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DUFF & PHELPS INVESTMENT MANAGEMENT CO

Position in MPLX — Mplx LP

CIK 765443 CHICAGO, IL

Position in MPLX

as of Jun 30, 2026 · filed Aug 13, 2026
Position Value
$91,168,245
-$4,051,165 QoQ
Shares Held
1,618,467
-3.0% QoQ
Ownership
0.160%
of shares outstanding
% of Portfolio
0.87%
of 13F equity value
Holder Rank
#23
of 629 holders
Holding Since
Mar 2020
26 quarters on record
Voting authority Sole 98% Shared 2% None 0%

Common Shares in MPLX Over Time

Shares Held

Position Value (USD)

Position in Oil & Gas Midstream

Energy · as of Jun 30, 2026

DUFF & PHELPS INVESTMENT MANAGEMENT CO holds $1,082,554,379 across 16 Oil & Gas Midstream names. MPLX ranks #5 (8.4% of the industry book) .

# Ticker Company Shares Value (USD) Open
5 MPLX
Mplx LP
This page
1,618,467 $91,168,245

All Filings in MPLX

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26 filing rows on record
Report Date Value (USD) Shares
2026-06-30 $91,168,245 1,618,467
2026-03-31 $95,219,410 1,668,467
2025-12-31 $97,774,000 1,832,003
2025-09-30 $91,782,076 1,837,479
2025-06-30 $94,407,115 1,832,792
2025-03-31 $103,228,947 1,928,792
2024-12-31 $94,347,901 1,971,331
2024-09-30 $85,962,787 1,933,486
2024-06-30 $78,480,294 1,842,693
2024-03-31 $76,582,321 1,842,693
2023-12-31 $72,584,166 1,976,693
2023-09-30 $70,008,625 1,968,193
2023-06-30 $66,936,230 1,972,193
2023-03-31 $63,639,002 1,847,286
2022-12-31 $60,664,872 1,847,286
2022-09-30 $57,042,587 1,900,786
2022-06-30 $55,407,911 1,900,786
2022-03-31 $61,478,425 1,852,876
2021-12-31 $54,825,713 1,852,846
2021-09-30 $50,561,609 1,775,961
2021-06-30 $52,748,379 1,781,438
2021-03-31 $42,723,749 1,666,943
2020-12-31 $32,207,470 1,487,643
2020-09-30 $23,415,500 1,487,643
2020-06-30 $25,706,471 1,487,643
2020-03-31 $17,124,719 1,473,728