MPLX LP - Limited Partnership
US ˙ NYSE ˙ US55336V1008

SecurityMPLX / MPLX LP - Limited Partnership
InstitutionAlps Advisors Inc
Latest Disclosed Ownership23,994,554 shares
Ownership 5.90%
Alps Advisors Inc ownership in MPLX / MPLX LP - Limited Partnership

2018-02-06 - Alps Advisors Inc has filed an SC 13G/A form with the Securities and Exchange Commission (SEC) disclosing ownership of 23,994,554 shares of MPLX LP - Limited Partnership (US:MPLX). This represents 5.9 percent ownership of the company. In their previous filing dated 2017-01-26 , Alps Advisors Inc had reported owning 18,146,214 shares, indicating an increase of 32.23 percent.

Institutional Ownership: 13D/G Filings

This table shows a history of the 13D/G filings made by the investor and/or investor group. Note that the share values in this table are not directly comparable to any numbers shown in the 13F table (if any).

File
Date
Effective
Date
Form Prev
Shares
Latest
Shares
ΔShares
(Percent)
Ownership
(Percent)
ΔOwnership
(Percent)
2018-02-06 2018-02-06 13G/A 18,146,214 23,994,554 32.23 5.90 13.24
2017-01-26 2017-01-26 13G/A 16,813,973 18,146,214 7.92 5.21 -8.11
2016-02-03 2016-02-03 13G 16,813,973 5.67

Important Note: One of the primary uses of the 13D/G filings is to evaluate the ability of a firm to control a company (ie, the "beneficial ownership"). To that end, firms are required to report not just direct holdings in companies, but indirect holdings that they control. For investment firms, these indirect holdings can include shares in funds they manage, advisory accounts, and in the case of activist campaigns, pledged votes. Therefore, share counts listed in 13D/G filings can differ significantly than share counts listed in 13F filings.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-08 2026-03-31 13F MPLX COM UNIT REP LTD 55336V100 27,070,962 26,641,396 6,201.93 1,544,940 6,639.10 6.6725
2026-02-12 2025-12-31 13F MPLX COM UNIT REP LTD 55336V100 429,566 -25,980,088 -98.37 22,926 -98.26 0.1335
2025-11-05 2025-09-30 13F MPLX COM UNIT REP LTD 55336V100 26,409,654 325,451 1.25 1,319,162 -1.82 7.3457
2025-08-11 2025-06-30 13F MPLX COM UNIT REP LTD 55336V100 26,084,203 300,501 1.17 1,343,597 -2.63 7.7502
2025-04-30 2025-03-31 13F MPLX COM UNIT REP LTD 55336V100 25,783,702 -216,996 -0.83 1,379,944 10.89 8.0020
2025-02-13 2024-12-31 13F MPLX COM UNIT REP LTD 55336V100 26,000,698 378,568 1.48 1,244,393 9.24 7.8535
2024-11-12 2024-09-30 13F MPLX COM UNIT REP LTD 55336V100 25,622,130 -539,652 -2.06 1,139,160 2.24 7.6240
2024-08-13 2024-06-30 13F MPLX COM UNIT REP LTD 55336V100 26,161,782 456,966 1.78 1,114,230 4.30 7.6483
2024-05-14 2024-03-31 13F MPLX COM UNIT REP LTD 55336V100 25,704,816 93,547 0.37 1,068,292 13.59 7.5623
2024-02-14 2023-12-31 13F MPLX COM UNIT REP LTD 55336V100 25,611,269 -3,160,524 -10.98 940,446 -8.11 7.3945
2023-11-14 2023-09-30 13F MPLX COM UNIT REP LTD 55336V100 28,771,793 4,579,152 18.93 1,023,413 24.64 8.4933
2023-08-14 2023-06-30 13F MPLX COM UNIT REP LTD 55336V100 24,192,641 543,117 2.30 821,098 0.78 7.1329
2023-05-10 2023-03-31 13F MPLX COM UNIT REP LTD 55336V100 23,649,524 2,975,040 14.39 814,726 20.00 7.1985
2023-02-14 2022-12-31 13F MPLX COM UNIT REP LTD 55336V100 20,674,484 394,336 1.94 678,950 11.56 6.0564
2022-11-14 2022-09-30 13F MPLX COM UNIT REP LTD 55336V100 20,280,148 58,358 0.29 608,607 3.25 5.7585
2022-08-15 2022-06-30 13F/A-1 MPLX COM UNIT REP LTD 55336V100 20,221,790 760,557 3.91 589,465 -8.71 5.7313
2022-08-11 2022-06-30 13F MPLX COM UNIT REP LTD 55336V100 20,221,790 760,557 589,465 5.6423
2022-05-16 2022-03-31 13F MPLX COM UNIT REP LTD 55336V100 19,461,233 2,307,807 13.45 645,724 27.22 7.0047
2022-02-09 2021-12-31 13F MPLX COM UNIT REP LTD 55336V100 17,153,426 -417,804 -2.38 507,570 1.46 5.7109
2021-11-15 2021-09-30 13F MPLX COM UNIT REP LTD 55336V100 17,571,230 -2,454,687 -12.26 500,253 -15.64 4.8202
2021-08-11 2021-06-30 13F MPLX COM UNIT REP LTD 55336V100 20,025,917 26,200 0.13 592,967 15.68 5.2442
2021-05-07 2021-03-31 13F MPLX COM UNIT REP LTD 55336V100 19,999,717 -110,427 -0.55 512,593 17.73 5.0064
2021-02-03 2020-12-31 13F MPLX COM UNIT REP LTD 55336V100 20,110,144 1,115,149 5.87 435,385 45.62 4.9031
2020-11-05 2020-09-30 13F/A-1 MPLX COM UNIT REP LTD 55336V100 18,994,995 -3,280,574 -14.73 298,981 -22.33 4.4014
2020-11-04 2020-09-30 13F MPLX COM UNIT REP LTD 55336V100 18,994,995 -3,280,574 298,981 3,831,799.7044
2020-08-05 2020-06-30 13F MPLX COM UNIT REP LTD 55336V100 22,275,569 -8,126,821 -26.73 384,922 8.96 5.1607
2020-05-06 2020-03-31 13F MPLX COM UNIT REP LTD 55336V100 30,402,390 -697,258 -2.24 353,276 -55.38 5.4654
2020-02-07 2019-12-31 13F MPLX COM UNIT REP LTD 55336V100 31,099,648 1,832,725 6.26 791,797 -3.41 6.1717
2019-11-04 2019-09-30 13F MPLX COMMON STOCK 55336V100 29,266,923 1,544,357 5.57 819,767 -8.14 6.3823
2019-08-07 2019-06-30 13F MPLX COMMON STOCK 55336V100 27,722,566 945,913 3.53 892,389 1.33 6.6052
2019-05-01 2019-03-31 13F MPLX COMMON STOCK 55336V100 26,776,653 -452,253 -1.66 880,684 6.74 6.2355
2019-02-04 2018-12-31 13F MPLX COMMON STOCK 55336V100 27,228,906 1,802,231 7.09 825,036 -6.44 6.4023
2018-10-25 2018-09-30 13F MPLX COMMON STOCK 55336V100 25,426,675 1,382,018 5.75 881,797 7.42 5.7852
2018-08-02 2018-06-30 13F/A-2 MPLX COMMON STOCK 55336V100 24,044,657 1,373,206 6.06 820,885 9.59 5.3543
2018-07-31 2018-06-30 13F/A-1 MPLX COMMON STOCK 55336V100 23,994,554 -50,103 851,087 5.4420
2018-07-25 2018-06-30 13F MPLX COMMON STOCK 55336V100 23,994,554 1,323,103 851,087
2018-05-01 2018-03-31 13F MPLX COMMON STOCK 55336V100 22,671,451 -1,323,103 -5.51 749,065 -11.99 5.9607
2018-02-20 2017-12-31 13F/A-1 MPLX COMMON STOCK 55336V100 23,994,554 558,887 2.38 851,087 3.73 5.8922
2018-02-05 2017-12-31 13F MPLX COMMON STOCK 55336V100 23,994,554 558,887 851,087
2017-11-03 2017-09-30 13F MPLX COMMON STOCK 55336V100 23,435,667 3,379,395 16.85 820,483 22.48 5.8147
2017-08-03 2017-06-30 13F MPLX COMMON STOCK 55336V100 20,056,272 1,015,105 5.33 669,879 2.97 4.6735
2017-05-12 2017-03-31 13F MPLX COMMON STOCK 55336V100 19,041,167 896,508 4.94 650,573 3.57 4.4863
2017-01-24 2016-12-31 13F MPLX Common Stock 55336V100 18,144,659 1,910,692 11.77 628,168 14.28 4.6322
2016-11-02 2016-09-30 13F MPLX Common Stock 55336V100 16,233,967 649,169 4.17 549,682 4.88 4.4864
2016-07-27 2016-06-30 13F MPLX Common Stock 55336V100 15,584,798 -153,599 -0.98 524,117 12.17 4.6441
2016-05-10 2016-03-31 13F MPLX Common Stock 55336V100 15,738,397 -1,074,021 -6.39 467,273 -29.33 4.8248
2016-02-05 2015-12-31 13F MPLX Common Stock 55336V100 16,812,418 16,812,418 0.00 661,232 6.4523
2015-11-13 2015-09-30 13F MPLX Common Stock 55336V100 0 -6,522 -100.00 0 -100.00
2015-08-12 2015-06-30 13F MPLX Common Stock 55336V100 6,522 6,522 466 0.0040
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.