MPLX
Partnership Unit

Mplx LP

Common units representing limited partner interests As of Jun 30, 2026 CUSIP 55336V100
Institutional Holders
639
Total Held Value
$11.04B
Total Exact Shares
195.99M
Largest Holder
Alps Advisors
28.60M shares • $1.61B
Reported Holders639
Filings dated Jun 30, 2026 unless marked
# Trend (4Q)
1 Alps Advisors $1.61B 7.6% +5.7% 28.60M Jun 30, 2026
2 Invesco $1.03B 0.1% — 18.27M — Jun 30, 2026
3 Blackstone $729.9M 1.9% -15.6% 12.96M Jun 30, 2026
4 Goldman Sachs Group $638.2M 0.1% -9.4% 11.33M Jun 30, 2026
5 Tortoise Capital Advisors $591.5M 6.0% -20.8% 10.50M Jun 30, 2026
6 Mirae Asset Global Etfs Holdings $451.3M 0.5% +9.5% 8.01M Jun 30, 2026
7 Kayne Anderson Capital Advisors $330.3M 6.5% -14.1% 5.86M Jun 30, 2026
8 Energy Income Partners $303.1M 4.8% +4.3% 5.38M Jun 30, 2026
9 Morgan Stanley $297.2M <0.1% +6.3% 5.28M Jun 30, 2026
10 UBS Group $296.3M <0.1% +0.5% 5.26M Jun 30, 2026
11 Chickasaw Capital Management
Filing dated Sep 30, 2026
 $293.6M 10.5% +0.0% 5.21M Sep 30, 2026
12 Fidelity (FMR) $220.9M <0.1% +16.7% 3.92M Jun 30, 2026
13 JPMorgan Chase $192.7M <0.1% -17.1% 3.43M Jun 30, 2026
14 Brave Warrior Advisors $179.2M 3.9% -2.2% 3.18M Jun 30, 2026
15 CIBC Bancorp USA $168.3M 0.2% +13.1% 2.99M Jun 30, 2026
16 Bank of Montreal $143.6M <0.1% -36.7% 2.55M Jun 30, 2026
17 Clearbridge Investments $132.0M 0.1% — 2.34M Jun 30, 2026
18 Miller Howard Investments
Filing dated Sep 30, 2026
 $130.5M 3.5% -0.4% 2.32M Sep 30, 2026
19 Westwood Holdings Group $119.1M 0.9% -5.5% 2.11M Jun 30, 2026
20 Bank of America $116.6M <0.1% -19.5% 2.07M Jun 30, 2026
Exited in Latest Filing51
# Fund Prior Value Prior % of Fund Change Prior Shares Trend (4Q) Exit Report
Each exit is an immediately prior-filing position absent from that manager's latest published filing. Prior values are shown for context and are not included in current totals.