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GAMCO INVESTORS, INC. ET AL

Position in MPC — Marathon Petroleum Corp

CIK 807249 GREENWICH, CT

Position in MPC

as of Jun 30, 2026 · filed Aug 12, 2026
Position Value
$1,778,951
+$76,040 QoQ
Shares Held
6,958
-0.2% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#673
of 1,926 holders
Holding Since
Mar 2020
24 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MPC Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas Refining & Marketing

Energy · as of Jun 30, 2026

GAMCO INVESTORS, INC. ET AL holds $4,998,812 across 4 Oil & Gas Refining & Marketing names. MPC ranks #2 (35.6% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 MPC
Marathon Petroleum Corp
This page
6,958 $1,778,951

All Filings in MPC

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24 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $1,778,951 6,958
2026-03-31 $1,702,911 6,974
2025-12-31 $997,897 6,136
2025-09-30 $1,429,745 7,418
2025-06-30 $1,332,202 8,020
2025-03-31 $232,375 1,595
2024-12-31 $244,822 1,755
2024-09-30 $316,208 1,941
2024-06-30 $321,458 1,853
2024-03-31 $294,794 1,463
2023-12-31 $223,726 1,508
2023-09-30 $230,036 1,520
2023-06-30 $217,459 1,865
2023-03-31 $230,559 1,710
2022-12-31 $202,518 1,740
2022-03-31 $202,207 2,365
2021-12-31 $202,848 3,170
2021-09-30 $318,012 5,145
2021-06-30 $310,860 5,145
2021-03-31 $276,810 5,175
2020-12-31 $218,174 5,275
2020-09-30 $400,344 13,645
2020-06-30 $593,332 15,873
2020-03-31 $464,321 19,658