SEC Form 4 · accession 0001209191-16-140307
MPLX LP · MPLX
Statement of changes in beneficial ownership, as filed. Original on EDGAR ↗
Reporting owners
MARKWEST HYDROCARBON L.L.C.
Director · 10% Owner
Marathon Petroleum Corp
Director · 10% Owner
MPLX Logistics Holdings LLC
Director · 10% Owner
MPLX GP LLC
Director · 10% Owner
MPC Investment LLC
Director · 10% Owner
MPLX Holdings Inc.
Director · 10% Owner
Period of report
Sep 2, 2016
Accepted (ET)
Sep 6, 2016 · 8:20 pm EDT
Rule 10b5-1 plan
unknown — predates the checkbox
Issuer CIK
0001552000
Table I — non-derivative securities
| Security | Date | Code | Shares | Price | A/D | Owned after | D/I | Nature of ownership |
|---|---|---|---|---|---|---|---|---|
| Class A UnitsF1,F2,F3 | Sep 2, 2016 | D | 28,554,313 | — | D | 0 | I | See Footnotes |
Table II — derivative securities
No Table II lines on this filing.
Explanation of responses
- F1Pursuant to a Master Reorganization Agreement effective September 1, 2016 by and among MPLX Holdings Inc. ("Holdings"), MarkWest Energy Partners, L.P., MWE GP LLC, MPLX LP ("MPLX"), MPLX GP LLC ("the "General Partner"), MPC Investment LLC ("MPC Investment"), MPLX Logistics Holdings LLC ("Logistics Holdings") and MarkWest Hydrocarbon, L.L.C. ("Hydrocarbon"), all issued and outstanding Class A Units representing limited partner interests of MPLX were exchanged for newly issued common units representing limited partner interests of MPLX on a one-to-one conversion, eliminating all issued and outstanding Class A Units representing limited partner interests of MPLX.
- F2This Form 4 is filed jointly by Marathon Petroleum Corporation ("MPC"), MPC Investment, the General Partner, Logistics Holdings, Holdings and Hydrocarbon, with respect to the Issuer's Class A Units.
- F3The General Partner directly owns 7,193,467 general partner units, representing its 2% general partner interest in the Issuer. MPC Investment owns all of the membership interests or stock in the General Partner, Logistics Holdings and Holdings, and MPC owns all of the membership interests in MPC Investment. Accordingly, MPC, MPC Investment and Holdings may be deemed to have indirectly beneficially owned the securities of the Issuer directly held by the General Partner, Logistics Holdings and Hydrocarbon but disclaim beneficial ownership except to the extent of their respective pecuniary interests therein.