Breves Christine S 4

What Happened

• Christine S. Breves, a director of MPLX GP LLC (the general partner of MPLX LP), received an award of 2,246.989 shares on April 30, 2026. The award was reported at $0.00 per share (a standard equity retainer grant), so the filing lists $0 as the transaction amount. This was an issuance/award of equity as part of director compensation—not a market purchase or sale.

Key Details

• Transaction date: 2026-04-30; Filing date: 2026-05-04 (filed within the SEC’s 2-business-day window; timely).
• Price per share reported: $0.00; Total reported transaction value: $0.
• Shares received: 2,246.989.
• Shares owned after transaction: Not specified in this filing.
• Footnote: F1 — “Represents the reporting person's annual 2026 equity retainer award.”
• Remarks: Breves is a director of MPLX GP LLC, the issuer is managed by directors and executive officers of MPLX GP LLC.

Context

• This was a compensation award (annual equity retainer) commonly given to directors and does not represent an open-market buy or sell. Such awards are part of pay and may be subject to company-specific vesting or holding rules (not detailed in this filing). Awards convey less immediate trading signal than outright purchases or sales.