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HELMS CHRISTOPHER A reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Christopher A. Helms received an equity grant of 1,285.155 common units of limited partner interests. The award was recorded at a price of $0.0000 per unit, indicating it was a grant rather than an open-market purchase. Following this transaction, Helms directly holds a total of 80,751.097 common units.
Breves Christine S reported acquisition or exercise transactions in this Form 4 filing.
MPLX LP director Christine S. Breves received an award of 218.103 Common Units (Limited Partner Interests) on February 17, 2026. The award was recorded at a price of $0.0000 per unit, indicating it was a grant rather than an open-market purchase. Following this grant, her directly owned holdings increased to 11,837.457 common units.
MPLX LP filed a current report to add key legal documents to its existing shelf registration on Form S-3 (Registration No. 333-271922). The filing attaches an Underwriting Agreement dated February 5, 2026, and two supplemental indentures dated February 12, 2026, each including a form of note. It also includes a legal opinion and related consent from Jones Day supporting the registration.
MPLX LP furnished an update on its recent performance by issuing a press release with financial results for the quarter and year ended December 31, 2025. The partnership attached this press release as an exhibit to the current report, making the details available to investors through that document.
MPLX LP director Maria A. Khoury filed an initial insider ownership report showing that she currently holds 0 common units of the partnership directly. This filing establishes her baseline beneficial ownership position as of 01/19/2026 and confirms there are no derivative securities, such as options or warrants, reported in her name.
The remarks note that she serves as a director of MPLX GP LLC, the general partner that manages MPLX LP through its directors and executive officers. An attorney-in-fact signed the filing on her behalf under a power of attorney.
MPLX LP reported a leadership change at its general partner. On December 18, 2025, the sole member of MPLX GP LLC’s Board of Directors elected Maria A. Khoury to serve on the General Partner’s Board, effective January 19, 2026. She is not expected to serve on any standing committees.
On the same effective date, Ms. Khoury will join Marathon Petroleum Corporation, which owns the General Partner and a majority of MPLX LP’s common units, as Executive Vice President and Chief Financial Officer. As an MPC employee, she will serve as a management director on the Board and will not receive separate compensation for her board service.
The company states there are no special arrangements or family relationships related to her election and no related-party transactions requiring disclosure. Ms. Khoury will succeed John J. Quaid, who will cease serving as a director on the effective date, while the Board size remains set at ten directors.
MPLX LP reported that director Ray N. Walker Jr. acquired additional equity in the partnership. On 11/14/2025, he acquired 1,711.572 common units (limited partner interests) at a reported price of $0 per unit, as shown in Table I of the Form 4. Following this transaction, he beneficially owns 1,711.572 common units in a direct capacity. The filing notes that he is a director of MPLX GP LLC, the general partner that manages the issuer.
MPLX LP reported an insider transaction on a Form 4 involving one director. On 11/14/2025, the reporting person acquired 1,590.069 Common Units (Limited Partner Interests) in MPLX. The units were reported at a price of $0, indicating they were not purchased for cash in the open market. Following this transaction, the director beneficially owns 87,685.127 MPLX common units, held directly. The filer is a director of MPLX GP LLC, the general partner that manages the issuer.
MPLX LP (MPLX) reported an insider equity transaction by a director on Form 4. On 11/14/2025, the reporting person acquired 1,037.37 MPLX common units (limited partner interests) in a transaction reported with a price of $0 per unit, indicating a grant or similar award rather than an open-market purchase. Following this transaction, the reporting person beneficially owns 52,313.197 MPLX common units directly and 700 MPLX common units indirectly through The Mike Stice Trust. The reporting person serves as a director of MPLX GP LLC, the general partner that manages MPLX LP.
MPLX LP (MPLX) director Frank M. Semple reported acquiring 1,132.302 common units on 11/14/2025, according to a Form 4 insider filing. The units were acquired at a reported price of $0, indicating an award or similar non-cash grant rather than an open-market purchase. Following this transaction, Semple directly holds 57,100.516 MPLX common units. He also reports additional indirect holdings of 333,337 units through the Frank M Semple Revocable Trust, 111,180 units through the Robin Y Semple 2012 Dynasty Trust, and 48,777 units through EK Holdings LLC. Semple serves as a director of MPLX GP LLC, the general partner that manages MPLX LP.