SURMA JOHN P 4

What Happened

• John P. Surma, a director of MPLX GP LLC (the general partner of MPLX LP), received an award of 2,579.543 common units/shares on April 30, 2026. The grant was recorded at $0.00 per share (no cash paid at grant).
• This was an equity retainer award (compensation), not an open-market purchase or sale—routine director compensation rather than a trading decision.

Key Details

• Transaction date: 2026-04-30; Transaction type: Award/Grant (code A).
• Shares granted: 2,579.543; reported acquisition price: $0.00.
• Footnote: F1 — represents the reporting person's annual 2026 equity retainer award.
• Shares owned after the transaction: not specified in the provided filing excerpt.
• Filing date: 2026-05-04 — filing appears timely (Form 4 due within two business days after the transaction date).

Context

• This grant is a routine director equity retainer (compensation) and should not be interpreted as a buy/sell signal. Awards are commonly used to align directors with unitholder interests and may vest over time per plan terms (vesting details not provided).
• The filer is a director of MPLX GP LLC, the general partner that manages the issuer; the filing reflects insider compensation within the partnership structure.