Companies › MPC
MARATHON PETROLEUM CORP (MPC)
Institutional ownership, SEC filings and insider activity
Sector: Energy · SEC CIK 0001510295 · EDGAR filings · Updated 2026-06-29
MARATHON PETROLEUM CORP (MPC) has reported institutional ownership of 75.2%, with 1,873 institutional managers holding positions valued at $53.5B per the latest 13F reporting period. The company has 2 bond series in the registry.
Latest updates
- 2026-06-29 — Current report (8-K) filed
- 2026-06-25 — 11-K filed
- 2026-06-08 — Insider transaction reported (Form 4)
- 2026-06-04 — Notice of proposed sale filed (Form 144)
- 2026-05-15 — Insider transaction reported (Form 4)
- 2026-05-13 — Notice of proposed sale filed (Form 144)
- 2026-05-06 — S-3ASR filed
- 2026-05-05 — Quarterly report (10-Q) filed
Institutional ownership overview
According to SEC 13F filings tracked by Sightfile, MARATHON PETROLEUM CORP has 1,873 institutional holders and institutional ownership of 75.2%.
| # | Institution | Reported value | % of tracked total |
|---|---|---|---|
| 1 | BlackRock, Inc. | $5.96B | 11.1% |
| 2 | VANGUARD CAPITAL MANAGEMENT LLC | $4.68B | 8.7% |
| 3 | STATE STREET CORP | $4.65B | 8.7% |
| 4 | VANGUARD PORTFOLIO MANAGEMENT LLC | $3.83B | 7.1% |
| 5 | GEODE CAPITAL MANAGEMENT, LLC | $1.90B | 3.6% |
| 6 | MORGAN STANLEY | $1.48B | 2.8% |
| 7 | RAYMOND JAMES FINANCIAL INC | $1.41B | 2.6% |
| 8 | Boston Partners | $1.38B | 2.6% |
| 9 | WELLINGTON MANAGEMENT GROUP LLP | $1.38B | 2.6% |
| 10 | FMR LLC | $1.20B | 2.2% |
Full holder history and quarter-over-quarter changes are available inside the app.
Insider activity
Insiders reported 72 transactions (0 buys, 8 sells) across 22 reporting insiders, with a net reported value of −$5.15M.
Debt profile
2 active bond series in the registry, coupons ranging 5.15%–5.70%, maturities through 2035, built from the company's own prospectus filings.
Debt maturity schedule
Principal coming due by year for MARATHON PETROLEUM CORP, from the company's own SEC prospectus filings (424B) tracked by Sightfile.
| Year | Bond series maturing | Known principal due |
|---|---|---|
| 2026 | 2 | — |
| 2028 | 1 | — |
| 2030 | 1 | — |
| 2035 | 1 | — |
| 2041 | 1 | — |
| 2044 | 1 | — |
| 2045 | 1 | — |
| 2048 | 1 | — |
| 2054 | 1 | — |
Coupons, seniority and prospectus links for each series are available inside the app.
Fails-to-deliver
The SEC's fails-to-deliver file for 2026-06-29 reports 23,865,672 failed-to-deliver shares ($1.03M) for MPC — an official data point published by the SEC, shown as reported.
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See full history, cross-references and alerts on SightfileData sources: SEC EDGAR (filings, 13F, FTD), aggregated by Sightfile. Page updated 2026-06-29.