Nisource Inc. SEC filings NI
Nisource Inc. has 1,000 filings in SEC EDGAR's recent list, going back to Mar 9, 2015. Its latest annual report, Form ARS, was filed on Mar 30, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Oct 28, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Oct 28, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| 8-K |
Current report
Results of operations
|
Oct 28, 2026 | Oct 28, 2026 |
| 8-K |
Current report
New debt
|
Oct 16, 2026 | Oct 15, 2026 |
| 8-K |
Current report
Other events
|
Aug 18, 2026 | Aug 18, 2026 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2026 | Aug 5, 2026 |
| 8-K |
Current report
Other events
|
May 18, 2026 | May 18, 2026 |
| 8-K |
Current report
Shareholder vote results
|
May 12, 2026 | May 11, 2026 |
| 8-K |
Current report
Results of operations
|
May 6, 2026 | May 6, 2026 |
| 8-K |
Current report
Results of operations
|
Feb 11, 2026 | Feb 11, 2026 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 11, 2025 | Dec 11, 2025 |
| 8-K |
Current report
Other events
|
Nov 7, 2025 | Nov 7, 2025 |
| 8-K |
Current report
Material agreement, Other events
|
Oct 31, 2025 | Oct 31, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 29, 2025 | Oct 29, 2025 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 22, 2025 | Sep 22, 2025 |
| 8-K |
Current report
Results of operations
|
Aug 6, 2025 | Aug 6, 2025 |
| 8-K |
Current report
Other events
|
Jun 27, 2025 | Jun 27, 2025 |
| 8-K |
Current report
Shareholder vote results
|
May 13, 2025 | May 12, 2025 |
| 8-K |
Current report
Results of operations
|
May 7, 2025 | May 7, 2025 |
| 8-K |
Current report
Other events
|
Mar 27, 2025 | Mar 27, 2025 |
| 8-K |
Current report
Results of operations
|
Feb 12, 2025 | Feb 12, 2025 |
| 8-K |
Current report
Officer or director change
|
Jan 24, 2025 | Jan 22, 2025 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2024 | Oct 30, 2024 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Oct 22, 2024 | Oct 21, 2024 |
| 8-K |
Current report
Other events
|
Sep 9, 2024 | Sep 9, 2024 |
| 8-K |
Current report
Results of operations
|
Aug 7, 2024 | Aug 7, 2024 |
| 8-K |
Current report
Other events
|
Jun 24, 2024 | Jun 24, 2024 |
| 8-K |
Current report
Other events
|
May 16, 2024 | May 16, 2024 |
| 8-K |
Current report
Shareholder vote results
|
May 13, 2024 | May 13, 2024 |
| 8-K |
Current report
Results of operations
|
May 8, 2024 | May 8, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 19, 2024 | Mar 18, 2024 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Mar 18, 2024 | Mar 18, 2024 |
| 8-K |
Current report
Officer or director change
|
Mar 15, 2024 | Mar 15, 2024 |
| 8-K |
Current report
Other events
|
Mar 14, 2024 | Mar 14, 2024 |
| 8-K |
Current report
Material agreement, Other events
|
Feb 22, 2024 | Feb 22, 2024 |
| 8-K |
Current report
Results of operations
|
Feb 21, 2024 | Feb 21, 2024 |
| 8-K |
Current report
Officer or director change
|
Feb 20, 2024 | Feb 19, 2024 |
| 8-K |
Current report
Other events
|
Feb 9, 2024 | Feb 9, 2024 |
| 8-K |
Current report
Officer or director change
|
Jan 26, 2024 | Jan 24, 2024 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jan 2, 2024 | Dec 31, 2023 |
| 8-K |
Current report
Material agreement, Change to shareholder rights
|
Dec 18, 2023 | Dec 18, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 6, 2023 | Dec 6, 2023 |
| 8-K |
Current report
Listing notice, Regulation FD disclosure
|
Dec 1, 2023 | Dec 1, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 17, 2023 | Nov 17, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 17, 2023 | Nov 17, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 15, 2023 | Nov 15, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 14, 2023 | Nov 14, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Nov 9, 2023 | Nov 9, 2023 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2023 | Nov 1, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 20, 2023 | Oct 20, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 20, 2023 | Oct 19, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Oct 5, 2023 | Oct 5, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 28, 2023 | Sep 28, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 15, 2023 | Sep 15, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Aug 23, 2023 | Aug 23, 2023 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2023 | Aug 2, 2023 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Jun 20, 2023 | Jun 17, 2023 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Jun 16, 2023 | Jun 16, 2023 |
| 8-K |
Current report
Regulation FD disclosure, Other events
|
Jun 9, 2023 | Jun 8, 2023 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 24, 2023 | May 23, 2023 |
| 8-K |
Current report
Other events
|
May 8, 2023 | May 8, 2023 |
| 8-K |
Current report
Results of operations
|
May 3, 2023 | May 3, 2023 |
| 8-K |
Current report
Other events
|
Mar 24, 2023 | Mar 24, 2023 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Mar 15, 2023 | Mar 14, 2023 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 13, 2023 | Mar 10, 2023 |
| 8-K |
Current report
Results of operations
|
Feb 22, 2023 | Feb 22, 2023 |
| 8-K |
Current report
Material agreement, New debt
|
Dec 20, 2022 | Dec 20, 2022 |
| 8-K |
Current report
Other events
|
Nov 10, 2022 | Nov 10, 2022 |
| 8-K |
Current report
Regulation FD disclosure
|
Nov 7, 2022 | Nov 7, 2022 |
| 8-K |
Current report
Results of operations, Regulation FD disclosure
|
Nov 7, 2022 | Nov 7, 2022 |
| 8-K |
Current report
Officer or director change
|
Aug 16, 2022 | Aug 15, 2022 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Aug 10, 2022 | Aug 9, 2022 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2022 | Aug 3, 2022 |
| 8-K |
Current report
Other events
|
Jun 10, 2022 | Jun 10, 2022 |
| 8-K |
Current report
Officer or director change, Shareholder vote results, Regulation FD disclosure
|
May 25, 2022 | May 24, 2022 |
| 8-K |
Current report
Results of operations
|
May 4, 2022 | May 4, 2022 |
| 8-K |
Current report
Officer or director change
|
Apr 27, 2022 | Apr 25, 2022 |
| 8-K/A |
Amended current report
Officer or director change
|
Mar 16, 2022 | Mar 15, 2022 |
| 8-K |
Current report
Officer or director change
|
Mar 16, 2022 | Mar 14, 2022 |
| 8-K |
Current report
Results of operations
|
Feb 23, 2022 | Feb 23, 2022 |
| 8-K |
Current report
Material agreement, New debt
|
Feb 18, 2022 | Feb 18, 2022 |
| 8-K |
Current report
Officer or director change
|
Jan 27, 2022 | Jan 27, 2022 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2021 | Nov 3, 2021 |
| 8-K |
Current report
Officer or director change
|
Oct 25, 2021 | Oct 20, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 10, 2021 | Sep 7, 2021 |
| 8-K |
Current report
Other events
|
Aug 6, 2021 | Aug 6, 2021 |
| 8-K |
Current report
Results of operations
|
Aug 4, 2021 | Aug 4, 2021 |
| 8-K |
Current report
Shareholder vote results
|
May 26, 2021 | May 25, 2021 |
| 8-K |
Current report
Results of operations
|
May 5, 2021 | May 5, 2021 |
| 8-K |
Current report
Material agreement, Bylaw or fiscal year change, Other events
|
Apr 19, 2021 | Apr 13, 2021 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 13, 2021 | Apr 12, 2021 |
| 8-K |
Current report
Material agreement, Other events
|
Feb 22, 2021 | Feb 22, 2021 |
| 8-K |
Current report
Results of operations
|
Feb 17, 2021 | Feb 17, 2021 |
| 8-K |
Current report
Results of operations
|
Nov 2, 2020 | Nov 2, 2020 |
| 8-K |
Current report
Officer or director change
|
Oct 23, 2020 | Oct 19, 2020 |
| 8-K |
Current report
Other events
|
Oct 9, 2020 | Oct 9, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Sep 29, 2020 | Sep 29, 2020 |
| 8-K |
Current report
Other events
|
Aug 26, 2020 | Aug 26, 2020 |
| 8-K |
Current report
Other events
|
Aug 19, 2020 | Aug 18, 2020 |
| 8-K |
Current report
Other events
|
Aug 18, 2020 | Aug 18, 2020 |
| 8-K |
Current report
Other events
|
Aug 13, 2020 | Aug 12, 2020 |
| 8-K |
Current report
Other events
|
Aug 12, 2020 | Aug 12, 2020 |
| 8-K |
Current report
Results of operations
|
Aug 5, 2020 | Aug 5, 2020 |
| 8-K |
Current report
Officer or director change
|
Jul 20, 2020 | Jul 15, 2020 |
| 8-K |
Current report
Material agreement, Other events
|
Jul 6, 2020 | Jul 2, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
May 26, 2020 | May 26, 2020 |
| 8-K/A |
Amended current report
Officer or director change
|
May 21, 2020 | Mar 9, 2020 |
| 8-K |
Current report
Shareholder vote results
|
May 21, 2020 | May 19, 2020 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
May 21, 2020 | May 19, 2020 |
| 8-K |
Current report
Results of operations
|
May 6, 2020 | May 6, 2020 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 23, 2020 | Apr 23, 2020 |
| 8-K |
Current report
Other events
|
Apr 8, 2020 | Apr 8, 2020 |
| 8-K |
Current report
Material agreement, Agreement ended, New debt
|
Apr 1, 2020 | Apr 1, 2020 |
| 8-K |
Current report
Officer or director change
|
Mar 12, 2020 | Mar 6, 2020 |
| 8-K |
Current report
Officer or director change
|
Mar 11, 2020 | Mar 9, 2020 |
| 8-K |
Current report
Material agreement
|
Feb 27, 2020 | Feb 26, 2020 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
Feb 27, 2020 | Feb 26, 2020 |
| 8-K |
Current report
Results of operations
|
Feb 27, 2020 | Feb 26, 2020 |
| 8-K |
Current report
Other events
|
Dec 3, 2019 | Nov 27, 2019 |
| 8-K |
Current report
Results of operations
|
Oct 30, 2019 | Oct 30, 2019 |
| 8-K/A |
Amended current report
Officer or director change
|
Oct 24, 2019 | Jun 5, 2019 |
| 8-K |
Current report
Other events
|
Aug 12, 2019 | Aug 12, 2019 |
| 8-K |
Current report
Results of operations
|
Jul 31, 2019 | Jul 31, 2019 |
| 8-K |
Current report
Other events
|
Jul 29, 2019 | Jul 26, 2019 |
| 8-K |
Current report
Officer or director change
|
Jun 6, 2019 | Jun 5, 2019 |
| 8-K |
Current report
Bylaw or fiscal year change, Shareholder vote results
|
May 8, 2019 | May 7, 2019 |
| 8-K |
Current report
Results of operations
|
May 1, 2019 | May 1, 2019 |
| 8-K |
Current report
Material agreement, New debt
|
Apr 17, 2019 | Apr 17, 2019 |
| 8-K |
Current report
Officer or director change
|
Mar 8, 2019 | Mar 4, 2019 |
| 8-K |
Current report
Material agreement, New debt
|
Feb 20, 2019 | Feb 20, 2019 |
| 8-K |
Current report
Results of operations
|
Feb 20, 2019 | Feb 20, 2019 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change
|
Dec 27, 2018 | Dec 26, 2018 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Dec 13, 2018 | Dec 12, 2018 |
| 8-K |
Current report
Change to shareholder rights, Bylaw or fiscal year change, Other events
|
Dec 6, 2018 | Nov 30, 2018 |
| 8-K |
Current report
Material agreement
|
Nov 29, 2018 | Nov 28, 2018 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2018 | Nov 1, 2018 |
| 8-K |
Current report
Material agreement, Other events
|
Nov 1, 2018 | Nov 1, 2018 |
| 8-K/A |
Amended current report
Officer or director change
|
Oct 24, 2018 | Sep 5, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Oct 15, 2018 | Oct 12, 2018 |
| 8-K |
Current report
Officer or director change, Regulation FD disclosure
|
Sep 27, 2018 | Sep 26, 2018 |
| 8-K |
Current report
Officer or director change
|
Sep 5, 2018 | Sep 5, 2018 |
| 8-K |
Current report
Results of operations
|
Aug 1, 2018 | Aug 1, 2018 |
| 8-K |
Current report
Material agreement, New debt, Unregistered share sale, Change to shareholder rights, Bylaw or fiscal year change, Regulation FD disclosure
|
Jun 12, 2018 | Jun 6, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Jun 4, 2018 | Jun 4, 2018 |
| 8-K |
Current report
Shareholder vote results
|
May 9, 2018 | May 8, 2018 |
| 8-K |
Current report
Unregistered share sale
|
May 7, 2018 | May 2, 2018 |
| 8-K |
Current report
Material agreement, Regulation FD disclosure
|
May 2, 2018 | May 2, 2018 |
| 8-K |
Current report
Results of operations
|
May 2, 2018 | May 2, 2018 |
| 8-K |
Current report
Material agreement, New debt
|
Apr 19, 2018 | Apr 18, 2018 |
| 8-K |
Current report
Officer or director change
|
Mar 29, 2018 | Mar 26, 2018 |
| 8-K |
Current report
Results of operations
|
Feb 20, 2018 | Feb 20, 2018 |
| 8-K |
Current report
Bylaw or fiscal year change, Other events
|
Jan 26, 2018 | Jan 26, 2018 |
| 8-K |
Current report
Regulation FD disclosure
|
Dec 21, 2017 | Dec 21, 2017 |
| 8-K |
Current report
Other events
|
Dec 1, 2017 | Nov 30, 2017 |
| 8-K |
Current report
Material agreement, New debt
|
Nov 14, 2017 | Nov 8, 2017 |
| 8-K/A |
Amended current report
Officer or director change
|
Nov 1, 2017 | Jul 10, 2017 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2017 | Nov 1, 2017 |
| 8-K |
Current report
Material agreement, New debt
|
Sep 8, 2017 | Sep 5, 2017 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2017 | Aug 2, 2017 |
| 8-K |
Current report
Officer or director change
|
Jul 14, 2017 | Jul 10, 2017 |
| 8-K |
Current report
Material agreement, New debt
|
May 17, 2017 | May 11, 2017 |
| 8-K |
Current report
Shareholder vote results
|
May 10, 2017 | May 9, 2017 |
| 8-K |
Current report
Results of operations
|
May 3, 2017 | May 3, 2017 |
| 8-K |
Current report
Material agreement, Other events
|
May 3, 2017 | May 3, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Apr 28, 2017 | Apr 28, 2017 |
| 8-K |
Current report
Other events
|
Apr 26, 2017 | Apr 26, 2017 |
| 8-K |
Current report
Officer or director change
|
Mar 24, 2017 | Mar 20, 2017 |
| 8-K |
Current report
Regulation FD disclosure
|
Mar 8, 2017 | Mar 8, 2017 |
| 8-K |
Current report
Results of operations
|
Feb 22, 2017 | Feb 22, 2017 |
| 8-K |
Current report
Officer or director change
|
Jan 27, 2017 | Jan 27, 2017 |
| 8-K |
Current report
Material agreement, New debt
|
Nov 28, 2016 | Nov 28, 2016 |
| 8-K |
Current report
Results of operations
|
Nov 1, 2016 | Nov 1, 2016 |
| 8-K |
Current report
Results of operations
|
Aug 2, 2016 | Aug 2, 2016 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure
|
May 12, 2016 | May 11, 2016 |
| 8-K |
Current report
Results of operations
|
May 3, 2016 | May 3, 2016 |
| 8-K |
Current report
Material agreement, New debt
|
Mar 31, 2016 | Mar 31, 2016 |
| 8-K |
Current report
Officer or director change
|
Mar 24, 2016 | Mar 22, 2016 |
| 8-K |
Current report
Results of operations
|
Feb 18, 2016 | Feb 18, 2016 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Feb 1, 2016 | Jan 29, 2016 |
| 8-K |
Current report
Bylaw or fiscal year change
|
Dec 18, 2015 | Dec 17, 2015 |
| 8-K |
Current report
Results of operations
|
Nov 3, 2015 | Nov 3, 2015 |
| 8-K |
Current report
Officer or director change
|
Oct 23, 2015 | Oct 20, 2015 |
| 8-K |
Current report
Results of operations
|
Aug 3, 2015 | Aug 3, 2015 |
| 8-K |
Current report
Officer or director change
|
Jul 6, 2015 | Jul 3, 2015 |
| 8-K |
Current report
Material agreement, Acquisition or sale of assets, Exit or restructuring costs, Regulation FD disclosure
|
Jul 2, 2015 | Jun 30, 2015 |
| 8-K | Current report | Jun 5, 2015 | Jun 5, 2015 |
| 8-K |
Current report
Officer or director change
|
Jun 5, 2015 | Jun 2, 2015 |
| 8-K |
Current report
Other events
|
Jun 2, 2015 | Jun 2, 2015 |
| 8-K |
Current report
Material agreement, New debt
|
May 22, 2015 | May 22, 2015 |
| 8-K |
Current report
Other events
|
May 19, 2015 | May 18, 2015 |
| 8-K |
Current report
Regulation FD disclosure
|
May 19, 2015 | May 19, 2015 |
| 8-K |
Current report
Regulation FD disclosure
|
May 14, 2015 | May 14, 2015 |
| 8-K |
Current report
Shareholder vote results, Regulation FD disclosure
|
May 12, 2015 | May 12, 2015 |
| 8-K |
Current report
Other events
|
May 5, 2015 | May 5, 2015 |
| 8-K |
Current report
Results of operations
|
Apr 30, 2015 | Apr 29, 2015 |
| 8-K |
Current report
Officer or director change
|
Mar 25, 2015 | Mar 24, 2015 |
Showing 194 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Electric & Other Services Combined (SIC 4931)
- Listed as
- NI (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Merrillville, IN
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1111711
- Former names
- NISOURCE INC/DE (until Jun 26, 2019); NEW NISOURCE INC (until Nov 2, 2000)
Other Electric & Other Services Combined companies
- Duke Energy CORP DUK
- Xcel Energy Inc XEL
- Exelon Corp EXC
- Consolidated Edison Inc ED
- PG&E Corp PCG
- Wec Energy Group, Inc. WEC
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.