MPLX LP (MPLX) — Institutional Holders, Q2 2026

639 institutional investment managers reported a MPLX position on SEC Form 13F-HR for the quarter ended June 30, 2026, with a combined reported value of $11.1B. Every filer is listed below, ranked by position value, 100 per page; this page shows ranks 1 to 100. Put and call option positions are excluded, and a firm filing several lots or share classes is shown once with its total.

← MPLX stock profile

MPLX in Q2 2026: what funds did

Funds that filed a 13F for both Q1 2026 and Q2 2026, by what they did with the common stock. Share counts are adjusted for any split between the two quarters; dollar figures are the change in shares at this quarter’s price.

New positions

Added to

243

Trimmed

146

Sold out

Biggest buyers

ALPS ADVISORSAdded · +1,530,630 sh+$86.2M
HRT FINANCIALAdded · +748,114 sh+$42.1M
MIRAE ASSET GLOBAL ETFS Ltd.Added · +692,332 sh+$39.0M
SRS Capital AdvisorsNew · +596,042 sh+$33.6M
MIZUHO MARKETS AMERICASNew · +575,000 sh+$32.4M

Biggest sellers

TORTOISE CAPITAL ADVISORS, L.L.C.Trimmed · -2,760,115 sh-$155.5M
BlackstoneTrimmed · -2,393,740 sh-$134.8M
BANK OF MONTREALTrimmed · -1,477,895 sh-$83.2M
GOLDMAN SACHS GROUPTrimmed · -1,178,199 sh-$66.4M
KAYNE ANDERSON CAPITAL ADVISORSTrimmed · -963,642 sh-$54.3M

MPLX 13F holders ranked 1–100 of 639

Institutional investors reporting a position in MPLX LP on SEC Form 13F-HR for Q2 2026, ranked by reported value.
#	Institution	Shares	Value	% of portfolio	QoQShares vs Q1 2026
1	ALPS ADVISORS#1 · 28,601,592 sh	28,601,592	$1.6B	7.55%	+5.7%
2	Invesco Ltd.#2 · 18,273,448 sh	18,273,448	$1.0B	0.08%	0.0%
3	Blackstone#3 · 12,956,943 sh	12,956,943	$729.9M	1.87%	-15.6%
4	GOLDMAN SACHS GROUP#4 · 11,329,340 sh	11,329,340	$638.2M	0.06%	-9.4%
5	TORTOISE CAPITAL ADVISORS, L.L.C.#5 · 10,500,469 sh	10,500,469	$591.5M	6.01%	-20.8%
6	MIRAE ASSET GLOBAL ETFS Ltd.#6 · 8,011,582 sh	8,011,582	$451.3M	0.54%	+9.5%
7	KAYNE ANDERSON CAPITAL ADVISORS#7 · 5,862,925 sh	5,862,925	$330.3M	6.48%	-14.1%
8	Energy Income Partners#8 · 5,380,295 sh	5,380,295	$303.1M	4.77%	+4.3%
9	MORGAN STANLEY#9 · 5,275,829 sh	5,275,829	$297.2M	0.02%	+6.3%
10	UBS Group AG#10 · 5,259,274 sh	5,259,274	$296.3M	0.04%	+0.5%
11	CHICKASAW CAPITAL MANAGEMENT#11 · 5,211,734 sh	5,211,734	$293.6M	—	-0.2%
12	FMR#12 · 3,920,887 sh	3,920,887	$220.9M	<0.01%	+16.7%
13	JPMORGAN CHASE#13 · 3,428,352 sh	3,428,352	$192.7M	0.01%	-17.1%
14	Brave Warrior Advisors#14 · 3,180,534 sh	3,180,534	$179.2M	3.90%	-2.2%
15	CIBC Bancorp USA#15 · 2,988,109 sh	2,988,109	$168.3M	0.20%	+13.1%
16	BANK OF MONTREAL#16 · 2,549,532 sh	2,549,532	$143.6M	0.05%	-36.7%
17	Clearbridge Investments#17 · 2,343,689 sh	2,343,689	$132.0M	0.11%	0.0%
18	MILLER HOWARD INVESTMENTS#18 · 2,325,809 sh	2,325,809	$131.0M	—	+3.8%
19	WESTWOOD GROUP#19 · 2,113,845 sh	2,113,845	$119.1M	0.90%	-5.5%
20	BANK OF AMERICA#20 · 2,070,457 sh	2,070,457	$116.6M	<0.01%	-19.5%
21	EAGLE GLOBAL ADVISORS#21 · 1,793,816 sh	1,793,816	$101.0M	3.35%	-0.6%
22	Fractal Investments#22 · 1,668,116 sh	1,668,116	$94.0M	10.84%	-18.7%
23	ROYAL BANK OF CANADA#23 · 1,635,550 sh	1,635,550	$92.1M	0.01%	+42.0%
24	DUFF & PHELPS INVESTMENT MANAGEMENT#24 · 1,618,467 sh	1,618,467	$91.2M	0.86%	-3.0%
25	AlphaCore Capital#25 · 1,615,591 sh	1,615,591	$91.0M	1.67%	0.0%
26	CUSHING ASSET MANAGEMENT, dba NXG INVESTMENT MANAGEMENT#26 · 1,614,600 sh	1,614,600	$91.0M	—	-13.2%
27	BROOKFIELD#27 · 1,356,028 sh	1,356,028	$76.4M	0.10%	-37.6%
28	BNP PARIBAS FINANCIAL MARKETS#28 · 1,313,107 sh	1,313,107	$74.0M	0.03%	+1.7%
29	STIFEL FINANCIAL#29 · 1,306,287 sh	1,306,287	$73.6M	0.06%	-1.8%
30	ING GROEP NV#30 · 1,239,600 sh	1,239,600	$69.8M	0.34%	-29.9%
31	COHEN & STEERS#31 · 1,178,658 sh	1,178,658	$66.4M	0.10%	+26.8%
32	Mariner#32 · 1,143,271 sh	1,143,271	$64.4M	0.07%	-0.8%
33	Epoch Investment Partners#33 · 1,046,028 sh	1,046,028	$58.9M	0.34%	-7.2%
34	Progeny 3#34 · 1,015,966 sh	1,015,966	$57.2M	2.95%	0.0%
35	BARCLAYS PLC#35 · 970,593 sh	970,593	$54.7M	0.01%	+9.4%
36	INFRASTRUCTURE CAPITAL ADVISORS#36 · 936,785 sh	936,785	$52.8M	3.09%	-12.3%
37	RAYMOND JAMES FINANCIAL#37 · 922,179 sh	922,179	$51.9M	0.01%	-5.7%
38	VICTORY CAPITAL MANAGEMENT#38 · 872,763 sh	872,763	$49.2M	0.03%	-10.2%
39	WELLS FARGO & COMPANY#39 · 863,077 sh	863,077	$48.6M	<0.01%	+7.2%
40	Americana Partners#40 · 856,711 sh	856,711	$48.3M	1.09%	+11.9%
41	DEUTSCHE BANK AG\#41 · 853,780 sh	853,780	$48.1M	0.01%	0.0%
42	Allianz Asset Management GmbH#42 · 829,136 sh	829,136	$46.7M	0.04%	0.0%
43	HRT FINANCIAL#43 · 821,049 sh	821,049	$46.2M	0.12%	+1025.7%
44	Neuberger Berman Group#44 · 749,837 sh	749,837	$42.2M	0.03%	-31.8%
45	REAVES W H#45 · 670,500 sh	670,500	$37.8M	0.57%	0.0%
46	SRS Capital Advisors#46 · 596,042 sh	596,042	$33.6M	0.22%	New
47	LONGFELLOW INVESTMENT MANAGEMENT#47 · 579,453 sh	579,453	$32.6M	6.67%	0.0%
48	MIZUHO MARKETS AMERICAS#48 · 575,000 sh	575,000	$32.4M	0.50%	New
49	Recurrent Investment Advisors#49 · 544,714 sh	544,714	$30.7M	1.90%	New
50	Appaloosa#50 · 502,460 sh	502,460	$28.3M	0.37%	0.0%
51	Chicago Partners Investment Group#51 · 488,733 sh	488,733	$28.1M	—	+0.4%
52	NEOS Investment Management#52 · 486,025 sh	486,025	$27.4M	0.10%	+45.5%
53	LPL Financial#53 · 470,133 sh	470,133	$26.5M	<0.01%	-1.4%
54	JENNISON ASSOCIATES#54 · 441,796 sh	441,796	$24.9M	0.01%	-18.9%
55	Oxbow Advisors#55 · 440,557 sh	440,557	$24.8M	2.02%	+1.5%
56	Bollard Group#56 · 431,910 sh	431,910	$24.3M	0.74%	+6.5%
57	Sovereign Investment Advisors#57 · 373,955 sh	373,955	$21.1M	3.95%	0.0%
58	EXCHANGE TRADED CONCEPTS#58 · 368,974 sh	368,974	$20.8M	0.10%	-8.6%
59	HighTower Advisors#59 · 365,716 sh	365,716	$20.6M	0.02%	+0.6%
60	Northside Capital Management#60 · 362,982 sh	362,982	$20.4M	—	+0.2%
61	Maryland State Retirement & Pension System#61 · 355,372 sh	355,372	$20.0M	0.34%	+4.8%
62	Corient Private Wealth#62 · 348,098 sh	348,098	$19.6M	0.03%	+3.1%
63	Texas Yale Capital#63 · 344,263 sh	344,263	$19.4M	0.42%	+8.6%
64	Nuveen#64 · 341,636 sh	341,636	$19.2M	<0.01%	+1.4%
65	Heronetta Management, L.P.#65 · 324,039 sh	324,039	$18.3M	16.76%	0.0%
66	Catalyst Capital Advisors#66 · 322,143 sh	322,143	$18.1M	0.30%	+15.6%
67	TECTONIC ADVISORS#67 · 278,156 sh	278,156	$15.7M	—	+5.9%
68	WALNUT PRIVATE EQUITY PARTNERS#68 · 268,000 sh	268,000	$15.7M	—	+0.6%
69	CITIGROUP#69 · 275,873 sh	275,873	$15.5M	<0.01%	+24.3%
70	TrueMark Investments#70 · 266,413 sh	266,413	$15.0M	1.88%	+14.9%
71	OPAL CAPITAL#71 · 266,131 sh	266,131	$15.0M	2.68%	+14.9%
72	Private Capital Advisors#72 · 260,486 sh	260,486	$14.7M	—	+1.1%
73	Rockefeller Capital Management L.P.#73 · 258,931 sh	258,931	$14.6M	0.02%	+9.9%
74	ENVESTNET ASSET MANAGEMENT#74 · 255,507 sh	255,507	$14.4M	<0.01%	+2.7%
75	Waverly Advisors#75 · 239,612 sh	239,612	$13.5M	0.08%	-0.5%
76	DEROY & DEVEREAUX PRIVATE INVESTMENT COUNSEL#76 · 226,982 sh	226,982	$12.8M	—	-0.2%
77	Adams Asset Advisors#77 · 221,452 sh	221,452	$12.5M	—	+2.5%
78	WILEY BROS.-AINTREE CAPITAL#78 · 219,845 sh	219,845	$12.4M	0.05%	-4.6%
79	RR Advisors#79 · 214,194 sh	214,194	$12.1M	3.49%	0.0%
80	STEPHENS#80 · 211,656 sh	211,656	$11.9M	0.13%	+39.6%
81	CITADEL ADVISORS#81 · 209,147 sh	209,147	$11.8M	<0.01%	+3886.8%
82	Sequoia Financial Advisors#82 · 203,936 sh	203,936	$11.5M	0.06%	+1.8%
83	Cetera Investment Advisers#83 · 194,602 sh	194,602	$11.0M	0.01%	-2.3%
84	UNITED CAPITAL FINANCIAL ADVISORS#84 · 187,586 sh	187,586	$10.6M	0.06%	-0.1%
85	SUSQUEHANNA INTERNATIONAL GROUP, LLP#85 · 186,814 sh	186,814	$10.5M	<0.01%	+317.9%
86	AVENIR#86 · 185,366 sh	185,366	$10.4M	1.27%	-0.8%
87	EVERGREEN CAPITAL MANAGEMENT#87 · 176,959 sh	176,959	$10.0M	—	-3.8%
88	Advisors Asset Management#88 · 168,520 sh	168,520	$9.5M	0.14%	+3.1%
89	Empirical Finance#89 · 164,540 sh	164,540	$9.3M	0.39%	-24.3%
90	Empowered Funds#90 · 164,540 sh	164,540	$9.3M	0.05%	-24.3%
91	HENNESSY ADVISORS#91 · 162,519 sh	162,519	$9.2M	0.29%	0.0%
92	Advisors Capital Management#92 · 157,815 sh	157,815	$8.9M	0.09%	+0.5%
93	Blueprint Investment Partners#93 · 156,970 sh	156,970	$8.8M	0.74%	+3.3%
94	Blueprint Financial Advisors#94 · 156,970 sh	156,970	$8.8M	0.98%	+1.9%
95	Susquehanna Portfolio Strategies#95 · 155,979 sh	155,979	$8.8M	0.14%	-38.4%
96	Gilman Hill Asset Management#96 · 154,120 sh	154,120	$8.7M	—	-0.6%
97	GLENMEDE NA#97 · 152,650 sh	152,650	$8.6M	0.04%	-13.2%
98	Evercore Wealth Management#98 · 152,053 sh	152,053	$8.6M	0.12%	+15.1%
99	Turtle Creek Wealth Advisors#99 · 150,386 sh	150,386	$8.5M	—	+2.9%
100	Kestra Advisory Services#100 · 144,371 sh	144,371	$8.1M	0.03%	+4.2%

Funds that sold out of MPLX in Q2 2026 (60)

Held MPLX at the end of Q1 2026 and filed a Q2 2026 13F without it. Not in the list above, because they no longer hold it. Largest prior position first.

Institutions that held MPLX in Q1 2026 and reported no position in Q2 2026.
Institution	Shares sold	Value in Q1 2026
GOLDENTREE ASSET MANAGEMENT344,686 sh	344,686	$19.7M
Parkwood161,615 sh	161,615	$9.2M
BASSO CAPITAL MANAGEMENT, L.P.71,200 sh	71,200	$4.1M
Aster Capital Management (DIFC) Ltd74,490 sh	74,490	$4.0M
ArchPoint Investors62,977 sh	62,977	$3.6M
Empire Financial Management Company60,321 sh	60,321	$3.4M
Pacer Advisors59,950 sh	59,950	$3.4M
Keeler Thomas Management40,364 sh	40,364	$2.3M
QUADRANT CAPITAL GROUP62,300 sh	62,300	$1.8M
Hartree Partners30,000 sh	30,000	$1.7M
ACADIAN ASSET MANAGEMENT27,531 sh	27,531	$1.6M
Inspire Advisors21,235 sh	21,235	$1.2M
49 WEALTH MANAGEMENT18,037 sh	18,037	$1.0M
SG Americas Securities14,282 sh	14,282	$815.0K
Arete Wealth Advisors12,659 sh	12,659	$722.4K
LEUCADIA NATIONAL12,019 sh	12,019	$685.9K
Ameritas Investment Partners8,983 sh	8,983	$512.6K
MATRIX PRIVATE CAPITAL GROUP8,000 sh	8,000	$456.6K
Golden State Equity Partners7,839 sh	7,839	$447.4K
SANDERS MORRIS HARRIS7,484 sh	7,484	$427.1K
ORBA Wealth Advisors, L.L.C.6,756 sh	6,756	$385.6K
National Wealth Management Group6,476 sh	6,476	$369.6K
GWN SECURITIES6,198 sh	6,198	$353.8K
Beverly Hills Private Wealth6,101 sh	6,101	$348.2K
Secure Asset Management5,729 sh	5,729	$326.9K
Allie Family Office5,719 sh	5,719	$326.4K
ENDEAVOR PRIVATE WEALTH5,587 sh	5,587	$318.8K
Procyon Advisors5,553 sh	5,553	$316.9K
Visionary Wealth Advisors5,290 sh	5,290	$301.9K
Dauntless Investment Group5,170 sh	5,170	$295.1K
De Lisle Partners LLP5,000 sh	5,000	$285.4K
MISSION WEALTH MANAGEMENT5,000 sh	5,000	$285.4K
Belpointe Asset Management4,935 sh	4,935	$281.6K
Fortis Capital Advisors4,935 sh	4,935	$281.6K
CIBC WORLD MARKET4,905 sh	4,905	$279.9K
FLOW TRADERS U.S.4,525 sh	4,525	$258.0K
EVOLVE PRIVATE WEALTH4,284 sh	4,284	$244.5K
SeaCrest Wealth Management4,250 sh	4,250	$242.5K
WELCH & FORBES4,029 sh	4,029	$229.9K
Cyndeo Wealth Partners4,015 sh	4,015	$229.1K
MinichMacGregor Wealth Management3,758 sh	3,758	$214.5K
Plan Group Financial3,674 sh	3,674	$209.7K
Nova R Wealth3,590 sh	3,590	$204.9K
VISTA INVESTMENT PARTNERS3,529 sh	3,529	$201.4K
THRIVENT FINANCIAL FOR LUTHERANS3,519 sh	3,519	$201.0K
Sound Income Strategies3,432 sh	3,432	$191.9K
Crewe Advisors2,211 sh	2,211	$126.2K
Global Assets Advisory1,538 sh	1,538	$87.7K
Trust Co1,235 sh	1,235	$70.5K
Western Wealth Management1,138 sh	1,138	$65.0K
Fortitude Family Office1,009 sh	1,009	$57.6K
WFA of San Diego1,000 sh	1,000	$57.1K
Root Financial Partners778 sh	778	$44.4K
CLEAR INVESTMENT RESEARCH700 sh	700	$39.9K
WOLFF WIESE MAGANA659 sh	659	$37.6K
TWIN PEAKS WEALTH ADVISORS332 sh	332	$18.9K
CURIO WEALTH263 sh	263	$15.0K
Signature Equity Partners215 sh	215	$12.3K
Signature Resources Capital Management108 sh	108	$6.2K
Grove Bank100 sh	100	$5.7K

Source: Form 13F-HR filings on SEC EDGAR, Q2 2026. Values are as reported by each manager at quarter end. “% of portfolio” is the position’s share of the manager’s total reported 13F value for the same quarter. “New” means the manager filed a 13F for Q1 2026 without this position; a dash means no comparison is available. Where a manager’s own filing is internally inconsistent its value is withheld and it is listed last. 13F data shows reported holdings, not recommendations.