Form 4: MPLX Director Garry Peiffer Acquires Common Units

MPLX LP Director Garry L. Peiffer acquired 1,247.144 common units, increasing his direct beneficial ownership to 62,891.819 units.

Summary

• Garry L. Peiffer, a Director of MPLX GP LLC (the general partner of MPLX LP), acquired common units.
• The transaction involved the acquisition of 1,247.144 Common Units (Limited Partner Interests).
• The acquisition occurred on November 14, 2025, at a price of $0 per unit, indicating a grant or award.
• Following this transaction, Peiffer's direct beneficial ownership of Common Units increased to 62,891.819.
• Peiffer also holds 68,497 Common Units indirectly through a revocable trust.

Sentiment

Score: 6

Explanation: The acquisition of units by a director, while positive for alignment, is at a $0 price, indicating a grant rather than an open market purchase. This is a routine event and less indicative of a strong investment signal than a cash purchase.

Positives

• A Director of MPLX LP's general partner, Garry L. Peiffer, increased his direct beneficial ownership by acquiring 1,247.144 common units.
• The acquisition of units by a director, even at a $0 price (likely a grant), signals continued alignment of interests with shareholders and confidence in the company's future.

Future Outlook

NA

Industry Context

This insider transaction is specific to MPLX LP and does not directly provide broader industry trends or competitive analysis. However, insider activity can be a data point for investors assessing management's confidence within the energy midstream sector.

Related Party Transactions

• Garry L. Peiffer, a Director of MPLX GP LLC, acquired 1,247.144 common units of MPLX LP.
• Peiffer also holds 68,497 common units indirectly through the Garry L. Peiffer Revocable Trust.

Stakeholder Impact

• Shareholders: The increase in a director's beneficial ownership, even through a grant, reinforces management's alignment with shareholder interests, which can be viewed positively.

Key Dates

Keywords

MPLX, insider transaction, Form 4, beneficial ownership, director, common units, equity acquisition, limited partner interests