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Marathon Petroleum Corp

MPC
Exchange
NYSE
Industry
Petroleum Refining
SEC CIK
0001510295

In the last 90 days, Marathon Petroleum Corp insiders filed 0 open-market purchases and 5 sales; 1,963 institutions reported holding it in 13F filings for Q2 2026, worth $56.0B in total; Harris Associates (Oakmark) is the only superinvestor holding it.

Holders of 5% or more of MPC

Holders whose latest Schedule 13D or 13G filing reports 5% or more of Marathon Petroleum Corp, largest stake first. The change is against the holder's previous filing.

Holders of 5% or more of MPC
HolderLatest formStakeChangeFirst filedLatest filingFiling
BlackRock, Inc.13G/A7.90%22.1M shares+1.10 ppfrom 6.80%Apr 23, 20252 filingsOct 27, 2026SEC
Vanguard Capital Management LLC13G7.52%22.1M sharesNewApr 30, 20261 filingApr 30, 2026SEC
Vanguard Portfolio Management LLC13G5.35%15.8M sharesNewApr 29, 20261 filingApr 29, 2026SEC

Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.

13D and 13G filings

22 Schedule 13D and 13G filings on Marathon Petroleum Corp, newest first, including old-format filings without a stake.

Schedule 13D and 13G filings on MPC
Filed (ET)FilerFormStakeChangeEvent dateFiling
Oct 27, 20265:25 PM ETBlackRock, Inc.13G/A7.90%22.1M shares+1.10 ppfrom 6.80%Sep 30, 2026SEC
Apr 30, 202611:39 AM ETVanguard Capital Management LLC13G7.52%22.1M sharesNewMar 31, 2026SEC
Apr 29, 20262:10 PM ETVanguard Portfolio Management LLC13G5.35%15.8M sharesNewMar 31, 2026SEC
Mar 27, 202610:31 AM ETVanguard Group Inc13G/A0.00%0 shares−12.65 ppfrom 12.65%Below 5%Mar 13, 2026SEC
Jul 29, 20251:55 PM ETVanguard Group Inc13G/A12.65%38.9M shares+1.44 ppfrom 11.21%Jun 30, 2025SEC
Apr 30, 202511:14 AM ETVanguard Group Inc13G/A11.21%34.9M shares–Mar 31, 2025SEC
Apr 23, 20258:57 PM ETBlackRock, Inc.13G/A6.80%21.1M shares–Mar 31, 2025SEC
Sep 10, 2024Vanguard Group Inc13G/AOld format–––SEC
Feb 13, 2024Vanguard Group Inc13G/AOld format–––SEC
Jan 30, 2024State Street Corp13G/AOld format–––SEC
Jan 25, 20244:59 PM ETBlackRock Inc.13GOld format–––SEC
Feb 9, 2023Vanguard Group Inc13G/AOld format–––SEC
Feb 3, 2023State Street Corp13G/AOld format–––SEC
Jan 24, 20231:56 PM ETBlackRock Inc.13G/AOld format–––SEC
Mar 9, 2022Vanguard Group Inc13G/AOld format–––SEC
Feb 11, 2022State Street Corp13G/AOld format–––SEC
Feb 9, 2022Vanguard Group Inc13G/AOld format–––SEC
Feb 3, 20224:41 PM ETBlackRock Inc.13G/AOld format–––SEC
Dec 9, 2021Vanguard Group Inc13G/AOld format–––SEC
Feb 10, 2021Vanguard Group Inc13G/AOld format–––SEC
Feb 9, 2021State Street Corp13GOld format–New–SEC
Jan 26, 20217:14 PM ETBlackRock Inc.13G/AOld format–––SEC

Form 144: proposed insider sales

36 notices from officers, directors and other affiliates planning to sell Marathon Petroleum Corp shares, newest first.

Form 144 notices for MPC
Filed (ET)SellerShares to sellMarket valuePlanned saleBrokerFiling
Aug 31, 20264:48 PM ETLyon Shawn MOfficer1.00K$375.7KAug 31, 2026Wells Fargo Clearing ServicesSEC
Aug 28, 20264:42 PM ETLyon Shawn MOfficer425$156.6KAug 28, 2026Wells Fargo Clearing ServicesSEC
Aug 27, 20269:58 AM ETBrzezinski Erin MOfficer570$206.8KAug 27, 2026Fidelity Brokerage Services LLCSEC
Aug 24, 20264:23 PM ETHagedorn Carl KristopherOfficer897$324.0KAug 24, 2026Fidelity Brokerage Services LLCSEC
Aug 20, 202610:35 AM ETLyon Shawn MOfficer2.50K$875.0KAug 13, 2026Wells Fargo Clearing ServicesSEC
Aug 17, 202610:52 AM ETBenson Molly ROfficer17.2K$6.17MAug 17, 202610b5-1Fidelity Brokerage Services LLCSEC
Aug 12, 20261:05 PM ETHenschen Michael A IIOfficer6.01K$2.05MAug 12, 2026Fidelity Brokerage Services LLCSEC
Jun 4, 20264:04 PM ETHenschen Michael A IIOfficer6.34K$1.70MJun 4, 2026Fidelity Brokerage Services LLCSEC
May 13, 20262:19 PM ETHessling Ricky D.Officer1.00K$250.0KMay 13, 2026Fidelity Brokerage Services LLCSEC
Mar 24, 202611:32 AM ETHennigan Michael JFormer director25.0K$6.06MMar 24, 2026Fidelity Brokerage Services LLCSEC
Mar 19, 20262:51 PM ETHennigan Michael JFormer director25.0K$5.98MMar 19, 2026Fidelity Brokerage Services LLCSEC
Mar 13, 20265:10 PM ETHessling Ricky D.Officer1.63K$371.0KMar 13, 2026Fidelity Brokerage Services LLCSEC
Mar 12, 202610:09 AM ETHessling Ricky D.Officer1.04K$237.6KMar 12, 2026Fidelity Brokerage Services LLCSEC
Mar 11, 20264:10 PM ETHessling Ricky D.Officer1.81K$406.8KMar 11, 2026Fidelity Brokerage Services LLCSEC
Mar 11, 20262:49 PM ETQuaid John JFormer officer5.00K$1.12MMar 11, 2026Fidelity Brokerage Services LLCSEC
Mar 6, 20262:28 PM ETHennigan Michael JFormer director25.0K$5.47MMar 6, 2026Fidelity Brokerage Services LLCSEC
Mar 2, 20263:18 PM ETHennigan Michael JFormer director25.0K$5.18MMar 2, 2026Fidelity Brokerage Services LLCSEC
Feb 26, 20262:42 PM ETHennigan Michael JFormer director25.0K$5.03MFeb 26, 2026Fidelity Brokerage Services LLCSEC
Feb 12, 20261:42 PM ETHenschen Michael A IIOfficer5.29K$1.07MFeb 12, 2026Fidelity Brokerage Services LLCSEC
Feb 6, 20263:27 PM ETHennigan Michael JFormer director25.0K$5.07MFeb 6, 2026Fidelity Brokerage Services LLCSEC
Aug 15, 20251:35 PM ETBenson Molly ROfficer10.9K$1.77MAug 15, 202510b5-1Fidelity Brokerage Services LLCSEC
Jul 3, 202511:00 AM ETRucker Kim K.W.Director7.39K$1.29MJul 3, 202510b5-1Fidelity Brokerage Services LLCSEC
Jun 3, 20252:32 PM ETWright Kelly DOfficer1.15K$186.8KJun 3, 2025Fidelity Brokerage Services LLCSEC
Mar 1, 20243:00 PM ETRucker Kim K.W.Director1.00K$170.3KMar 1, 202410b5-1Fidelity Brokerage Services LLCSEC
Feb 26, 20243:07 PM ETAydt Timothy JOfficer7.96K$1.38MFeb 26, 2024Fidelity Brokerage Services LLCSEC

Showing the latest 25. See the MPC notices from the last 12 months