How many insider trades does FilingIQ track for MPLX?

FilingIQ tracks 956 Form 4 insider transactions for MPLX (MPLX LP), covering filings from May 15, 2015 onwards. 35 of those were filed in the last 90 days.

Are MPLX insiders net buyers or net sellers?

Across the full Form 4 history for MPLX, 22 transactions (2%) were open-market purchases and 33 (3%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.

Where does MPLX insider data come from?

Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.

What sector is MPLX in?

MPLX LP (MPLX) is classified in the Energy sector, specifically Oil & Gas Midstream, with a current market capitalisation of $59.32B.

MPLX insider trading

NYSE Energy

MPLX LP — scored insider trade history from SEC Form 4 filings, parsed and contextualised by FilingIQ.

Total Form 4 trades

956

Last 90 days

Buys / sells

2% / 3%

Market cap

$59.32B

About MPLX LP

MPLX LP owns and operates midstream energy infrastructure and logistics assets primarily in the United States. It operates in two segments, Crude Oil and Products Logistics; and Natural Gas and NGL Services. The company is involved in the gathering, processing, and transportation of natural gas; gathering, transportation, fractionation, storage, and marketing of natural gas liquids; gathering, storage, transportation, and distribution of crude oil and refined products, as well as other hydrocarbon-based products and renewables; and sale of residue gas and condensate. It also engages in inland marine businesses, comprising fleet of boats and barges transport light products, heavy oils, crude oil, renewable fuels, chemicals, and feedstocks in the Mid-Continent and Gulf Coast regions, as well as a marine repair facility located on the Ohio River; and distribution of fuel, as well as operates refining logistics, terminals, rail facilities, and storage caverns. In addition, the company operates terminal facilities for the receipt, storage, blending, additization, handling, and redelivery of refined petroleum products through the pipeline, rail, marine, and truck transportation. MPLX GP LLC acts as the general partner of MPLX LP. The company was incorporated in 2012 and is headquartered in Findlay, Ohio. MPLX LP is a subsidiary of Marathon Petroleum Corporation.

Company website: www.mplx.com

MPLX insider activity at a glance

FilingIQ has scored 956 insider transactions for MPLX since May 15, 2015. The most recent filing in our index is dated Apr 30, 2026.

Across the full history, 22 open-market purchases and 33 open-market sales were filed under transaction codes P and S respectively. Compensatory share awards (code A) and option exercises (code M) are tracked separately and not counted here.

The average FilingIQ composite score on MPLX insider trades is 62.4/100, produced by FilingIQ's multi-factor Form 4 model. Model framework documented at methodology.

View live MPLX trades on FilingIQ Raw filings on SEC EDGAR

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WESTWOOD HOLDINGS GROUP INC (WHG)

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Frequently asked

How many insider trades does FilingIQ track for MPLX?: FilingIQ tracks 956 Form 4 insider transactions for MPLX (MPLX LP), covering filings from May 15, 2015 onwards. 35 of those were filed in the last 90 days.
Are MPLX insiders net buyers or net sellers?: Across the full Form 4 history for MPLX, 22 transactions (2%) were open-market purchases and 33 (3%) were open-market sales. Compensatory awards and option exercises are filtered out of these counts.
Where does MPLX insider data come from?: Every transaction shown on this page is sourced directly from SEC EDGAR Form 4 filings. FilingIQ parses the raw XML, normalises insider identity across reporting variations, and scores each trade on its multi-factor composite model.
What sector is MPLX in?: MPLX LP (MPLX) is classified in the Energy sector, specifically Oil & Gas Midstream, with a current market capitalisation of $59.32B.

Methodology & sources

Every MPLX insider transaction shown on FilingIQ is parsed directly from a public SEC Form 4 XML filing. Insider identity is normalised across reporting variants (CIK changes, name spellings, related-party indirect holdings). The FilingIQ composite score is documented in full on the team page and algo disclosure. Not investment advice; see disclaimer.