Institutional Ownership
Marathon Petroleum Corp
CUSIP 56585AAS1COMQ1 2026
Institutional Holders
1
13F filers
Shares Held
1.1K
Aggregate institutional
Institutional Value
$270.6K
Q1 2026
Net New Holders
+1
1 new · 0 closed
Institutional Ownership Trend
Aggregate 13F value by quarter
Multi-quarter trend — upgrade to see history
UpgradePosition Activity
Q1 2026
New positions1
Increased0
Decreased0
Sold out0
Institutional Holders
1 funds hold this security · Q1 2026
| # | Fund | Shares | Value | Δ Shares | Activity |
|---|---|---|---|---|---|
| 1 | Ellenbecker Investment Group | 1.1K | $270.6K | +1.1K | New |