SCHEDULE 13G/A: Vanguard Group Maintains Significant 11.21% Stake in Marathon Petroleum Corp

The Vanguard Group has filed an amended Schedule 13G, reaffirming its substantial 11.21% beneficial ownership of Marathon Petroleum Corp's common stock.

Summary

• The Vanguard Group, a Pennsylvania-based investment adviser, filed an Amendment No. 13 to Schedule 13G regarding its beneficial ownership in Marathon Petroleum Corp.
• As of March 31, 2025, The Vanguard Group beneficially owns an aggregate of 34,941,144 shares of Marathon Petroleum Corp's common stock.
• This ownership represents 11.21% of the class of securities.
• Vanguard holds sole voting power over 0 shares, shared voting power over 405,256 shares, sole dispositive power over 33,404,985 shares, and shared dispositive power over 1,536,159 shares.
• The filing certifies that the securities were acquired and are held in the ordinary course of business and not for the purpose of changing or influencing the control of Marathon Petroleum Corp.

Sentiment

Score: 6

Explanation: The sentiment is neutral to slightly positive. While a 13G filing is routine, the continued significant stake by a major institutional investor like Vanguard can be interpreted as a stable, long-term investment, which is generally viewed favorably.

Positives

• The continued significant beneficial ownership by a major institutional investor like The Vanguard Group, representing 11.21% of the common stock, can be viewed as a vote of confidence in Marathon Petroleum Corp.
• The filing explicitly states that the shares are held in the ordinary course of business and not for the purpose of influencing control, indicating a passive investment strategy by Vanguard.

Future Outlook

This Schedule 13G filing does not contain any forward-looking statements or guidance from Marathon Petroleum Corp or The Vanguard Group regarding the issuer's future performance or strategic direction.

Industry Context

Marathon Petroleum Corp operates in the energy sector, primarily in refining, marketing, and transportation of petroleum products. The filing indicates a continued significant passive investment by The Vanguard Group, one of the world's largest investment management companies, in a major player within the U.S. energy industry.

Stakeholder Impact

• Shareholders of Marathon Petroleum Corp: The disclosure confirms a significant portion of the company's stock is held by a major institutional investor, potentially contributing to market stability.
• Clients of The Vanguard Group: The filing reflects Vanguard's ongoing investment strategy on behalf of its various funds and managed accounts.

Key Dates

Keywords

Marathon Petroleum Corp, Vanguard Group, Schedule 13G, beneficial ownership, common stock, institutional investor, SEC filing, energy sector, refining