Mplx LP
At a glance
Mplx LP reported 2025 revenue of $9.73B, up 5.8% from $9.19B in 2024. Over 4 years since 2021 ($8.02B), that is growth of about 4.9% a year. Operating margin was 61.1%, up from 49.8% in 2021. 2025 was the highest revenue year in this period.
Mplx LP filed 11 current reports (Form 8-K) in the last 12 months, most often for results of operations (5), officer or director change (4), other events (2) and material agreement (1). The latest officer or director change was reported on Oct 29, 2026. It reported a material agreement or a completed acquisition or disposal 1 time.
1 of the 20 investors tracked here held Mplx LP at the last quarter end, worth $28.3M combined. It is the largest weight for Appaloosa (0.4% of its portfolio).
Annual results
Fiscal year ends Dec 31
Tracked investors holding (13F)
Weight is the share of each investor's portfolio, as of the quarter end.
Current reports (8-K, last 12 months)
Insider open-market trades (last 12 months)
No open-market trades in the last 12 months.
Source: SEC EDGAR. How figures are combined