MPLX LP
MPLX
57.05
-0.72
-1.25%
MPLX LP
US · MPLX
#380 by market cap
Listed 1970
57.05
-0.72
-1.25%
Live - 5344 symbols - heartbeat 48s ago
· 2026-10-08 07:00
Pre-market
57.10
+0.09%
After-hours
57.10
+0.09%
- Market cap
- 57.84B
- P/E (TTM)i
- 12.27
- P/Bi
- 4.12
- EPSi
- 4.82
- Div yieldi
- 7.34%
- 52W posi
- 79%
Reader sentiment
Are you bullish or bearish on MPLX?
Anonymous reader poll. Unscientific, not investment advice.
✦ Quant Ownership Signal how this is computed
Distributing
- The number of reporting institutions decreased by 1 in the most recent period (2026/Q3).
- Total institutional ownership fell 0.2 percentage points.
Institutional ownership
- Held by institutions
- 83.31% -0.15pp
- Institutions
- 671 -1
- As of
- 2026/Q3 vs. prior period
Ownership vs. money flow
AlignedInstitutions trimmed shares last reporting period, and the stock has seen net outflows in main-fund flow over the last 20 trading sessions - the two line up.
Institutional ownership changes are reported quarterly with a lag; fund-flow data is daily. Treat this as a directional cross-check, not a precise timing signal.
Holder types
Public Company65.55%
Mutual Fund16.15%
VC/PE Fund0.72%
Private Company0.60%
Individual/Insider0.15%
Family Office/Trust0.11%
Hedge Fund0.11%
Other16.56%
Top holders as of 2026-02-01
Marathon Petroleum Corporation
63.86% · 647.42M sh
ALPS Advisors, Inc.
2.82% · 28.60M sh
Invesco Ltd.
1.80% · 18.24M sh
Harvest Fund Advisors LLC
1.28% · 12.96M sh
Tortoise Capital Advisors, L.L.C.
1.04% · 10.50M sh
Other
29.21%
Goldman Sachs Asset Management, L.P.
0.96% · 9.74M sh
Mirae Asset Global Investments Co., Ltd
0.79% · 8.01M sh
Kayne Anderson Capital Advisors, L.P.
0.58% · 5.86M sh
Energy Income Partners LLC
0.53% · 5.38M sh
UBS Asset Management
0.52% · 5.26M sh
Bar length is relative to the largest holder shown here, not to 100% of the company.
Insiders
50 filings tracked · 39 buys · 9 sells
| Name | Role | Stake |
|---|---|---|
| Frank Semple | Independent Director of MPLX GP LLC | 0.05% |
| Michael Hennigan | Executive Chairman of the Board of MPLX GP LLC | 0.02% |
| Maryann Mannen | President, CEO & Director of MPLX GP LLC | 0.02% |
| Garry Peiffer | Independent Non-Executive Director of MPLX GP LLC | 0.01% |
| John Surma | Independent Director of MPLX GP LLC | 0.01% |
| Gregory Floerke | Executive VP & COO of MPLX GP LLC | 0.01% |
| Christopher Helms | Lead Independent Director of MPLX GP LLC | 0.01% |
| John Stice | Independent Non-Executive Director of MPLX GP LLC | 0.01% |
| Molly Benson | Chief Legal Officer & Corporate Secretary of MPLX GP LLC | 0.00% |
| Shawn Lyon | Senior Vice President of Logistics & Storage - MPLX GP LLC | 0.00% |
Insider transactions most recent Form 4 filings
| Date | Name | Role | Type | Shares | Price |
|---|---|---|---|---|---|
| 2026-08-13 | Christopher Helms | Lead Independent Director of MPLX GP LLC | Other Acquisition | +1,336 | -- |
| 2026-08-13 | Frank Semple | Independent Director of MPLX GP LLC | Other Acquisition | +1,072 | -- |
| 2026-08-13 | John Surma | Independent Director of MPLX GP LLC | Other Acquisition | +1,563 | -- |
| 2026-08-13 | Christine Breves | Director of MPLX GP LLC | Other Acquisition | +218 | -- |
| 2026-08-13 | Ray Walker | Director of MPLX GP LLC | Other Acquisition | +81 | -- |
| 2026-08-13 | Garry Peiffer | Independent Non-Executive Director of MPLX GP LLC | Other Acquisition | +1,232 | -- |
| 2026-08-13 | John Stice | Independent Non-Executive Director of MPLX GP LLC | Other Acquisition | +982 | -- |
| 2026-05-14 | Christopher Helms | Lead Independent Director of MPLX GP LLC | Other Acquisition | +1,415 | -- |
| 2026-05-14 | Frank Semple | Independent Director of MPLX GP LLC | Other Acquisition | +1,194 | -- |
| 2026-05-14 | John Surma | Independent Director of MPLX GP LLC | Other Acquisition | +1,656 | -- |
| 2026-05-14 | Christine Breves | Director of MPLX GP LLC | Other Acquisition | +276 | -- |
| 2026-05-14 | Ray Walker | Director of MPLX GP LLC | Other Acquisition | +78 | -- |
| 2026-05-14 | Garry Peiffer | Independent Non-Executive Director of MPLX GP LLC | Other Acquisition | +1,303 | -- |
| 2026-05-14 | John Stice | Independent Non-Executive Director of MPLX GP LLC | Other Acquisition | +1,098 | -- |
| 2026-04-29 | Christopher Helms | Lead Independent Director of MPLX GP LLC | Other Acquisition | +2,696 | -- |
| 2026-04-29 | Frank Semple | Independent Director of MPLX GP LLC | Other Acquisition | +3,028 | -- |
| 2026-04-29 | John Surma | Independent Director of MPLX GP LLC | Other Acquisition | +3,028 | -- |
| 2026-04-29 | Christine Breves | Director of MPLX GP LLC | Other Acquisition | +2,696 | -- |
| 2026-04-29 | Ray Walker | Director of MPLX GP LLC | Other Acquisition | +2,696 | -- |
| 2026-04-29 | Garry Peiffer | Independent Non-Executive Director of MPLX GP LLC | Other Acquisition | +2,696 | -- |
Form 4 filings, most recent per company. "Other Derivative Acquisition" rows are mostly RSU/option vesting, not open-market buying - the Type column says which.
Quote time 2026-10-08 07:00:13 · For reference only, not investment advice and not tailored to your situation.