NiSource (NI) - Shares outstanding

Number of shares outstanding as of May 2026 : 479,000,000

According to NiSource 's latest financial reports and stock price the company's current number of shares outstanding is 479,000,000. At the end of 2026 the company had 479,000,000 shares outstanding. The number of outstanding shares is usually impacted by stock plits and shares buy back.

Shares outstanding history for NiSource from 2015 to 2026

Shares Outstanding at the end of each year

Year	Shares Outstanding	Change
2026	0.47 B	1.46%
2025	0.47 B	4.47%
2024	0.45 B	9.29%
2023	0.41 B	1.72%
2022	0.40 B	3.38%
2021	0.39 B	2.45%
2020	0.38 B	2.59%
2019	0.37 B	2.8%
2018	0.36 B	9.91%
2017	0.33 B	2.73%
2016	0.32 B	1.1%
2015	0.31 B

Shares Outstanding for similar companies or competitors

Company	Shares Outstanding	differencediff.	Country
Atmos Energy ATO	162,727,000	-66.03%	🇺🇸 USA
Sempra SRE	653,170,000	36.36%	🇺🇸 USA
Duke Energy DUK	778,000,000	62.42%	🇺🇸 USA
Chesapeake Utilities CPK	23,754,000	-95.04%	🇺🇸 USA
Genie Energy GNE	26,149,000	-94.54%	🇺🇸 USA

What is the market capitalization of a company?

The market capitalization sometimes referred as Marketcap, is the value of a publicly listed company.
In most cases it can be easily calculated by multiplying the share price with the amount of outstanding shares.

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Number of shares outstanding for NiSource (NI)

Number of shares outstanding as of May 2026 : 479,000,000