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 .

NI
Currently viewingShares OutstandingSwitch metric
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 year | Period ended | Reported | Shares Outstanding | YoY |
|---|---|---|---|---|
| 2025 | 474.50M | +4.1% | ||
| 2024 | 456.00M | +1.8% | ||
| 2023 | 447.90M | +1.2% | ||
| 2022 | 442.70M | +6.1% | ||
| 2021 | 417.30M | +8.6% | ||
| 2020 | 384.35M | +2.2% | ||
| 2019 | 375.99M | +5.5% | ||
| 2018 | 356.50M | +7.8% | ||
| 2017 | 330.80M | +2.3% | ||
| 2016 | 323.50M | +1.2% | ||
| 2015 | 319.80M | +1.0% | ||
| 2014 | 316.60M | +1.0% | ||
| 2013 | 313.60M | +4.4% | ||
| 2012 | 300.40M | +4.1% | ||
| 2011 | 288.50M | +3.0% | ||
| 2010 | 280.10M | +1.6% | ||
| 2009 | 275.80M | +0.1% | ||
| 2008 | 275.40M | +0.3% | ||
| 2007 | 274.70M | +0.5% | ||
| 2006 | 273.40M | +0.1% | ||
| 2005 | 273.00M | +2.8% | ||
| 2004 | 265.50M | +2.8% | ||
| 2003 | 258.18M | +21.3% | ||
| 2002 | 212.86M | +1.4% | ||
| 2001 | 209.90M | +72.5% | ||
| 2000 | 121.65M | -3.7% | ||
| 1999 | 126.30M | +3.6% | ||
| 1998 | 121.95M | -2.2% | ||
| 1997 | 124.71M | +1.0% | ||
| 1996 | 123.50M | -3.3% | ||
| 1995 | 127.70M | -2.4% | ||
| 1994 | 130.81M | -1.7% | ||
| 1993 | 133.04M | -1.3% | ||
| 1992 | 134.85M | -0.6% | ||
| 1991 | 135.73M | +7.4% | ||
| 1990 | 126.40M | -13.3% | ||
| 1989 | 145.76M | -1.4% | ||
| 1988 | 147.86M | +2.6% | ||
| 1987 | 144.07M | +1.2% | ||
| 1986 | 142.41M | +0.3% | ||
| 1985 | 142.00M | — |
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.
| Company | Shares Outstanding | Sector |
|---|---|---|
| NextEra Energy, Inc. (NEE) | 2.09B | Utilities |
| The Southern Company (SO) | 1.11B | Utilities |
| Dominion Energy, Inc. (D) | 855.30M | Utilities |
| Duke Energy Corporation (DUK) | 777.00M | Utilities |
| Sempra (SRE) | 652.70M | Utilities |
| American Electric Power Company, Inc. (AEP) | 520.21M | Utilities |
| Constellation Energy Corporation (CEG) | 314.00M | Utilities |
| GE Vernova Inc. (GEV) | 276.00M | Utilities |
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
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