Who owns MPC?
Institutional ownership of Marathon Petroleum Corporation from Form 13F, Q2 2026
1,945 institutional managers reported holding Marathon Petroleum Corporation (MPC) in Form 13F filings for Q2 2026, with 219,137,722 shares worth $56.0B. The largest reported holder was BlackRock, Inc. Managers that filed both quarters cut a net 562,909 shares (-0.3%). 152 opened new positions and 92 sold out.
- Funds holding
- 1,945
- Value held
- $56.0B
- New / sold out
- 152 / 92
- Net shares, same filers
- -0.3%
Holdings as of June 30, 2026, the end of Q2 2026. Managers have 45 days after a quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
Largest holders of MPC
| Fund | Value | Share of 13F holdings | Shares | Move |
|---|---|---|---|---|
| BlackRock, Inc. | $6.6B | 11.9% | 26,006,017 | Added |
| Vanguard Capital Management LLC | $4.9B | 8.7% | 19,074,289 | Trimmed |
| State Street Corp | $4.7B | 8.4% | 18,471,905 | Trimmed |
| Vanguard Portfolio Management LLC | $4.0B | 7.1% | 15,631,265 | Trimmed |
| Geode Capital Management, LLC | $2.1B | 3.8% | 8,351,157 | Added |
| Morgan Stanley | $1.5B | 2.7% | 5,887,382 | Trimmed |
| Raymond James Financial Inc | $1.5B | 2.6% | 5,684,963 | Trimmed |
| FMR LLC | $1.4B | 2.5% | 5,419,718 | Added |
| Bank of New York Mellon Corp | $1.0B | 1.8% | 4,027,107 | Added |
| Boston Partners | $906M | 1.6% | 3,515,417 | Trimmed |
| Wellington Management Group LLP | $831M | 1.5% | 3,252,153 | Trimmed |
| Northern Trust Corp | $799M | 1.4% | 3,126,059 | Trimmed |
| Dimensional Fund Advisors LP | $781M | 1.4% | 3,056,082 | Trimmed |
| Goldman Sachs Group Inc | $738M | 1.3% | 2,884,591 | Added |
| JPMorgan Chase & Co | $709M | 1.2% | 2,736,206 | Trimmed |
| Charles Schwab Investment Management Inc | $670M | 1.2% | 2,622,511 | Trimmed |
| Norges Bank | $630M | 1.1% | 2,465,801 | New |
| Bank of America Corp | $622M | 1.1% | 2,432,168 | Trimmed |
| Invesco Ltd. | $599M | 1.1% | 2,341,034 | Trimmed |
| Amundi | $572M | 1.0% | 2,237,930 | Added |
| Ameriprise Financial Inc | $520M | 0.9% | 2,030,778 | Trimmed |
| UBS Group AG | $471M | 0.8% | 1,842,485 | Added |
| Price T Rowe Associates Inc | $470M | 0.8% | 1,839,897 | Added |
| Vanguard Fiduciary Trust Co | $424M | 0.8% | 1,659,223 | Trimmed |
| Capital Wealth Planning, LLC | $403M | 0.7% | 1,577,970 | Trimmed |
Share of 13F holdings is each fund's shares as a share of the 219,137,722 MPC shares all 13F filers reported, not of shares outstanding.
Biggest buyers in Q2 2026
- Norges Bank New+$630M
- BlackRock, Inc. Added+$412M
- Pacer Advisors, Inc. New+$320M
- Victory Capital Management Inc Added+$152M
- American Century Companies Inc Added+$144M
- Price T Rowe Associates Inc Added+$142M
- Geode Capital Management, LLC Added+$135M
- FMR LLC Added+$130M
- AQR Capital Management LLC Added+$101M
- BNP Paribas Financial Markets Added+$95.2M
Biggest sellers in Q2 2026
- Harris Associates L P Trimmed-$659M
- Wellington Management Group LLP Trimmed-$610M
- Boston Partners Trimmed-$550M
- JPMorgan Chase & Co Trimmed-$181M
- Canada Pension Plan Investment Board Trimmed-$156M
- State Street Corp Trimmed-$141M
- Invesco Ltd. Trimmed-$125M
- Holocene Advisors, LP Trimmed-$74.2M
- Two Sigma Investments, LP Trimmed-$72.9M
- Marshall Wace, LLP Trimmed-$65.8M
The change in shares since the quarter before, adjusted for stock splits and priced at the Q2 2026 value per share. Funds bought $3.9B and sold $4.1B; 657 added and 698 trimmed.
Schedule 13D and 13G filings on MPC
Owners of more than 5% must file within days, so these can be newer than the 13F data.
- 2026-04-30VANGUARD CAPITAL MANAGEMENT LLC SCHEDULE 13G filed by Marathon Petroleum CorporationSchedule 13G
Questions about MPC ownership
- Who owns MPC stock?
- 1,945 institutional investment managers reported MPC positions in their Form 13F filings for Q2 2026, holding 219,137,722 shares worth $56.0B in total. BlackRock, Inc. reported the largest position.
- Are funds buying or selling MPC?
- In Q2 2026, 152 managers opened new MPC positions, 657 added, 698 trimmed and 92 sold out. Managers that filed in both quarters sold a net 562,909 shares.
- How current is this MPC institutional ownership data?
- It covers holdings as of the end of Q2 2026. Managers have 45 days after the quarter ends to file Form 13F (by August 14, 2026 for Q2 2026), so positions may have changed since.
From the SEC's Form 13F data sets for Q2 2026: every 13F holdings report, matched to MPC by CUSIP. Options are left out. MPC news and filings · MPC insider trades · Top funds