An officer and director of MPLX LP filed a Form 144 notice on November 10, 2026, disclosing a proposed sale of 3,512 common units with an aggregate market value of $199,270.88 through Fidelity Brokerage Services LLC on the New York Stock Exchange.

Key Highlights

  • Seller: Carl Kristopher Hagedorn, listed as both an officer and director of MPLX LP.
  • Units proposed for sale: 3,512 common units with an aggregate market value of $199,270.88.
  • Units outstanding: 1,013,027,039 common units as of the date of the notice.
  • Approximate sale date: November 10, 2026, via NYSE through Fidelity Brokerage Services LLC.
  • Acquisition history: 1,827 units acquired via restricted stock vesting from the issuer on January 1, 2019, and 1,685 units acquired via restricted stock vesting from the issuer on January 1, 2020, both as compensation.
  • Prior sales: No securities of the issuer were sold by Hagedorn during the past three months, according to the filing.

MPLX LP Officer Carl Hagedorn Discloses Proposed Unit Sale Under Rule 144

According to the Form 144 notice filed with the U.S. Securities and Exchange Commission, Carl Kristopher Hagedorn, identified as both an officer and a director of MPLX LP (NYSE:MPLX), intends to sell 3,512 common units of the partnership. The filing states the aggregate market value of the units to be sold is $199,270.88, with the approximate date of sale listed as November 10, 2026. The proposed sale is to be executed through Fidelity Brokerage Services LLC, located at 900 Salem Street, Smithfield, Rhode Island 02917, on the New York Stock Exchange.

The filing discloses that the securities proposed for sale were acquired through two separate restricted stock vesting transactions from the issuer as compensation. Specifically, 1,827 units vested on January 1, 2019, and 1,685 units vested on January 1, 2020. The filing reports nothing to disclose with respect to securities sold during the past three months by Hagedorn. As of the notice date, the filing states that 1,013,027,039 common units of MPLX LP were outstanding.

The notice was signed by Daniel Tucci as a duly authorized representative of Fidelity Brokerage Services LLC, acting as attorney-in-fact for Carl Hagedorn. The Form 144 was filed as a live submission under CIK 0001619644. MPLX LP is headquartered at 200 E. Hardin Street, Findlay, Ohio 45840, with SEC file number 001-35714.

What Was Disclosed

A Form 144 notice was filed on November 10, 2026, by or on behalf of Carl Kristopher Hagedorn, an officer and director of MPLX LP, disclosing the proposed sale of 3,512 common units valued at $199,270.88, originally acquired through restricted stock vesting in 2019 and 2020.