As of 30 Sep 2025, 572 institutional investors reported holding 209,997,586 shares of MPLX LP - COM UNIT REP LTD (MPLX).
| Period | Reported Shares, Excl. Options | Value, Excl. Options | Value Change | Price (Median) | Investors |
|---|---|---|---|---|---|
| 2025 Q4 | 8,368,770 | $446,479,163 | +$16,182,122 | $53.37 | 61 |
| 2025 Q3 | 209,997,586 | $10,490,526,954 | -$319,439,792 | $49.95 | 572 |
| 2025 Q2 | 216,682,323 | $11,160,989,501 | +$2,028,901 | $51.51 | 569 |
| 2025 Q1 | 217,765,452 | $11,626,105,367 | +$3,639,014 | $53.52 | 561 |
| 2024 Q4 | 218,055,161 | $10,439,165,998 | -$653,330,216 | $47.86 | 525 |
| 2024 Q3 | 231,975,299 | $10,312,310,909 | -$246,295,651 | $44.46 | 501 |
| 2024 Q2 | 238,258,841 | $10,145,108,192 | +$338,322,889 | $42.59 | 489 |
| 2024 Q1 | 225,523,707 | $9,320,521,937 | +$48,023,525 | $41.56 | 477 |
| 2023 Q4 | 229,454 | $8,425,551 | +$116,219 | $36.72 | 3 |
| 2023 Q3 | 229,830,096 | $8,175,887,761 | +$158,134,600 | $35.57 | 391 |
| 2023 Q2 | 224,499,098 | $7,620,280,511 | -$210,117,240 | $33.94 | 362 |
| 2023 Q1 | 229,903,224 | $7,905,531,778 | +$194,896,980 | $34.45 | 373 |
| 2022 Q4 | 224,007,526 | $7,355,666,744 | -$169,922,834 | $32.84 | 349 |
| 2022 Q3 | 232,165,339 | $6,973,873,182 | -$194,492,601 | $30.01 | 336 |
| 2022 Q2 | 239,083,403 | $6,970,370,270 | -$214,062,603 | $29.15 | 336 |
| 2022 Q1 | 247,217,736 | $8,202,366,597 | -$207,412,777 | $33.18 | 345 |
| 2021 Q4 | 252,581,548 | $7,478,562,617 | -$388,014,176 | $29.59 | 338 |
| 2021 Q3 | 263,749,752 | $7,513,707,919 | -$379,965,233 | $28.47 | 307 |
| 2021 Q2 | 277,020,908 | $8,198,768,673 | -$264,758,200 | $29.61 | 298 |
| 2021 Q1 | 286,165,831 | $7,336,374,813 | -$299,903,105 | $25.63 | 303 |
| 2020 Q4 | 297,853,879 | $6,453,751,340 | -$71,951,306 | $21.65 | 288 |
| 2020 Q3 | 291,159,115 | $4,590,418,340 | -$43,312,828 | $15.74 | 270 |
| 2020 Q2 | 305,236,742 | $5,275,216,596 | +$489,190,251 | $17.28 | 271 |
| 2020 Q1 | 301,508,471 | $3,503,718,761 | -$176,089,995 | $11.62 | 281 |
| 2019 Q4 | 324,755,401 | $8,271,885,728 | -$280,820,569 | $25.46 | 321 |
| 2019 Q3 | 334,567,631 | $9,370,788,541 | +$2,150,779,098 | $28.01 | 331 |
| 2019 Q2 | 243,749,117 | $7,843,428,920 | +$290,551,811 | $32.19 | 325 |
| 2019 Q1 | 244,966,213 | $8,057,319,019 | -$51,405,280 | $32.89 | 318 |
| 2018 Q4 | 247,577,857 | $7,502,936,980 | +$26,494,469 | $30.30 | 322 |
| 2018 Q3 | 246,290,489 | $8,541,397,407 | +$19,818,923 | $34.68 | 319 |
| 2018 Q2 | 247,498,178 | $8,451,505,627 | +$330,065,456 | $34.14 | 318 |
| 2018 Q1 | 238,071,978 | $7,864,990,646 | -$826,868,125 | $33.04 | 315 |
| 2017 Q4 | 253,013,584 | $8,974,843,334 | +$255,657,383 | $35.47 | 304 |
| 2017 Q3 | 265,273,321 | $9,286,304,257 | +$292,688,106 | $35.01 | 293 |
| 2017 Q2 | 257,201,121 | $8,590,751,366 | +$353,542,170 | $33.40 | 307 |
| 2017 Q1 | 246,380,611 | $8,852,978,029 | +$35,975,477 | $36.08 | 307 |
| 2016 Q4 | 246,831,218 | $8,533,039,861 | +$479,889,372 | $34.62 | 290 |
| 2016 Q3 | 232,472,886 | $7,865,107,462 | +$708,250,612 | $33.86 | 277 |
| 2016 Q2 | 210,390,622 | $7,075,173,717 | +$85,493,604 | $33.63 | 275 |
| 2016 Q1 | 207,387,881 | $6,156,491,577 | +$242,532,337 | $29.69 | 265 |
| 2015 Q4 | 198,045,264 | $7,723,590,281 | +$6,101,335,924 | $39.33 | 299 |
| 2015 Q3 | 24,768,156 | $946,311,341 | +$93,241,852 | $38.21 | 114 |
| 2015 Q2 | 21,749,253 | $1,552,471,607 | +$13,651,064 | $71.38 | 113 |
| 2015 Q1 | 21,762,492 | $1,594,324,179 | +$12,608,211 | $73.26 | 106 |
| 2014 Q4 | 21,215,336 | $1,559,047,043 | +$204,693,319 | $73.49 | 104 |
| 2014 Q3 | 18,388,862 | $1,083,255,000 | -$16,333,106 | $58.94 | 83 |
| 2014 Q2 | 18,685,259 | $1,204,818,640 | -$23,604,363 | $64.50 | 79 |
| 2014 Q1 | 19,244,749 | $943,087,657 | +$17,828,396 | $48.99 | 74 |