Micheal G. Dunn was appointed Director of Mplx Lp, effective November 1, 2026. As of November 4, 2026, Mplx Lp has reported one leadership change filing to the SEC under Item 5.02 of Form 8-K, on October 29, 2026, naming 1 appointment (Form 8-K, October 29, 2026).
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Mplx Lp reported a change among its directors and officers to the SEC on Form 8-K, Item 5.02, on 2026-10-29. It names 1 person. Every row below is cited to the filing it comes from, and this page adds each new change as Mplx Lp files it.
Timeline
| Filed | In / out | Person | Role | Effective | Source |
|---|---|---|---|---|---|
| 2026-10-29 | In | Director | 2026-11-01 | 8-K, 2026-10-29 |
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Who leads Mplx Lp, as last reported?
For each role that changed in the filings below, the most recent change reported. A role that did not change in these filings is not listed.
- Director: Micheal G. Dunn, appointed, effective 2026-11-01 (filed 2026-10-29).
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Appointed: Micheal G. Dunn, Director, effective 2026-11-01
On October 27, 2026, the board of managers of MPC Investment LLC, the sole member of MPLX GP LLC, the general partner (the "General Partner"), of MPLX LP (the "Partnership"), increased the size of the board of directors of the General Partner (the "Board") to twelve members and elected Micheal G. Dunn and Bruce L. Niemeyer to serve on the Board as directors, effective November 1, 2026.
- Mr. Dunn and Mr. Niemeyer were each appointed to serve on the Board's Audit Committee and Conflicts Committee, effective November 1, 2026.
- As non-management directors, Mr. Dunn and Mr. Niemeyer will receive compensation in the same manner as the Board's other non-management directors.
- The terms of non-management director compensation were disclosed in the Partnership's Annual Report on Form 10-K for the year ended December 31, 2025, filed with the Securities and Exchange Commission on February 26, 2026.
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Where this comes from
A public company must file a current report on Form 8-K with the SEC within four business days when a director leaves or is elected, or when its chief executive, chief financial, chief accounting or chief operating officer, or another named executive, departs or is appointed. That disclosure goes under Item 5.02 of the report.
Every change on this page is taken from one of those filings and quoted in the company's own words, with a link to the filing, so it can be checked at the source. Where a filing names the person, the role and the date a change takes effect, they are shown beside the quote. Where it does not, the quote stands on its own. A filing states what changed; it rarely states why, and neither does this page.