What is Marathon Petroleum's shares (diluted)?

Marathon Petroleum (MPC) reported shares (diluted) of 304M in Q3 2025.

How has Marathon Petroleum's shares (diluted) changed year-over-year?

Marathon Petroleum's shares (diluted) decreased by 8.4% year-over-year, from 332M to 304M.

What does shares (diluted) mean?

The total number of shares that would exist if all 'potential' shares, like employee stock options, were converted into real stock.

Earnings Per Share

Shares (Diluted)

Marathon Petroleum Shares (Diluted) decreased by 1.0% to 304M in Q3 2025 compared to the prior quarter. Year-over-year, this metric declined by 8.4%, from 332M to 304M. This is a positive signal — lower values indicate better performance for this metric.

Analysis

StatementIncome Statement

SectionEarnings Per Share

CategoryCapital Allocation

SignalLower is better

VolatilityStable

First reportedQ1 2013

Last reportedQ1 2026

How to read this metric

An increase relative to basic shares indicates a higher reliance on equity-based compensation or convertible debt financing.

Detailed definition

Weighted-average shares outstanding (diluted) includes the total number of basic common shares plus all additional share...

Peer comparison

Commonly compared against basic shares to determine the 'dilution overhang' present in a company's capital structure.

Metric ID: is_weighted_shares_diluted

Historical Data

14 periods

	Q2 '21	Q3 '21	Q1 '22	Q2 '22	Q3 '22	Q1 '23	Q2 '23	Q3 '23	Q1 '24	Q2 '24	Q3 '24	Q1 '25	Q2 '25	Q3 '25
Value	654M	637M	568M	536M	494M	447M	419M	396M	362M	350M	332M	313M	307M	304M
QoQ Change	—	-2.6%	-10.8%	-5.6%	-7.8%	-9.5%	-6.3%	-5.5%	-8.6%	-3.3%	-5.1%	-5.7%	-1.9%	-1.0%
YoY Change	—	—	—	-18.0%	-22.4%	-21.3%	-21.8%	-19.8%	-19.0%	-16.5%	-16.2%	-13.5%	-12.3%	-8.4%

Range304M – 654M

CAGR-21.0%

Avg YoY Growth-17.2%

Median YoY Growth-18.0%

Current Streak13+ quarters decline

Shares (Diluted) at Other Companies

Valero EnergyVLO View metric

Kinder MorganKMI View metric

ChevronCVX View metric

Williams CompaniesWMB View metric

Union PacificUNP View metric

Frequently Asked Questions

What is Marathon Petroleum's shares (diluted)?: Marathon Petroleum (MPC) reported shares (diluted) of 304M in Q3 2025.
How has Marathon Petroleum's shares (diluted) changed year-over-year?: Marathon Petroleum's shares (diluted) decreased by 8.4% year-over-year, from 332M to 304M.
What does shares (diluted) mean?: The total number of shares that would exist if all 'potential' shares, like employee stock options, were converted into real stock.