There is a long list of 443 institutional holders of MPLX within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of MPLX by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-MPLX table below, the initial column indicates the name of each top institutional holder of MPLX, with a link to that fund's top holdings. The next columns indicate the amount of MPLX stock held by each of the institutional holders of MPLX, followed by the MPLX position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
Alps Advisors Inc.	25,611,269	$940,446	12/31/2023
MPLX	25,611,269	$940,446	12/31/2023
Blackstone Group Inc	23,413,432	$859,741	12/31/2023
MPLX	23,413,432	$859,741	12/31/2023
Invesco Ltd.	20,844,942	$765,426	12/31/2023
MPLX	20,844,942	$765,426	12/31/2023
Goldman Sachs Group Inc.		$621,754	12/31/2023
MPLX	16,932,299	$621,754	12/31/2023
Put	185,000	$6,793	12/31/2023
Call	185,000	$6,793	12/31/2023
Tortoise Capital Advisors L.L.C.	11,562,838	$424,587	12/31/2023
MPLX	11,562,838	$424,587	12/31/2023
Bank of America Corp DE		$414,294	12/31/2023
MPLX	10,192,520	$374,269	12/31/2023
Call	1,090,000	$40,025	12/31/2023
JPMorgan Chase & Co.	7,155,245	$262,741	12/31/2023
MPLX	7,155,245	$262,741	12/31/2023
Mirae Asset Global Investments Co. Ltd.	6,463,737	$237,348	12/31/2023
MPLX	6,463,737	$237,348	12/31/2023
Chickasaw Capital Management LLC	5,409,380	$224,814	03/31/2024
MPLX	5,409,380	$224,814	03/31/2024
Kayne Anderson Capital Advisors LP	5,756,505	$211,379	12/31/2023
MPLX	5,756,505	$211,379	12/31/2023
UBS Group AG	5,741,012	$210,810	12/31/2023
MPLX	5,741,012	$210,810	12/31/2023
Morgan Stanley	5,739,501	$210,755	12/31/2023
MPLX	5,739,501	$210,755	12/31/2023
Clearbridge Investments LLC	4,999,259	$183,573	12/31/2023
MPLX	4,999,259	$183,573	12/31/2023
Energy Income Partners LLC	4,969,707	$182,488	12/31/2023
MPLX	4,969,707	$182,488	12/31/2023
Brookfield Asset Management Inc.	4,415,491	$162,137	12/31/2023
MPLX	4,415,491	$162,137	12/31/2023
Barclays PLC	3,250,948	$119,375	12/31/2023
MPLX	3,250,948	$119,375	12/31/2023
CIBC Private Wealth Group LLC	3,028,327	$111,200	12/31/2023
MPLX	3,028,327	$111,200	12/31/2023
ING Groep NV	2,740,500	$100,631	12/31/2023
MPLX	2,740,500	$100,631	12/31/2023
Miller Howard Investments Inc. NY	2,385,733	$99,151	03/31/2024
MPLX	2,385,733	$99,151	03/31/2024
Duff & Phelps Investment Management Co.	1,976,693	$72,584	12/31/2023
MPLX	1,976,693	$72,584	12/31/2023
Nomura Holdings Inc.	1,831,500	$67,253	12/31/2023
MPLX	1,831,500	$67,253	12/31/2023
Westwood Holdings Group Inc.	1,793,525	$65,858	12/31/2023
MPLX	1,793,525	$65,858	12/31/2023
Citigroup Inc.	1,782,622	$65,458	12/31/2023
MPLX	1,782,622	$65,458	12/31/2023
Infrastructure Capital Advisors LLC	1,747,509	$64,169	12/31/2023
MPLX	1,747,509	$64,169	12/31/2023
Eagle Global Advisors LLC	1,651,637	$60,648	12/31/2023
MPLX	1,651,637	$60,648	12/31/2023
AlphaCore Capital LLC	1,569,154	$57,619	12/31/2023
MPLX	1,569,154	$57,619	12/31/2023
Amundi	1,504,722	$56,141	12/31/2023
MPLX	1,504,722	$56,141	12/31/2023
Deutsche Bank AG	1,513,880	$55,590	12/31/2023
MPLX	1,513,880	$55,590	12/31/2023
Fractal Investments LLC	1,461,951	$53,683	12/31/2023
MPLX	1,461,951	$53,683	12/31/2023
Jennison Associates LLC	1,437,041	$52,768	12/31/2023
MPLX	1,437,041	$52,768	12/31/2023
Epoch Investment Partners Inc.	1,307,187	$48,000	12/31/2023
MPLX	1,307,187	$48,000	12/31/2023
Cushing Asset Management LP	1,197,122	$43,958	12/31/2023
MPLX	1,197,122	$43,958	12/31/2023
BNP Paribas Arbitrage SA	1,186,633	$43,573	12/31/2023
MPLX	1,186,633	$43,573	12/31/2023
Stifel Financial Corp	1,183,375	$43,453	12/31/2023
MPLX	1,183,375	$43,453	12/31/2023
Wells Fargo & Company MN	1,163,715	$42,732	12/31/2023
MPLX	1,163,715	$42,732	12/31/2023
RR Advisors LLC	1,099,000	$40,371	12/31/2023
MPLX	1,099,000	$40,371	12/31/2023
Longfellow Investment Management Co. LLC	1,093,138	$40,140	12/31/2023
MPLX	1,093,138	$40,140	12/31/2023
Beach Investment Counsel Inc. PA	899,089	$37,366	03/31/2024
MPLX	899,089	$37,366	03/31/2024
Progeny 3 Inc.	954,759	$35,059	12/31/2023
MPLX	954,759	$35,059	12/31/2023
Citadel Advisors LLC		$27,119	12/31/2023
Call	766,500	$28,146	12/31/2023
Put	365,100	$13,406	12/31/2023
MPLX	337,119	$12,379	12/31/2023
Natixis	726,458	$26,676	12/31/2023
MPLX	726,458	$26,676	12/31/2023
Mariner LLC	694,550	$25,504	12/31/2023
MPLX	694,550	$25,504	12/31/2023
Royal Bank of Canada	664,570	$24,403	12/31/2023
MPLX	664,570	$24,403	12/31/2023
Appaloosa LP	660,000	$24,235	12/31/2023
MPLX	660,000	$24,235	12/31/2023
Allianz Asset Management GmbH	637,100	$23,394	12/31/2023
MPLX	637,100	$23,394	12/31/2023
TPG GP A LLC	519,986	$19,094	12/31/2023
MPLX	519,986	$19,094	12/31/2023
Cohen & Steers Inc.	514,959	$18,909	12/31/2023
MPLX	514,959	$18,909	12/31/2023
HighTower Advisors LLC	511,001	$18,766	12/31/2023
MPLX	511,001	$18,766	12/31/2023
Raymond James Financial Services Advisors Inc.	500,536	$18,380	12/31/2023
MPLX	500,536	$18,380	12/31/2023
Tortoise Index Solutions LLC	463,273	$17,011	12/31/2023
MPLX	463,273	$17,011	12/31/2023

See All: Funds Holding MPLX
See Details: Top 10 Hedge Funds Holding MPLX
Also See: MPLX Insider Buying
Also See: MPLX Holdings Changes

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