Security key
56585A102
- Security type / class
- Equity / Common Stock
- Total 13F shares
- 2,166,859
- Total 13F value
- $863,297,717
- Share change
- +355,957
- Put/Call ratio
- 6755%
- SEC-reported price per share
- $395.42
- Number of holders
- 337
- Value change
- +$144,232,390
- Number of buys
- 175
- Number of sells
- 100
- Shares outstanding
- 294,515,519
Holder snapshot
7 signals
Open additional details 1 more signal available
Security identity
Names, identifiers, and filing context for this profile.
1 source field
Report period
Q3 2026
Institutions
337
Top holders
10
MPC full security history
Ownership snapshot
Full 13F holder table
Marathon Petroleum Corp SEC filings
Marathon Petroleum Corp company facts
Broader feeds
Ownership snapshot
Top reported holders of MPC - Marathon Petroleum Corp - Common Stock (13F + 13D/G + 3/4/5)
Grouped by holder across the latest SEC ownership disclosures. Start with comparable ownership when available, then verify the linked 13F, 13D/G, or 3/4/5 evidence.
Comparable stake leader
VANGUARD CAPITAL MANAGEME...
Disclosed value leader
BlackRock, Inc.
Comparable rows
15/15
Latest evidence
28 Aug 2026
13D/G
13F
3/4/5
Lead comparable stake: 7.5%
13D/G row: VANGUARD CAPITAL MANAGEMENT LLC
Showing 1-6 of 15 holder rows.
Quick read
VANGUARD CAPITAL MANAGEMENT LLC leads the comparable SEC ownership view at 7.5%.
15 of 15 rows have a safely comparable ownership percentage. Use this as a filing-backed starting point, then open the detailed table for source links, reporting role, position value, share count, and filing date.
Open SEC evidence
Opens VANGUARD CAPITAL MANAGEMENT LLC's linked filing trail.
Comparable ownership
Top 5
VANGUARD CAPITAL MANAGEMENT LLC
7.5%
BlackRock, Inc.
6.8%
VANGUARD PORTFOLIO MANAGEMENT LLC
5.4%
Michael J. Hennigan
0.08%
Mannen Maryann T.
0.04%
Ownership % is shown only when SEC disclosures are safely comparable across share classes.
Detailed SEC evidence table Showing 1-6 of 15 holder rows
| Holder | Evidence | Ownership % | Position | 12M Net Δ | As of |
|---|---|---|---|---|---|
| VANGUARD CAPITAL MANAGEMENT LLC |
13D/G
13F
Vanguard Capital Management · Company
|
7.5%
|
$5,407,992,910
22,147,567 shares
|
$0 | 31 Mar 2026 |
| BlackRock, Inc. |
13F
13D/G
Company
|
6.8%
from 13D/G
|
$6,648,958,398
26,006,017 shares
|
— | 30 Jun 2026 |
| VANGUARD PORTFOLIO MANAGEMENT LLC |
13F
13D/G
Company · Vanguard Portfolio Management
|
5.4%
from 13D/G
|
$3,996,445,522
15,631,265 shares
|
— | 30 Jun 2026 |
| Michael J. Hennigan |
3/4/5
Executive Chairman, Director
|
0.08%
|
$41,036,964
220,902 shares
|
— | 12 Dec 2025 |
| Mannen Maryann T. |
3/4/5
Chairman, President & CEO, Director
|
0.04%
|
$28,363,774
110,939 shares
|
— | 03 Aug 2026 |
| Evan Bayh |
3/4/5
Director
|
0.02%
|
$17,825,356
73,001 shares
|
— | 30 Apr 2026 |
How to read this table
Rows are grouped by holder and ranked first by SEC-reported ownership % when it is safely comparable, then by disclosed holdings value. — indicates unavailable or non-comparable values; "mixed-class rows" means the latest filing spans non-comparable classes.
13F holder rows
Institutional holders as of Q3 2026
Investor-level positions for this CUSIP, loaded as an interactive table.
Institutions
337
Shares
2,166,859
Rows available
337
| Investor | Option | Weight % | Change % | SEC-reported value | * Price | Shares | Share Change | Activity | Report Period |
|---|
* SEC-reported price is the security price as of the portfolio date and can indicate the last known price at which the security was still held. The marker flags a reported price that did not pass the local price check.
Compare Q3 2026 vs Q2 2026 Across Filers
Q2 2026 holders
1,949
Q3 2026 holders
337
Holder diff
-1,612
| Investor | Q2 2026 Shares | Q3 2026 Shares | Share Diff | Share Chg % | Q2 2026 value | Q3 2026 value | Value change | Value Chg % |
|---|