MPC Institutional Ownership
Who owns Marathon Petroleum Corp and what the big funds did with it last quarter, from every SEC 13F filing. 1,955 funds reported holding MPC at Jun 30, 2026, together owning 78.0% of the company.
- ●824 buying vs 803 selling
- ▼Held by funds -0.7 pts
- ▲Funds holding +54
- ▲Superinvestors: 4 added, 0 cut
- ●Put/call 0.83 to 0.82
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 1,955 | 1,901 | +2.8% |
| In funds' top 10 | 16 | 26 | −38.5% |
| 13F shares | 219M | 221M | −0.8% |
| Held by funds | 78.0% | 78.7% | −0.7 pts |
| New positions | 152 | 323 | −52.9% |
| Increased | 672 | 550 | +22.2% |
| Reduced | 708 | 670 | +5.7% |
| Sold out | 95 | 111 | −14.4% |
| Calls (shares) | 652K | 612K | +6.6% |
| Puts (shares) | 565K | 511K | +10.6% |
| Put/call ratio | 0.82 | 0.83 | −1.8% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in MPC
All superinvestors →
Who owns MPC
share of fund held shares- Index and passive funds47.3%
- Active managers and hedge funds29.3%
- Banks and brokers19.7%
- Pensions, insurers and other3.7%
The top 10 holders own 51.1% of all MPC shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
834 funds changed their position- Amanah Holdings TrustNew+378K sh
- Principal Financial Group IncTrimmed−269K sh
- Mackenzie Financial CorpAdded+131K sh
- BI Asset Management Fondsmaeglerselskab A/SAdded+130K sh
- Assenagon Asset Management S.A.Added+72K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 9.26% | 26M | $6.6B | +1.6M |
| 2 | Vanguard Capital Management LLC | 6.79% | 19.1M | $4.9B | −96K |
| 3 | State Street Corp | 6.58% | 18.5M | $4.7B | −553K |
| 4 | Vanguard Portfolio Management LLC | 5.57% | 15.6M | $4B | −41K |
| 5 | Geode Capital Management, LLC | 2.97% | 8.4M | $2.1B | +530K |
| 6 | Morgan Stanley | 2.10% | 5.9M | $1.5B | −186K |
| 7 | Raymond James Financial Inc | 2.02% | 5.7M | $1.5B | −89K |
| 8 | Fmr LLC | 1.93% | 5.4M | $1.4B | +509K |
| 9 | Bank of New York Mellon Corp | 1.43% | 4M | $1B | +74K |
| 10 | Boston Partners | 1.25% | 3.5M | $906M | −2.1M |
- Norges Bank+2.5M sh+$630M
- BlackRock, Inc.+1.6M sh+$412M
- Victory Capital Management Inc+594K sh+$152M
- American Century Companies Inc+562K sh+$144M
- Price T Rowe Associates Inc /md/+557K sh+$142M
- Geode Capital Management, LLC+530K sh+$135M
- Fmr LLC+509K sh+$130M
- AQR Capital Management LLC+396K sh+$101M
- Harris Associates L P−2.6M sh−$659M
- Wellington Management Group LLP−2.4M sh−$610M
- Boston Partners−2.1M sh−$550M
- Jpmorgan Chase & Co−700K sh−$181M
- Canada Pension Plan Investment Board−610K sh−$156M
- State Street Corp−553K sh−$141M
- Invesco Ltd.−488K sh−$125M
- Holocene Advisors, LP−290K sh−$74.2M
MPC institutional ownership FAQ
Who owns the most MPC stock?
In Q2 2026 13F filings the largest holder of MPC was BlackRock, Inc., followed by Vanguard Capital Management LLC and State Street Corp. Index fund managers are usually the biggest holders of large companies.
What percentage of MPC is owned by institutions?
Funds that file 13F reports held 78.0% of MPC's shares at Jun 30, 2026, compared with 78.7% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying MPC?
In Q2 2026, 824 funds bought MPC (152 of them new positions) and 803 sold (95 sold out completely). Among well known investors, 4 added and 0 cut. Our fund sentiment for MPC is neutral.
What is MPC's institutional put/call ratio?
Funds reported $145M of MPC puts against $176M of calls, a put/call ratio of 0.82 (0.83 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this MPC ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.