Mariner
MPLX icon

Mariner’s MPLX MPLX Stock Holding History

Mariner’s Portfolio MPLX Stock Details MPLX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$65.8M Sell
1,152,602
-674
-0.1% -$38.2K 0.08% 211
2025
Q4 		$61.6M Buy
1,153,276
+36,377
+3% +$1.9M 0.07% 222
2025
Q3 		$55.8M Sell
1,116,899
-417
-0% -$21.2K 0.07% 225
2025
Q2 		$57.6M Buy
1,117,316
+50,568
+5% +$2.57M 0.08% 211
2025
Q1 		$57.1M Buy
1,066,748
+12,473
+1% +$653K 0.1% 193
2024
Q4 		$50.5M Sell
1,054,275
-4,144
-0.4% -$193K 0.08% 207
2024
Q3 		$47.1M Sell
1,058,419
-3,633
-0.3% -$155K 0.08% 212
2024
Q2 		$45.2M Buy
1,062,052
+49,701
+5% +$2.05M 0.09% 208
2024
Q1 		$42.1M Buy
1,012,351
+317,801
+46% +$12.3M 0.09% 213
2023
Q4 		$25.5M Sell
694,550
-855
-0.1% -$30.7K 0.06% 253
2023
Q3 		$24.7M Buy
695,405
+3,016
+0.4% +$105K 0.07% 251
2023
Q2 		$23.5M Buy
692,389
+20,869
+3% +$713K 0.06% 259
2023
Q1 		$23.1M Sell
671,520
-1,204
-0.2% -$41.3K 0.07% 262
2022
Q4 		$22.1M Sell
672,724
-37,223
-5% -$1.22M 0.07% 265
2022
Q3 		$21.3M Buy
709,947
+981
+0.1% +$30.8K 0.09% 222
2022
Q2 		$20.7M Buy
708,966
+39,802
+6% +$1.27M 0.08% 229
2022
Q1 		$22.2M Sell
669,164
-25,094
-4% -$811K 0.08% 227
2021
Q4 		$20.5M Sell
694,258
-603,514
-47% -$18.1M 0.09% 215
2021
Q3 		$36.9M Buy
1,297,772
+17,112
+1% +$485K 0.19% 132
2021
Q2 		$37.9M Buy
1,280,660
+568,481
+80% +$16.1M 0.24% 119
2021
Q1 		$18.3M Sell
712,179
-13,658
-2% -$335K 0.13% 171
2020
Q4 		$15.7M Sell
725,837
-113,986
-14% -$2.25M 0.12% 174
2020
Q3 		$13.2M Sell
839,823
-20,148
-2% -$364K 0.12% 171
2020
Q2 		$14.9M Buy
859,971
+75,334
+10% +$1.29M 0.15% 154
2020
Q1 		$9.12M Buy
784,637
+9,299
+1% +$191K 0.11% 176
2019
Q4 		$19.7M Buy
775,338
+12,988
+2% +$331K 0.21% 138
2019
Q3 		$21.4M Buy
762,350
+79,493
+12% +$2.33M 0.26% 108
2019
Q2 		$22M Sell
682,857
-8,290
-1% -$264K 0.26% 105
2019
Q1 		$22.7M Sell
691,147
-8,688
-1% -$292K 0.32% 85
2018
Q4 		$21.2M Sell
699,835
-38,658
-5% -$1.29M 0.38% 74
2018
Q3 		$25.6M Buy
738,493
+3,634
+0.5% +$130K 0.66% 31
2018
Q2 		$25.1M Buy
734,859
+7,718
+1% +$268K 0.71% 25
2018
Q1 		$24M Buy
727,141
+139,757
+24% +$5.01M 0.86% 23
2017
Q4 		$20.8M Buy
587,384
+10,000
+2% +$352K 0.81% 28
2017
Q3 		$20.2M Hold
577,384
– – 0.91% 22
2017
Q2 		$19.3M Sell
577,384
-49,889
-8% -$1.73M 0.91% 21
2017
Q1 		$22.6M Hold
627,273
– – 0.99% 21
2016
Q4 		$21.7M Sell
627,273
-140,187
-18% -$4.55M 1% 23
2016
Q3 		$26M Buy
767,460
+280,676
+58% +$9.26M 1.26% 12
2016
Q2 		$16.4M Sell
486,784
-145
-0% -$4.6K 0.89% 24
2016
Q1 		$14.5M Sell
486,929
-2,144
-0.4% -$58.2K 0.86% 23
2015
Q4 		$19.2M Buy
+489,073
New +$18.5M 1.23% 16

Other funds holding MPLX

AA
ALPS Advisors Denver, Colorado $21.3B AUM 21.71% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return
Blackstone Inc
Blackstone Inc New York $25.6B AUM 26.83% 1-Year Est. Return
TCA
Tortoise Capital Advisors Overland Park, Kansas $9.6B AUM 19.53% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $871B AUM 31.28% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return
KACA
Kayne Anderson Capital Advisors Los Angeles, California $5.22B AUM 17.11% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
CCM
Chickasaw Capital Management Memphis, Tennessee $2.78B AUM 20.87% 1-Year Est. Return
EIP
Energy Income Partners Westport, Connecticut $6.22B AUM 18.97% 1-Year Est. Return

Mariner's MPLX Position: Q1 2026 in Review

Mariner reduced its MPLX (MPLX) stake by 0.06% in Q1 2026, selling an estimated $38.2K and leaving 1,152,602 shares worth $65.8M. The position accounts for 0.08% of the portfolio, ranked #211.

Mariner first reported a position in MPLX in Q4 2015 and has held it in 42 quarters since. 644 funds tracked by Wall St. Rank hold MPLX as of Q1 2026.

  • Mariner held 1,152,602 shares of MPLX worth $65.8M as of Q1 2026.
  • Mariner sold 674 MPLX shares in Q1 2026, an estimated $38.2K.
  • MPLX made up 0.08% of Mariner's portfolio in Q1 2026, its #211 holding.
  • Mariner first reported a position in MPLX in Q4 2015 and has held it in 42 quarters since.
  • 644 funds tracked by Wall St. Rank held MPLX as of Q1 2026.

Based on Mariner's 13F filing for Q1 2026, filed 13 May 2026.