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HENNESSY ADVISORS INC

Position in MPLX — Mplx LP

CIK 1145255 NOVATO, CA

Position in MPLX

as of Jun 30, 2026 · filed Jul 16, 2026
Position Value
$9,154,695
-$120,264 QoQ
Shares Held
162,519
0.0% QoQ
Ownership
0.016%
of shares outstanding
% of Portfolio
0.30%
of 13F equity value
Holder Rank
#90
of 630 holders
Holding Since
Mar 2022
18 quarters on record
Voting authority Sole 100% Shared 0% None 0%

Common Shares in MPLX Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas Midstream

Energy · as of Jun 30, 2026

HENNESSY ADVISORS INC holds $254,310,116 across 14 Oil & Gas Midstream names. MPLX ranks #10 (3.6% of the industry book) .

# Ticker Company Shares Value (USD) Open

All Filings in MPLX

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18 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $9,154,695 162,519
2026-03-31 $9,274,959 162,519
2025-12-31 $9,422,420 176,549
2025-09-30 $8,968,472 179,549
2025-06-30 $9,248,568 179,549
2025-03-31 $9,609,462 179,549
2024-12-31 $7,487,649 156,449
2024-09-30 $6,955,722 156,449
2024-06-30 $6,663,162 156,449
2024-03-31 $6,356,560 152,949
2023-12-31 $5,616,287 152,949
2023-09-30 $5,084,695 142,949
2023-06-30 $4,376,529 128,949
2023-03-31 $4,442,293 128,949
2022-12-31 $4,395,732 133,853
2022-09-30 $4,151,973 138,353
2022-06-30 $4,790,889 164,353
2022-03-31 $5,453,232 164,353