MPLX MPLX LP

Ownership history in AVENIR CORP  ·  41 quarters on record

This page tracks every 13F SEC filing in which AVENIR CORP reported a position in MPLX LP (MPLX). Data includes quarterly share count, position size as % of portfolio, estimated market value, and end-of-quarter stock price — sourced directly from SEC EDGAR 13F filings.

Peak position
1.08% (2025 Q4)
Avg. % of fund
0.73%
First filed
2015 Q4
Last filed
2025 Q4
Quarters held
41
Quarter Action Shares Change Chg % % of Fund Mkt Value Price (EOQ)
2025 Q4 UNCHANGED 186,892 0% 1.08% $10.0M $52.34
2025 Q3 ADDED 186,892 +3,925 +2.1% 0.97% $9.3M $47.97
2025 Q2 REDUCED 182,967 -327 -0.2% 0.97% $9.4M $48.54
2025 Q1 UNCHANGED 183,294 0% 1.03% $9.8M $49.47
37 older quarters hidden  —  Sign in free or upgrade to Premium to see full history
% of Fund (quarterly)    MPLX price (monthly, adj. close)
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