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MPLX LP Director's Dealing 2025

Aug 19, 2025

30009_dirs_2025-08-19_81db03ae-0a88-450b-97d1-2e609d54d7e9.zip

Director's Dealing

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SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: MPLX LP (MPLX)
CIK: 0001552000
Period of Report: 2025-08-15

Reporting Person: Peiffer Garry L. (N/A)

Non-Derivative Transactions

Date Security Code Shares Price A/D Holdings After Ownership
2025-08-15 Common Units (Limited Partner Interests) A 1157.128 Acquired 61644.675 Direct

Holdings (Non-Derivative)

Security Shares Ownership
Common Units (Limited Partner Interests) 68497 Indirect

Footnotes

F1: By Garry L. Peiffer Revocable Trust.