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S.A. Mason LLC

Position in MPC — Marathon Petroleum Corp

CIK 1800911 HOLLAND, MI

Position in MPC

as of Jun 30, 2026 · filed Jul 31, 2026
Position Value
$368,676
+$16,569 QoQ
Shares Held
1,442
0.0% QoQ
Ownership
0.001%
of shares outstanding
% of Portfolio
0.20%
of 13F equity value
Holder Rank
#1,277
of 1,924 holders
Holding Since
Mar 2020
10 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

S.A. Mason LLC holds $1,208,219 across 3 Oil & Gas Refining & Marketing names. MPC ranks #2 (30.5% of the industry book) .

# Ticker Company Shares Value (USD) Open
2 MPC
Marathon Petroleum Corp
This page
1,442 $368,676

All Filings in MPC

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10 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $368,676 1,442
2026-03-31 $352,107 1,442
2025-12-31 $184,910 1,137
2025-09-30 $180,211 935
2024-03-31 $107,802 535
2023-12-31 $79,372 535
2023-09-30 $80,966 535
2023-06-30 $62,381 535
2023-03-31 $72,134 535
2020-03-31 $7,912 335