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MPLX Lp (MPLX)

MPLX Lp at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

MPLX Lp (MPLX) is a Oil & Gas Midstream company based in US with a market capitalization of $55.8B. Revenue grew 8.4% year-over-year and the company generated $4.1B in free cash flow. This page tracks MPLX's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 6.2K employees · IPO Oct 26, 2012

Valuation

Valuation & price

$54.77 · as of May 17, 2026 · -7.4% vs 52w high

11.4

P/E ratio

Latest-FY diluted EPS

3.90

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$59.14$53.47$47.80Jul 25Dec 25Jul 26Jul 7, 25$50.74Jul 9, 25$50.76Jul 11, 25$50.66Jul 15, 25$50.71Jul 17, 25$50.52Jul 21, 25$50.26Jul 23, 25$50.93Jul 25, 25$50.95Jul 29, 25$51.77Jul 31, 25$52.50Aug 4, 25$52.71Aug 6, 25$51.31Aug 11, 25$50.20Aug 13, 25$49.70Aug 15, 25$50.00Aug 19, 25$49.63Aug 21, 25$50.48Aug 25, 25$50.33Aug 27, 25$50.04Aug 29, 25$50.87Sep 3, 25$50.88Sep 5, 25$50.51Sep 9, 25$50.03Sep 11, 25$50.84Sep 16, 25$51.06Sep 18, 25$50.75Sep 22, 25$50.04Sep 24, 25$51.12Sep 26, 25$51.28Sep 30, 25$49.95Oct 2, 25$49.51Oct 6, 25$49.17Oct 8, 25$48.84Oct 10, 25$47.80Oct 14, 25$48.95Oct 16, 25$48.53Oct 21, 25$49.61Oct 23, 25$50.88Oct 27, 25$50.82Oct 29, 25$50.29Oct 31, 25$50.76Nov 4, 25$51.20Nov 6, 25$51.53Nov 10, 25$51.78Nov 12, 25$52.47Nov 14, 25$53.21Nov 18, 25$52.87Nov 20, 25$53.48Nov 25, 25$53.46Nov 28, 25$54.33Dec 2, 25$53.90Dec 4, 25$55.88Dec 8, 25$55.55Dec 10, 25$55.15Dec 12, 25$54.85Dec 16, 25$53.99Dec 18, 25$53.21Dec 22, 25$53.76Dec 24, 25$54.03Dec 29, 25$54.01Jan 2, 26$53.87Jan 6, 26$52.22Jan 8, 26$52.55Jan 12, 26$53.84Jan 14, 26$55.46Jan 16, 26$56.58Jan 21, 26$55.62Jan 23, 26$55.17Jan 27, 26$55.73Jan 29, 26$56.24Feb 2, 26$55.32Feb 4, 26$55.59Feb 9, 26$55.01Feb 11, 26$55.70Feb 13, 26$56.83Feb 18, 26$56.70Feb 20, 26$58.19Feb 24, 26$58.89Feb 26, 26$58.66Mar 2, 26$59.14Mar 4, 26$58.90Mar 6, 26$58.65Mar 10, 26$58.02Mar 12, 26$58.36Mar 17, 26$58.34Mar 19, 26$58.28Mar 23, 26$58.65Mar 25, 26$58.89Mar 27, 26$58.13Mar 31, 26$57.07Apr 2, 26$55.90Apr 7, 26$55.24Apr 9, 26$56.36Apr 13, 26$56.07Apr 15, 26$54.77Apr 17, 26$55.88Apr 22, 26$55.70Apr 24, 26$55.34Apr 28, 26$55.08Apr 30, 26$56.27May 4, 26$57.17May 6, 26$55.66May 8, 26$54.00May 12, 26$54.39May 14, 26$55.57May 18, 26$55.44May 20, 26$55.44May 22, 26$56.47May 28, 26$55.49Jun 1, 26$54.99Jun 3, 26$55.26Jun 5, 26$56.48Jun 9, 26$56.50Jun 11, 26$56.49Jun 15, 26$55.67Jun 17, 26$55.91Jun 22, 26$56.90Jun 24, 26$56.23Jun 26, 26$56.52Jul 2, 26$57.16
$47.8052-week range$59.17
Loading valuation history…

Fundamentals

Key fundamentals

$55.8B

Market cap

8.4%

Revenue growth (YoY)

45.2%

Gross margin

$4.1B

Free cash flow (USD)

$24B

Net debt

0.3%

Share dilution

3/5

Graham criteria passed

Defensive-investor screen

Energy

Sector

Trajectory

Long-term trends

Revenue by year

2016 → 2025

FY 2016$3.0BFY 2017$3.7BFY 2018$6.7BFY 2019$8.6BFY 2020$8.4BFY 2021$9.6BFY 2022$10.5BFY 2023$10.4BFY 2024$10.9BFY 2025$11.8B
$3B$11.8B

Free cash flow by year

2016 → 2025

FY 2016$82.0MFY 2017$496.0MFY 2018$907.0MFY 2019$1.7BFY 2020$3.3BFY 2021$4.4BFY 2022$4.2BFY 2023$4.5BFY 2024$4.9BFY 2025$4.1B
$82M$4.1B

Gross margin by year

2021 → 2025

FY 202142.4%FY 202240.7%FY 202343.7%FY 202444.2%FY 202545.2%
42.4%45.2%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 5, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • FinancingSecurities RegistrationMay 6, 2026Filing
  • 8-K eventEarnings ReleaseMay 5, 2026Filing
  • Quarterly report10-Q FiledMay 5, 2026Filing
  • 8-K eventDebt RefinancingApr 13, 2026Filing

Questions

Frequently asked questions

What is MPLX Lp's market cap?

MPLX Lp (MPLX) has a market capitalization of $55.8B.

What is MPLX's P/E ratio?

MPLX trades at a price-to-earnings ratio of 11.4, based on its latest fiscal-year diluted earnings per share and the most recent cached price.

What is MPLX's price-to-book (P/B) ratio?

MPLX trades at 3.90 times book value per share.

Are insiders buying MPLX stock?

SEC Form 4 filings show no open-market insider buys at MPLX Lp in the last 90 days (0 sells).

Same arena

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.