What is Marathon Petroleum's shares (basic)?

Marathon Petroleum (MPC) reported shares (basic) of 295M in Q1 2026.

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

Marathon Petroleum's shares (basic) decreased by 5.8% year-over-year, from 313M to 295M.

What does shares (basic) mean?

The average number of actual shares owned by investors throughout the year, accounting for any shares the company bought back or issued.

Earnings Per Share

Shares (Basic)

Marathon Petroleum Shares (Basic) decreased by 2.6% to 295M in Q1 2026 compared to the prior quarter. Year-over-year, this metric declined by 5.8%, from 313M to 295M.

Analysis

StatementIncome Statement

SectionEarnings Per Share

CategoryCapital Allocation

SignalContext dependent

VolatilityStable

First reportedQ1 2013

Last reportedQ1 2026

How to read this metric

A decreasing trend typically signals an aggressive share buyback program, which can increase the value of remaining shares.

Detailed definition

Weighted-average shares outstanding (basic) is the calculation of the total number of common shares held by the public d...

Peer comparison

Used to evaluate the scale of a company's equity base relative to its market capitalization and peer group.

Metric ID: weighted_shares_basic

Historical Data

15 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	Q1 '26
Value	650M	633M	564M	532M	491M	444M	417M	394M	361M	349M	331M	313M	307M	303M	295M
QoQ Change	—	-2.6%	-10.9%	-5.7%	-7.7%	-9.6%	-6.1%	-5.5%	-8.4%	-3.3%	-5.2%	-5.4%	-1.9%	-1.3%	-2.6%
YoY Change	—	—	—	-18.2%	-22.4%	-21.3%	-21.6%	-19.8%	-18.7%	-16.3%	-16.0%	-13.3%	-12.0%	-8.5%	-5.8%

Range295M – 650M

CAGR-20.2%

Avg YoY Growth-16.1%

Median YoY Growth-17.2%

Current Streak14+ quarters decline

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Frequently Asked Questions

What is Marathon Petroleum's shares (basic)?: Marathon Petroleum (MPC) reported shares (basic) of 295M in Q1 2026.
How has Marathon Petroleum's shares (basic) changed year-over-year?: Marathon Petroleum's shares (basic) decreased by 5.8% year-over-year, from 313M to 295M.
What does shares (basic) mean?: The average number of actual shares owned by investors throughout the year, accounting for any shares the company bought back or issued.