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Shares Outstanding for NiSource (NI)

According to NiSource's latest reported financial statements, the company's latest reported diluted shares outstanding is 474.50M. Diluted weighted-average shares outstanding is the share count used to compute per-share metrics like EPS. Buybacks lower it; new issuance, stock-based compensation, and convertible securities raise it. Multiply by the stock price for market capitalization.

Headline figure above is from the reporting period ending (reported ). Chart and table below cover the full reported history back to .

Latest period

474.50M

YoY change

+4.1%

5Y CAGR

+4.3%

Peak year (2025)

474.50M

Latest annual

474.50M

Shares Outstanding history chart for NiSource (NI) from 1985 to 2025

Shares Outstanding history table for NiSource (NI) from 1985 to 2025

Fiscal yearPeriod endedReportedShares OutstandingYoY
2025474.50M+4.1%
2024456.00M+1.8%
2023447.90M+1.2%
2022442.70M+6.1%
2021417.30M+8.6%
2020384.35M+2.2%
2019375.99M+5.5%
2018356.50M+7.8%
2017330.80M+2.3%
2016323.50M+1.2%
2015319.80M+1.0%
2014316.60M+1.0%
2013313.60M+4.4%
2012300.40M+4.1%
2011288.50M+3.0%
2010280.10M+1.6%
2009275.80M+0.1%
2008275.40M+0.3%
2007274.70M+0.5%
2006273.40M+0.1%
2005273.00M+2.8%
2004265.50M+2.8%
2003258.18M+21.3%
2002212.86M+1.4%
2001209.90M+72.5%
2000121.65M-3.7%
1999126.30M+3.6%
1998121.95M-2.2%
1997124.71M+1.0%
1996123.50M-3.3%
1995127.70M-2.4%
1994130.81M-1.7%
1993133.04M-1.3%
1992134.85M-0.6%
1991135.73M+7.4%
1990126.40M-13.3%
1989145.76M-1.4%
1988147.86M+2.6%
1987144.07M+1.2%
1986142.41M+0.3%
1985142.00M

Shares Outstanding values are taken from NiSource's reported income statements (10-Q quarterly and 10-K annual filings with the U.S. Securities and Exchange Commission). Each row shows the period end date and the date the filing was reported; YoY compares each figure to the same period one year earlier. Amounts are in USD as filed.

Analysis

NiSource (NI) most recent annual diluted shares outstanding stands at 474.50M (2025) – edged up 4.1% year-over-year.

Looking at the 2020–2025 (5 years) stretch, NiSource diluted shares outstanding compounded at +4.3% per year, sustaining 25 straight years of year-over-year growth.

Across the available history, diluted shares outstanding reached its high of 474.50M in 2025 and its low of 121.65M in 2000.

Among 8 Utilities peers, NiSource (NI) ranks 7th; the peer median for diluted shares outstanding is 714.85M.

NiSource Shares Outstanding by Year

NiSource Shares Outstanding 2025: 474.50M

NiSource diluted shares outstanding in 2025 was 474.50M, edged up 4.1% from 2024. This figure represents the highest annual value in the available history.

NiSource Shares Outstanding 2024: 456.00M

NiSource diluted shares outstanding in 2024 was 456.00M, edged up 1.8% from 2023.

NiSource Shares Outstanding 2023: 447.90M

NiSource diluted shares outstanding in 2023 was 447.90M, edged up 1.2% from 2022.

NiSource Shares Outstanding 2022: 442.70M

NiSource diluted shares outstanding in 2022 was 442.70M, grew 6.1% from 2021.

NiSource Shares Outstanding 2021: 417.30M

NiSource diluted shares outstanding in 2021 was 417.30M.

See more financial history for NiSource (NI).

Sector peers — Shares Outstanding

Companies in the same sector as NiSource, ranked by their latest diluted shares outstanding.

CompanyShares OutstandingSector
NextEra Energy, Inc. (NEE)2.09BUtilities
The Southern Company (SO)1.11BUtilities
Dominion Energy, Inc. (D)855.30MUtilities
Duke Energy Corporation (DUK)777.00MUtilities
Sempra (SRE)652.70MUtilities
American Electric Power Company, Inc. (AEP)520.21MUtilities
Constellation Energy Corporation (CEG)314.00MUtilities
GE Vernova Inc. (GEV)276.00MUtilities

Frequently asked questions

What is NiSource's diluted shares outstanding?

Latest reported diluted shares outstanding for NiSource (NI) is 474.50M (period ending December 31, 2025).

How has NiSource diluted shares outstanding changed year-over-year?

NiSource (NI) diluted shares outstanding changed +4.1% year-over-year on the latest annual filing.

What is the long-term growth rate of NiSource diluted shares outstanding?

NiSource (NI) diluted shares outstanding compound annual growth rate is +4.3% over the most recent 5 years available.

When did NiSource diluted shares outstanding hit its highest annual value?

NiSource diluted shares outstanding reached its highest annual value of 474.50M in 2025.

What was NiSource diluted shares outstanding in 2024?

NiSource (NI) diluted shares outstanding in 2024 was 456.00M.

What was NiSource diluted shares outstanding in 2025?

NiSource (NI) diluted shares outstanding in 2025 was 474.50M.

Metrics overview

Pick a metric for charts, filings, and peers — each row shows the latest TTM or annual value with year-over-year change.