MPLX Ownership | Who Owns MPLX?

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MPLX Ownership Summary

MPLX is owned by 7.26% institutional investors, 63.97% insiders, and 28.77% retail investors. Alps advisors is the largest institutional shareholder, holding 2.66% of MPLX shares. Cushing Midstream Strategy is the top mutual fund, with 18.76% of its assets in MPLX shares.

MPLX Ownership Benchmark

Type	Name	% Inst	% Insiders	% Retail
Stock	MPLX	7.26%	63.97%	28.77%
Sector	Energy Stocks	79.37%	16.32%	4.32%
Industry	Oil & Gas Midstream Stocks	35.73%	20.80%	43.47%

Institutional Shareholders

Top Institutional Shareholders by Total Shares

Holder	Shares	% Holding	Value
Alps advisors	27.07M	2.66%	$1.54B
Invesco	18.27M	1.79%	$1.04B
Blackstone	15.35M	1.51%	$876.06M
Tortoise capital advisors	13.26M	1.30%	$756.78M
Goldman sachs group	12.51M	1.23%	$713.81M
Mirae asset global etfs	7.32M	0.72%	$417.71M
Kayne anderson capital advisors lp	6.83M	0.67%	$389.59M
Ubs group	5.23M	0.51%	$298.68M
Chickasaw capital management	5.22M	0.51%	$298.06M
Energy income partners	5.16M	0.51%	$294.34M

Top Institutional Shareholders by % of Total Assets

Holder	Shares	% Assets	Value
Ppm america inc/il	87.20K	29.98%	$4.98M
Heronetta management	324.04K	16.88%	$18.49M
Fractal investments	2.05M	13.85%	$117.07M
Chickasaw capital management	5.22M	10.54%	$298.06M
Walnut private equity partners	266.50K	8.39%	$15.21M
Tortoise capital advisors	13.26M	7.88%	$756.78M
Amplify investments	7.33K	7.50%	$418.15K
Belfer management	7.83K	7.47%	$446.82K
Kayne anderson capital advisors lp	6.83M	7.47%	$389.59M
Alps advisors	27.07M	7.27%	$1.54B

Top Buyers

Holder	Shares	% Assets	Change
Alps advisors	27.07M	7.27%	26.64M
Bank of montreal /can/	4.03M	0.09%	4.02M
Westwood group	2.24M	0.93%	2.19M
Fmr	3.36M	0.01%	1.69M
Victory capital management	971.48K	0.04%	906.75K

Top Sellers

Holder	Shares	% Assets	Change
Kingstone capital partners texas	-	-	-15.08M
Mirae asset global investments	-	-	-5.96M
Amundi	-	-	-1.41M
Brave warrior advisors	3.25M	4.60%	-1.22M
Ing groep nv	1.77M	0.62%	-1.14M

New Positions

Holder	Shares	% Assets	Change	Value
Aster capital management (difc)	74.49K	1.30%	74.49K	$3.99M
Simplex trading	56.01K	0.00%	56.01K	$2.38M
Caption management	48.80K	0.03%	48.80K	$2.08M
Keeler thomas management	40.36K	0.97%	40.36K	$2.30M
Haverford trust	37.30K	0.02%	37.30K	$2.13M

Sold Out

Holder	Change
Transce3nd	-1.00
Ridgewood investments	-12.00
Abich financial wealth management	-60.00
Truvestments capital	-62.00
Wealth preservation advisors	-80.00

Institutional Ownership Trends

Date	Holdings	Change %	Shares	Change %	Ownership	Change %	Increased Position	Change %	Decreased Position	Change %
Mar 31, 2026	416	-34.38%	74,000,016	-58.48%	7	2.37%	184	-43.56%	106	-18.46%
Dec 31, 2025	475	-19.08%	89,056,931	-58.14%	8	2.01%	233	-15.88%	94	-22.31%
Sep 30, 2025	562	-3.93%	209,440,684	-1.44%	20	4.73%	265	-4.33%	116	-12.12%
Jun 30, 2025	587	2.26%	232,075,309	6.51%	22	4.99%	276	0.36%	136	4.62%
Mar 31, 2025	7	-98.70%	1,806,533	-99.17%	-	0.04%	4	-98.48%	1	-99.18%

Top Mutual Funds Shareholders

Holder	Shares	% Holding	Change
Cushing Midstream Strategy	190.45M	18.76%	6.19M
Alerian MLP ETF	26.75M	2.64%	15.98K
Invesco SteelPath MLP Income Y	11.25M	1.11%	-
Kayne Anderson Energy Infrastructure Fund, Inc	6.16M	0.60%	-
Kayne Anderson Energy Infrastructure	5.75M	0.57%	-
Tortoise Midstream MLP Separate Accounts	5.73M	0.56%	4.17M
Tortoise Energy Infrastructure TR Ins	4.85M	0.48%	153.39K
Global X MLP ETF	4.53M	0.45%	-
Goldman Sachs MLP Energy Infras Instl	3.74M	0.37%	3.69K
Tortoise Energy Infrastructure Inst Comp	3.50M	0.34%	92.03K

Recent Insider Transactions

Date	Name	Role	Activity	Value
Mar 07, 2025	Lyon Shawn M	Senior VP, Log. & Storage	Buy	$211.00K
Nov 18, 2024	HAGEDORN CARL KRISTOPHER	Exec VP & Chief Fin Ofc	Sell	$188.96K
Apr 19, 2022	Floerke Gregory Scott	Exec. VP and COO	Sell	$87.50K
Feb 07, 2022	Floerke Gregory Scott	Exec. VP and COO	Sell	$83.00K
Feb 02, 2022	SEMPLE FRANK M	-	Sell	$952.00K

Insider Transactions Trends

Date	Buy	Sell
2026 Q2	-	-
2026 Q1	-	-
2025 Q4	-	-
2025 Q3	-	-
2025 Q2	-	-

MPLX Ownership FAQ

Who Owns MPLX?

MPLX shareholders are primarily institutional investors at 7.26%, followed by 63.97% insiders and 28.77% retail investors. The average institutional ownership in MPLX's industry, Oil & Gas Midstream Stocks , is 35.73%, which MPLX falls below.

Who owns the most shares of MPLX?

MPLX’s largest shareholders are Alps advisors (27.07M shares, 2.66%), Invesco (18.27M shares, 1.79%), and Blackstone (15.35M shares, 1.51%). Together, they hold 5.96% of MPLX’s total shares outstanding.

Does Blackrock own MPLX?

BlackRock is not among the top 10 institutional shareholders of MPLX.

Who is MPLX’s biggest shareholder by percentage of total assets invested?

Ppm america inc/il is MPLX’s biggest shareholder by percentage of total assets invested, with 29.98% of its assets in 87.2K MPLX shares, valued at 4.98M$.

Who is the top mutual fund holder of MPLX shares?

Cushing Midstream Strategy is the top mutual fund holder of MPLX shares, with 18.76% of its total shares outstanding invested in 190.45M MPLX shares.

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