHON PETROLEUM DOMESTIC COMMON STOCKS 56585A102 3,123 3,123 206 0.0111
2016-05-10 2016-03-31 13F MARATHON PETROLEUM DOMESTIC COMMON STOCKS 56585A102 0 -3,892 -100.00 0 -100.00
2016-02-12 2015-12-31 13F MARATHON PETROLEUM DOMESTIC COMMON STOCKS 56585A102 3,892 3,892 202 0.0142
2015-11-12 2015-09-30 13F MARATHON PETROLEUM DOMESTIC COMMON STOCKS 56585A102 0 -3,892 -100.00 0 -100.00
2015-08-13 2015-06-30 13F MARATHON PETROLEUM DOMESTIC COMMON STOCKS 56585A102 3,892 1,794 85.51 204 -5.14 0.0143
2015-05-13 2015-03-31 13F MARATHON PETROLEUM DOMESTIC COMMON STOCKS 56585A102 2,098 2,098 -45.48 215 -99.92 0.0149
2013-11-14 2013-09-30 13F MARATHON PETROLEUM DOMESTIC COMMON STOCKS 56585A102 0 -3,848 -100.00 0 -100.00
2013-08-13 2013-06-30 13F MARATHON PETROLEUM DOMESTIC COMMON STOCKS 56585A102 3,848 3,848 273,439 0.0250
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.