MPLX

MPLX LP
USCUSIP 55336V100
Institutional Owners
191
+18 QoQ
13F Value Held
$3.0B
Insider Net · 180d
$0
0↑ 0↓
Recent Filings
0
Smart-money sentimentMixed
BearishBullish
13F funds (latest Q)54 adding · 35 trimming
Insider net (180d)+$0
Price history not yet available for MPLX.

Top institutional holders

191 13F filers
#FundPosition valueSharesLast moveAs of
1ALPS ADVISORS INC
$1.5B
27.07MAddedQ1 2026
2Brave Warrior Advisors, LLC
$185.7M
3.25MReducedQ1 2026
3MILLER HOWARD INVESTMENTS INC /NY
$127.8M
2.24MReducedQ1 2026
4WESTWOOD HOLDINGS GROUP INC
$127.7M
2.24MAddedQ1 2026
5EAGLE GLOBAL ADVISORS LLC
$103.0M
1.81MReducedQ1 2026
6CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT
$100.5M
1.88MNewQ4 2025
7AlphaCore Capital LLC
$92.2M
1.62MAddedQ1 2026
8Energy Income Partners, LLC
$63.3M
1.11MReducedQ1 2026
9PEAK6 LLC
$54.6M
956.6KAddedQ1 2026
10Americana Partners, LLC
$43.7M
765.5KAddedQ1 2026
11REAVES W H & CO INC
$38.3M
670.5KHeldQ1 2026
12U.S. Capital Wealth Advisors, LLC
$33.0M
577.6KReducedQ1 2026
13Appaloosa LP
$28.7M
502.5KReducedQ1 2026
14Chicago Partners Investment Group LLC
$27.1M
486.7KNewQ1 2026
15Epoch Investment Partners, Inc.
$24.5M
429.6KAddedQ1 2026
16EXCHANGE TRADED CONCEPTS, LLC
$23.0M
403.9KReducedQ1 2026
17CITADEL ADVISORS LLC
$22.5M
394.6KAddedQ1 2026
18GOLDENTREE ASSET MANAGEMENT LP
$19.7M
344.7KReducedQ1 2026
19Maryland State Retirement & Pension System
$19.4M
339.1KReducedQ1 2026
20NEOS Investment Management LLC
$19.1M
334.0KAddedQ1 2026
21Texas Yale Capital Corp.
$18.1M
317.1KAddedQ1 2026
22Catalyst Capital Advisors LLC
$15.8M
277.6KAddedQ1 2026
23TECTONIC ADVISORS LLC
$14.9M
260.5KAddedQ1 2026
24Waverly Advisors, LLC
$13.7M
240.9KReducedQ1 2026
25&PARTNERS
$13.2M
230.5KAddedQ1 2026

Fund activity — latest quarter

Opened (NEW)
13
funds
Added
41
funds
Reduced
35
funds
Exited
0
funds

Insider activity (Form 4)

No Form 4 insider transactions on file yet.

Institutional ownership over time

181 funds+180 since Q2 2022
091181Q2 2022Q1 2023Q4 2023Q3 2024Q2 2025Q1 2026
funds holding aggregate valuelatest $3.2B

Funds that own MPLX also own

CompanyCo-held byCombined value
Microsoft CorpMSFT182 funds$38.5B
Exxon Mobil CorpXOM182 funds$9.4B
Nvidia CorpNVDA181 funds$50.3B
GOOGLE INCGOOGL181 funds$26.0B
LPHABET INCGOOG181 funds$18.1B
Jpmorgan Chase & CoJPM181 funds$16.8B
Meta Platforms Inc Cl AMETA181 funds$16.6B
Johnson & JohnsonJNJ181 funds$10.0B
Chevron CorpCVX181 funds$7.3B
Apple IncAAPL180 funds$50.2B
Amazon.com IncAMZN180 funds$29.0B
Broadcom IncAVGO180 funds$18.7B

Ranked by how many of MPLX's institutional holders also hold each name — a cross-fund conviction signal. Via the MCP server (ticker.co_held).

Recent filings

0 shown

No filings captured for this ticker in the live stream yet.

13F holdings + Form 4 insider transactions + end-of-day price history + the live filing stream, joined for MPLX. Filings are public domain, sourced to SEC EDGAR; price series derived from end-of-day closes. Every panel above is one call to the Arkolith API & MCP server.