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GRANDFIELD & DODD, LLC

Position in MPC — Marathon Petroleum Corp

CIK 1308016 NEW YORK, NY

Position in MPC

as of Jun 30, 2026 · filed Aug 7, 2026
Position Value
$304,247
+$13,673 QoQ
Shares Held
1,190
0.0% QoQ
Ownership
0.000%
of shares outstanding
% of Portfolio
0.02%
of 13F equity value
Holder Rank
#1,367
of 1,924 holders
Holding Since
Mar 2024
5 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

GRANDFIELD & DODD, LLC holds $304,247 across 1 Oil & Gas Refining & Marketing name. MPC ranks #1 (100.0% of the industry book) .

# Ticker Company Shares Value (USD) Open
1 MPC
Marathon Petroleum Corp
This page
1,190 $304,247

All Filings in MPC

Export CSV
5 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $304,247 1,190
2026-03-31 $290,574 1,190
2025-09-30 $228,975 1,188
2024-06-30 $206,094 1,188
2024-03-31 $243,009 1,206