Mplx MPLX Institutional Ownership

NYSE MPLX

$56.38 -0.65 (-1.14%)

At close: Sep 30, 2026 · 4:00 PM EDT

Institutions by Trading Activity

624 Institutions

Increased 301 48.2%

Unchanged 179 28.7%

Reduced 144 23.1%

Ownership Statistics

13F · as of 30 Jun, 2026

Institutional Ownership

18.82%

▼-0.61 pp QoQ

Shares Held by Institutions

191.07Mn

of 1.02Bn outstanding

▼-2.15% QoQ

Shares Outstanding

1.02Bn

823.93Mn held outside 13F filers

Institutional Investors

624

filed 13F for Jun 2026

▼-12 vs prior quarter

Net Shares Added (QoQ)

-4.20Mn

distributed since last quarter

Value of Holdings

$10.77Bn

reported market value

Shares Owned by Institutions

Shares held % of outstanding

Latest —

Average ownership —

Peak ownership —

Shares Purchased/Sold by Institutions

Accumulated Distributed

Latest quarter —

Net over range —

Accumulating quarters —

Ownership Summary

Quarter ending 30 Jun, 2026

Mplx Lp (NYSE:MPLX) appears in 624 institutional 13F filings for the quarter ending June 2026.

These investors collectively held 18.8% of Mplx's outstanding shares in June 2026, down from 19.4% in March 2026.
They decreased total shares held in MPLX by -2.15% quarter over quarter, and investors in Mplx increased 9.47% from a year ago.
Among the 624 funds, 301 bought more Mplx shares, 144 sold down, and 179 held their ground.
Combined, these investors held 191.07Mn shares in MPLX for June 2026, down by 4.2Mn shares quarter on quarter, and down 29.58Mn shares year over year.
As of June 30, 2026, ALPS ADVISORS INC held the largest stake in Mplx with 28.6Mn shares, accounting for 2.82% of total shares outstanding.
The most significant purchases of MPLX for the quarter ending June 2026 came from ALPS ADVISORS INC (1.53Mn), HRT FINANCIAL LP (748.11K), MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. (692.33K), Arax Advisory Partners (594.31K), MIZUHO MARKETS AMERICAS LLC (575.0K).
The largest sales of MPLX for the quarter ending June 2026 came from TORTOISE CAPITAL ADVISORS, L.L.C. (2.76Mn), Blackstone Inc. (2.39Mn), Bank Of Montreal /Can/ (1.48Mn), Goldman Sachs Group Inc (1.18Mn), KAYNE ANDERSON CAPITAL ADVISORS LP (963.64K).
Per Business Quant data, the top 10 holders of Mplx for the quarter ending June 2026 are ALPS ADVISORS INC (28.6Mn), Invesco Ltd. (18.27Mn), Blackstone Inc. (12.96Mn), Goldman Sachs Group Inc (11.33Mn), TORTOISE CAPITAL ADVISORS, L.L.C. (10.5Mn), MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd. (8.01Mn), KAYNE ANDERSON CAPITAL ADVISORS LP (5.86Mn), Energy Income Partners, LLC (5.38Mn), Morgan Stanley (5.28Mn), UBS Group AG (5.26Mn).

Form 13F Holdings

624 Institutional Holders

Report period 30 Jun, 2026

Total shares held 191.07Mn

Of outstanding 18.82%

#	Institution	CIK	Shares Held	% of Outstanding	Change (QoQ)	Change (%)	Value (USD)
1	ALPS ADVISORS INC	0001376113	28,601,592	2.82%	▲1,530,630	+5.65%	$1.61Bn
2	Invesco Ltd.	0000914208	18,273,448	1.80%	▲6,842	+0.04%	$1.03Bn
3	Blackstone Inc.	0001393818	12,956,943	1.28%	▼2,393,740	-15.59%	$729.86Mn
4	Goldman Sachs Group Inc	0000886982	11,329,340	1.12%	▼1,178,199	-9.42%	$638.18Mn
5	TORTOISE CAPITAL ADVISORS, L.L.C.	0001280965	10,500,469	1.03%	▼2,760,115	-20.81%	$591.49Mn
6	MIRAE ASSET GLOBAL ETFS HOLDINGS Ltd.	0001705339	8,011,582	0.79%	▲692,332	+9.46%	$451.29Mn
7	KAYNE ANDERSON CAPITAL ADVISORS LP	0000949615	5,862,925	0.58%	▼963,642	-14.12%	$330.26Mn
8	Energy Income Partners, LLC	0001388814	5,380,295	0.53%	▲222,817	+4.32%	$303.07Mn
9	Morgan Stanley	0000895421	5,275,829	0.52%	▲311,630	+6.28%	$297.19Mn
10	UBS Group AG	0001610520	5,259,274	0.52%	▲25,762	+0.49%	$296.25Mn
11	FMR LLC	0000315066	3,920,887	0.39%	▲560,024	+16.66%	$220.86Mn
12	Jpmorgan Chase & Co	0000019617	3,428,352	0.34%	▼705,314	-17.06%	$192.74Mn
13	Brave Warrior Advisors, LLC	0001553733	3,180,534	0.31%	▼72,990	-2.24%	$179.16Mn
14	CIBC Bancorp USA Inc.	0001711924	2,988,109	0.29%	▲346,005	+13.10%	$168.32Mn
15	Bank Of Montreal /Can/	0000927971	2,549,532	0.25%	▼1,477,895	-36.70%	$143.62Mn
16	Clearbridge Investments, LLC	0001348883	2,343,689	0.23%	0	0.00%	$132.02Mn
17	MILLER HOWARD INVESTMENTS INC /NY	0000903947	2,325,809	0.23%	▲86,115	+3.84%	$131.01Mn
18	Westwood Holdings Group Inc	0001165002	2,113,845	0.21%	▼123,011	-5.50%	$119.07Mn
19	Bank Of America Corp /De/	0000070858	2,070,457	0.20%	▼502,819	-19.54%	$116.63Mn
20	EAGLE GLOBAL ADVISORS LLC	0001130787	1,793,816	0.18%	▼11,530	-0.64%	$101.05Mn

Showing 1 to 20 of 624 holders