Bruce L. Niemeyer filed an Initial Statement of Beneficial Ownership with the SEC on November 2, 2026, disclosing his status as a newly reporting director of MPLX LP, effective November 1, 2026.

Key Highlights

  • Reporting person: Bruce L. Niemeyer, identified in the filing as a Director of MPLX GP LLC, the general partner of MPLX LP (NYSE:MPLX).
  • Event date: The date of event requiring the statement is November 1, 2026, according to the filing.
  • Non-derivative holdings: Niemeyer reported direct beneficial ownership of 0 Common Units (Limited Partner Interests) in Table I of the filing.
  • Derivative holdings: No derivative securities were reported in Table II of the filing.
  • Signing authority: The form was signed by Molly R. Benson as Attorney-in-Fact for Bruce L. Niemeyer on November 2, 2026, pursuant to an Exhibit 24 Power of Attorney.
  • Filing type: One reporting person filed individually, as indicated in the filing.

Niemeyer's Initial Ownership Disclosure for MPLX LP

According to the filing, Bruce L. Niemeyer submitted a Form 3 Initial Statement of Beneficial Ownership in connection with his role as a Director of MPLX GP LLC. The filing notes that MPLX GP LLC is the general partner of the issuer, MPLX LP, and that "the Issuer is managed by the directors and executive officers of MPLX GP LLC." Niemeyer's address is listed as c/o MPLX LP, 200 E. Hardin Street, Findlay, Ohio 45840.

In Table I, the filing reports that Niemeyer directly holds 0 Common Units (Limited Partner Interests) in MPLX LP. Table II, which covers derivative securities such as puts, calls, warrants, options, and convertible securities, contains no entries, indicating no derivative holdings were disclosed. The filing was signed on November 2, 2026, by Molly R. Benson as Attorney-in-Fact for Niemeyer, pursuant to a Power of Attorney listed as Exhibit 24.

The filing was submitted pursuant to Section 16(a) of the Securities Exchange Act of 1934, which requires initial ownership statements from officers, directors, and certain beneficial owners of a registered company's equity securities. No amendment date is listed, indicating this is an original filing.

What Was Disclosed

Bruce L. Niemeyer filed an initial beneficial ownership statement as a Director of MPLX GP LLC, the general partner of MPLX LP, reporting zero Common Units held directly and no derivative securities, with an event date of November 1, 2026.