MPLX · Mplx LP · Shareholders & Ownership

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$55.91 -0.64 (-1.13%) At close · Nov 6

Ex-dividend: $1.2111 · Nov 6, 2026 Return incl. dividend (before tax) +1.01%

Play latest call Q2 2026 earnings call transcript

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Market Cap

$56.64B

1.01B

Volume · Nov 6 1.91M Avg daily vol (3M) 1.42M

Every disclosed holder of MPLX in one list: 13F institutions, Schedule 13D and 13G filers, insiders (Forms 3, 4 and 5) and registered funds, each from its own latest filing. Holders nest by CIK and SEC reporting links, never by name, and each is summed once.

How the holder list picks a filing →

Who Owns MPLX

13F quarter Sep 30, 2026, combined view: filers that have not filed yet carry their Jun 30, 2026 positions

Holder group	Holders	Shares	% Out	Summed
Institutional (13F)	643	198,734,119	19.62%	Yes
Insiders (Forms 3, 4, 5)	19	1,738,149	0.17%	Yes
13D/G-only blocks	2	670,828,884	66.22%	Yes
Remaining	—	141,725,887	13.99%	Rest
Registered funds (N-PORT, not summed)	106	99,100,148	9.78%	No

Shares outstanding: 1,013,027,039, the issuer's latest cover-page count restated onto today's split basis.

13D/G-only counts each filer's latest 13D or 13G that no 13F report of the listing contains, that names no 13F filer and that no counted insider files. Funds are never summed: their shares sit inside their advisers' 13F reports.

Holders of MPLX

One row per holder Every filing By ultimate parent

All 13F Funds Insiders 13D/G Non-US

#	Holder	Shares	% Out	Change	As of	Notes
1	Marathon Petroleum Corporation 13D CIK 1510295 · Unknown · May 8, 2024 unconfirmed, last confirmed May 8, 2024	647,415,452	63.91%	—	May 8, 2024	unconfirmed, last confirmed May 8, 2024
2	ALPS ADVISORS INC 13F CIK 1376113 · Registered investment adviser · Sep 30, 2026	30,463,695	3.01%	+1,862,103	Sep 30, 2026
2.1	Alerian MLP ETF Fund S000029786 · Registered fund · Aug 31, 2026 ALPS ETF TRUST, not summed	28,759,446	2.84%	+1,898,559	Aug 31, 2026	ALPS ETF TRUST, not summed
2.2	Alerian Energy Infrastructure ETF Fund S000042676 · Registered fund · Aug 31, 2026 ALPS ETF TRUST, not summed	464,015	0.05%	+74,566	Aug 31, 2026	ALPS ETF TRUST, not summed
2.3	ALPS \| Alerian Energy Infrastructure Portfolio Fund S000040336 · Registered fund · Jun 30, 2026 ALPS VARIABLE INVESTMENT TRUST, not summed	130,759	0.01%	+795	Jun 30, 2026	ALPS VARIABLE INVESTMENT TRUST, not summed
2.4	Barrons 400 ETF Fund S000040588 · Registered fund · Aug 31, 2026 ALPS ETF TRUST, not summed	8,740	0.00%	+287	Aug 31, 2026	ALPS ETF TRUST, not summed
3	Stephen A. Schwarzman 13G CIK 1404071 · Unknown · Dec 31, 2023 Rule 13d-1(c), passive investor, unconfirmed, last confirmed Dec 31, 2023	23,413,432	2.31%	—	Dec 31, 2023	Rule 13d-1(c), passive investor, unconfirmed, last confirmed Dec 31, 2023
4	Invesco Ltd. 13F CIK 914208 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	18,273,448	1.80%	+6,842	Jun 30, 2026	carried, not yet filed for the newest quarter
4.1	Invesco SteelPath MLP Income Fund Fund S000064700 · Registered fund · Aug 31, 2026 AIM Investment Funds (Invesco Investment Funds), not summed	11,304,596	1.12%	0	Aug 31, 2026	AIM Investment Funds (Invesco Investment Funds), not summed
4.2	Invesco SteelPath MLP Select 40 Fund Fund S000064698 · Registered fund · Aug 31, 2026 AIM Investment Funds (Invesco Investment Funds), not summed	2,920,428	0.29%	0	Aug 31, 2026	AIM Investment Funds (Invesco Investment Funds), not summed
4.3	Invesco SteelPath MLP Alpha Fund Fund S000064699 · Registered fund · Aug 31, 2026 AIM Investment Funds (Invesco Investment Funds), not summed	2,564,267	0.25%	0	Aug 31, 2026	AIM Investment Funds (Invesco Investment Funds), not summed
4.4	Invesco SteelPath MLP Alpha Plus Fund Fund S000064701 · Registered fund · Aug 31, 2026 AIM Investment Funds (Invesco Investment Funds), not summed	1,019,782	0.10%	-22,079	Aug 31, 2026	AIM Investment Funds (Invesco Investment Funds), not summed
4.5	Invesco SteelPath MLP & Energy Infrastructure ETF Fund S000090149 · Registered fund · Jul 31, 2026 Invesco Actively Managed Exchange-Traded Fund Trust, not summed	44,298	0.00%	+1,030	Jul 31, 2026	Invesco Actively Managed Exchange-Traded Fund Trust, not summed
5	Blackstone Inc. 13F CIK 1393818 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	12,956,943	1.28%	-2,393,740	Jun 30, 2026	carried, not yet filed for the newest quarter
6	GOLDMAN SACHS GROUP INC 13F CIK 886982 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	11,329,340	1.12%	-1,178,199	Jun 30, 2026	carried, not yet filed for the newest quarter
6.1	Goldman Sachs MLP Energy Infrastructure Fund Fund S000040184 · Registered fund · Aug 31, 2026 GOLDMAN SACHS TRUST, not summed	3,561,939	0.35%	-273,351	Aug 31, 2026	GOLDMAN SACHS TRUST, not summed
6.2	Goldman Sachs Energy Infrastructure Fund Fund S000058984 · Registered fund · Aug 31, 2026 GOLDMAN SACHS TRUST, not summed	492,966	0.05%	-58,023	Aug 31, 2026	GOLDMAN SACHS TRUST, not summed
6.3	Goldman Sachs Rising Dividend Growth Fund Fund S000036119 · Registered fund · Jul 31, 2026 GOLDMAN SACHS TRUST, not summed	118,437	0.01%	-4,823	Jul 31, 2026	GOLDMAN SACHS TRUST, not summed
7	TORTOISE CAPITAL ADVISORS, L.L.C. 13F CIK 1280965 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	10,500,469	1.04%	-2,760,115	Jun 30, 2026	carried, not yet filed for the newest quarter
7.1	Tortoise Energy Infrastructure Total Return Fund Fund S000092082 · Registered fund · Aug 31, 2026 Tortoise Capital Series Trust, not summed	3,368,095	0.33%	-197,699	Aug 31, 2026	Tortoise Capital Series Trust, not summed
7.2	Tortoise North American Pipeline ETF Fund S000092075 · Registered fund · Aug 31, 2026 Tortoise Capital Series Trust, not summed	372,232	0.04%	-3,961	Aug 31, 2026	Tortoise Capital Series Trust, not summed
7.3	Tortoise Energy ETF Fund S000092090 · Registered fund · Aug 31, 2026 Tortoise Capital Series Trust, not summed	186,359	0.02%	-230,004	Aug 31, 2026	Tortoise Capital Series Trust, not summed
7.4	Tortoise Electrification Infrastructure ETF Fund S000088745 · Registered fund · Aug 31, 2026 Tortoise Capital Series Trust, not summed	98,973	0.01%	-5,192	Aug 31, 2026	Tortoise Capital Series Trust, not summed
8	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. 13F CIK 1705339 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	8,011,582	0.79%	+692,332	Jun 30, 2026	carried, not yet filed for the newest quarter
8.1	Global X MLP ETF Fund S000033201 · Registered fund · Aug 31, 2026 GLOBAL X FUNDS, not summed	4,989,648	0.49%	+203,987	Aug 31, 2026	GLOBAL X FUNDS, not summed
8.2	Global X MLP and Energy Infrastructure ETF Fund S000040076 · Registered fund · Aug 31, 2026 GLOBAL X FUNDS, not summed	2,958,683	0.29%	+219,103	Aug 31, 2026	GLOBAL X FUNDS, not summed
8.3	Global X SuperDividend U.S. ETF Fund S000039638 · Registered fund · Jul 31, 2026 GLOBAL X FUNDS, not summed	268,094	0.03%	+6,670	Jul 31, 2026	GLOBAL X FUNDS, not summed
8.4	Global X Alternative Income ETF Fund S000049563 · Registered fund · Aug 31, 2026 GLOBAL X FUNDS, not summed	10,773	0.00%	+1,026	Aug 31, 2026	GLOBAL X FUNDS, not summed
9	KAYNE ANDERSON CAPITAL ADVISORS LP 13F CIK 949615 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,862,925	0.58%	-963,642	Jun 30, 2026	carried, not yet filed for the newest quarter
10	Energy Income Partners, LLC 13F CIK 1388814 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	5,380,295	0.53%	+222,817	Jun 30, 2026	carried, not yet filed for the newest quarter
10.1	EIP Growth and Income Fund Fund S000013896 · Registered fund · Jul 31, 2026 EIP Investment Trust, not summed	63,590	0.01%	-1,000	Jul 31, 2026	EIP Investment Trust, not summed
11	MORGAN STANLEY 13F CIK 895421 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	5,275,829	0.52%	+311,630	Jun 30, 2026	carried, not yet filed for the newest quarter
12	UBS Group AG 13F CIK 1610520 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	5,259,274	0.52%	+25,762	Jun 30, 2026	carried, not yet filed for the newest quarter
13	CHICKASAW CAPITAL MANAGEMENT LLC 13F CIK 1276460 · Registered investment adviser · Sep 30, 2026	5,212,185	0.51%	+451	Sep 30, 2026
13.1	MainGate MLP Fund Fund S000031058 · Registered fund · Aug 31, 2026 MainGate Trust, not summed	2,000,000	0.20%	+50,000	Aug 31, 2026	MainGate Trust, not summed
14	KAYNE ANDERSON ENERGY INFRASTRUCTURE FUND, INC Fund S001293613 · Registered fund · Aug 31, 2026 Kayne Anderson Energy Infrastructure Fund, Inc., not summed	4,668,571	0.46%	-158,339	Aug 31, 2026	Kayne Anderson Energy Infrastructure Fund, Inc., not summed
15	FMR LLC 13F CIK 315066 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	3,920,887	0.39%	+560,024	Jun 30, 2026	carried, not yet filed for the newest quarter
15.1	Fidelity Dividend Growth Fund Fund S000007197 · Registered fund · Jul 31, 2026 Fidelity Securities Fund, not summed	2,600,900	0.26%	+252,800	Jul 31, 2026	Fidelity Securities Fund, not summed
15.2	Fidelity Capital Appreciation Fund Fund S000005450 · Registered fund · Jul 31, 2026 Fidelity Capital Trust, not summed	1,389,454	0.14%	+153,900	Jul 31, 2026	Fidelity Capital Trust, not summed
15.3	Fidelity Fundamental Large Cap Core ETF Fund S000068174 · Registered fund · Jul 31, 2026 Fidelity Covington Trust, not summed	60,724	0.01%	+302	Jul 31, 2026	Fidelity Covington Trust, not summed
15.4	VIP Dynamic Capital Appreciation Portfolio Fund S000007731 · Registered fund · Jun 30, 2026 Variable Insurance Products Fund III, not summed	54,223	0.01%	+10,300	Jun 30, 2026	Variable Insurance Products Fund III, not summed
15.5	Fidelity Strategic Dividend and Income Fund Fund S000017681 · Registered fund · Aug 31, 2026 Fidelity Salem Street Trust, not summed	23,516	0.00%	-1,910	Aug 31, 2026	Fidelity Salem Street Trust, not summed
16	JPMORGAN CHASE & CO 13F CIK 19617 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	3,428,352	0.34%	-705,314	Jun 30, 2026	carried, not yet filed for the newest quarter
17	Brave Warrior Advisors, LLC 13F CIK 1553733 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	3,180,534	0.31%	-72,990	Jun 30, 2026	carried, not yet filed for the newest quarter
18	CIBC Bancorp USA Inc. 13F CIK 1711924 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	2,988,109	0.30%	+346,005	Jun 30, 2026	carried, not yet filed for the newest quarter
19	BANK OF MONTREAL /CAN/ 13F CIK 927971 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	2,549,532	0.25%	-1,477,895	Jun 30, 2026	carried, not yet filed for the newest quarter
20	Clearbridge Investments, LLC 13F CIK 1348883 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,343,689	0.23%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
21	MILLER HOWARD INVESTMENTS INC /NY 13F CIK 903947 · Registered investment adviser · Sep 30, 2026	2,317,575	0.23%	-8,234	Sep 30, 2026
22	WESTWOOD HOLDINGS GROUP INC 13F CIK 1165002 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	2,113,845	0.21%	-123,011	Jun 30, 2026	carried, not yet filed for the newest quarter
23	BANK OF AMERICA CORP /DE/ 13F CIK 70858 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	2,070,457	0.20%	-502,819	Jun 30, 2026	carried, not yet filed for the newest quarter
24	EAGLE GLOBAL ADVISORS LLC 13F CIK 1130787 · Registered investment adviser · Sep 30, 2026	1,793,676	0.18%	-140	Sep 30, 2026
25	Fractal Investments LLC 13F CIK 1843590 · Registered investment adviser · Sep 30, 2026	1,668,116	0.16%	0	Sep 30, 2026
26	ROYAL BANK OF CANADA 13F CIK 1000275 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,635,550	0.16%	+483,645	Jun 30, 2026	carried, not yet filed for the newest quarter
27	AlphaCore Capital LLC 13F CIK 1713662 · Registered investment adviser · Sep 30, 2026	1,615,663	0.16%	+72	Sep 30, 2026
28	DUFF & PHELPS INVESTMENT MANAGEMENT CO 13F CIK 765443 · Registered investment adviser · Sep 30, 2026	1,423,467	0.14%	-195,000	Sep 30, 2026
29	BROOKFIELD Corp /ON/ 13F CIK 1001085 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,356,028	0.13%	-817,788	Jun 30, 2026	carried, not yet filed for the newest quarter
29.1	Center Coast Brookfield Midstream Focus Fund Fund S000059105 · Registered fund · Jun 30, 2026 Brookfield Investment Funds, not summed	978,177	0.10%	-22,100	Jun 30, 2026	Brookfield Investment Funds, not summed
30	CUSHING ASSET MANAGEMENT, LP dba NXG INVESTMENT MANAGEMENT 13F CIK 1329375 · Registered investment adviser · Sep 30, 2026	1,330,800	0.13%	-283,800	Sep 30, 2026
31	BNP PARIBAS ARBITRAGE, SA 13F CIK 1166588 · Non-US institution · Jun 30, 2026 carried, not yet filed for the newest quarter	1,313,107	0.13%	+22,565	Jun 30, 2026	carried, not yet filed for the newest quarter
32	STIFEL FINANCIAL CORP 13F CIK 720672 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,306,287	0.13%	-24,178	Jun 30, 2026	carried, not yet filed for the newest quarter
33	ING GROEP NV 13F CIK 1039765 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	1,239,600	0.12%	-528,600	Jun 30, 2026	carried, not yet filed for the newest quarter
34	COHEN & STEERS, INC. 13F CIK 1284812 · Investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,178,658	0.12%	+248,907	Jun 30, 2026	carried, not yet filed for the newest quarter
35	Mariner, LLC 13F CIK 1373442 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,143,271	0.11%	-9,331	Jun 30, 2026	carried, not yet filed for the newest quarter
36	Epoch Investment Partners, Inc. 13F CIK 1305841 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	1,046,028	0.10%	-81,516	Jun 30, 2026	carried, not yet filed for the newest quarter
37	Progeny 3, Inc. 13F CIK 1536006 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	1,015,966	0.10%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
38	WESTWOOD SALIENT MLP & ENERGY Fund S000077491 · Registered fund · Jul 31, 2026 Ultimus Managers Trust, not summed	1,013,578	0.10%	-75,107	Jul 31, 2026	Ultimus Managers Trust, not summed
39	BARCLAYS PLC 13F CIK 312069 · Bank · Sep 30, 2026	1,000,595	0.10%	+30,002	Sep 30, 2026
40	INFRASTRUCTURE CAPITAL ADVISORS, LLC 13F CIK 1621802 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	936,785	0.09%	-131,466	Jun 30, 2026	carried, not yet filed for the newest quarter
41	RAYMOND JAMES FINANCIAL INC 13F CIK 720005 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	922,179	0.09%	-55,761	Jun 30, 2026	carried, not yet filed for the newest quarter
42	DEUTSCHE BANK AG\ 13F CIK 948046 · Non-US institution · Sep 30, 2026	906,110	0.09%	+52,330	Sep 30, 2026
43	NYLIM Cushing MLP Premier Fund Fund S000045768 · Registered fund · Aug 31, 2026 NYLIM FUNDS TRUST, not summed	900,000	0.09%	-210,000	Aug 31, 2026	NYLIM FUNDS TRUST, not summed
44	VICTORY CAPITAL MANAGEMENT INC 13F CIK 1040188 · Registered investment adviser · Jun 30, 2026 carried, not yet filed for the newest quarter	872,763	0.09%	-98,714	Jun 30, 2026	carried, not yet filed for the newest quarter
44.1	Victory Pioneer Multi-Asset Income Fund Fund S000089756 · Registered fund · Jul 31, 2026 Victory Portfolios IV, not summed	872,763	0.09%	0	Jul 31, 2026	Victory Portfolios IV, not summed
45	WELLS FARGO & COMPANY/MN 13F CIK 72971 · Bank · Jun 30, 2026 carried, not yet filed for the newest quarter	863,077	0.09%	+57,847	Jun 30, 2026	carried, not yet filed for the newest quarter
46	Americana Partners, LLC 13F CIK 1797678 · Registered investment adviser · Sep 30, 2026	858,158	0.08%	+1,447	Sep 30, 2026
47	Allianz Asset Management GmbH 13F CIK 1535323 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	829,136	0.08%	0	Jun 30, 2026	carried, not yet filed for the newest quarter
48	HRT FINANCIAL LP 13F CIK 1475597 · Unknown · Jun 30, 2026 carried, not yet filed for the newest quarter	821,049	0.08%	+748,114	Jun 30, 2026	carried, not yet filed for the newest quarter
49	Tortoise Energy Infrastructure and Income Fund Fund S000066176 · Registered fund · May 31, 2025 Managed Portfolio Series, not summed	805,107	0.08%	-34,920	May 31, 2025	Managed Portfolio Series, not summed
50	NEUBERGER BERMAN GROUP LLC 13F CIK 1465109 · Holding company · Jun 30, 2026 carried, not yet filed for the newest quarter	749,837	0.07%	-350,172	Jun 30, 2026	carried, not yet filed for the newest quarter
50.1	Neuberger Energy Transition & Infrastructure ETF Fund S000075395 · Registered fund · Jul 31, 2026 Neuberger Berman ETF Trust, not summed	11,985	0.00%	+1,020	Jul 31, 2026	Neuberger Berman ETF Trust, not summed

2 more nested rows are not shown here; Every filing lists them all.

Shares are restated onto today's split basis. Change compares each row with the same holder's previous filing in the same source; a dash means there is none to compare. Nested 13D/G, insider and fund rows are not summed, since a 13F report already holds them.

Showing 1–50 of 700 holders

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Key facts CIK 1552000 CUSIP 55336V100 13F (30d) 370 filings 336 filers Visit website Investor relations