Avenir Corp

SEC CIK: 0001033475
Latest filing: Aug 13, 2026

SEC filings (opens in a new tab)

MPLX holding history

MPLX LP in every 13F filed by Avenir Corp, including the quarters it was sold out or no filing was made. Changes compare share counts with the previous calendar quarter.

MPLX overview All 13F holders of MPLX Full Q2 2026 holdings

Shares (Q2 2026): 185,366
Value: $10.4M
% of portfolio: 1.3%
Quarters held: 22; Since Q1 2021

Holdings of MPLX by Avenir Corp, by quarter
Quarter	Shares	Value	% of portfolio	Share change	Action	All holders
Q2 2026	185,366	$10.4M	1.3%	−1,526−0.8%	Reduced	Holders
Q1 2026	186,892	$10.7M	1.3%	00.0%	Unchanged	Holders
Q4 2025	186,892	$9.97M	1.1%	00.0%	Unchanged	Holders
Q3 2025	186,892	$9.34M	1.0%	+3,925+2.1%	Added	Holders
Q2 2025	182,967	$9.42M	1.0%	−327−0.2%	Reduced	Holders
Q1 2025	183,294	$9.81M	1.0%	00.0%	Unchanged	Holders
Q4 2024	183,294	$8.77M	0.9%	−872−0.5%	Reduced	Holders
Q3 2024	184,166	$8.19M	0.8%	−5,381−2.8%	Reduced	Holders
Q2 2024	189,547	$8.07M	0.8%	−4,686−2.4%	Reduced	Holders
Q1 2024	194,233	$8.07M	0.7%	−2,834−1.4%	Reduced	Holders
Q4 2023	197,067	$7.24M	0.6%	−3,597−1.8%	Reduced	Holders
Q3 2023	200,664	$7.14M	0.7%	00.0%	Unchanged	Holders
Q2 2023	200,664	$6.81M	0.6%	−23,980−10.7%	Reduced	Holders
Q1 2023	224,644	$7.74M	0.7%	−1,200−0.5%	Reduced	Holders
Q4 2022	225,844	$7.42M	0.7%	00.0%	Unchanged	Holders
Q3 2022	225,844	$6.78M	0.7%	−1,008−0.4%	Reduced	Holders
Q2 2022	226,852	$6.61M	0.6%	00.0%	Unchanged	Holders
Q1 2022	226,852	$7.53M	0.6%	−3,270−1.4%	Reduced	Holders
Q4 2021	230,122	$6.81M	0.5%	+2,625+1.2%	Added	Holders
Q3 2021	227,497	$6.48M	0.5%	−1,300−0.6%	Reduced	Holders
Q2 2021	228,797	$6.78M	0.5%	−1,335−0.6%	Reduced	Holders
Q1 2021	230,132	$5.90M	0.5%	–	–	Holders

Livermore's 13F data starts with Q1 2021, so Q1 2021 has no change from the previous quarter.