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Annual Report · 10-K

NiSource Inc.

NINYSEEQUITYCurrent

Annual Report

Filed Feb 11, 2026Accepted Feb 11, 2026, 1:37 AM ESTCIK 1111711Accession 0001111711-26-000027
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Company context

NiSource Inc. (NYSE: NI) is one of the largest fully-regulated utility companies in the United States, serving approximately 3.3 million natural gas customers and 500,000 electric customers across six states through its local Columbia Gas and NIPSCO brands. The mission of our approximately 7,700 employees is to deliver safe, reliable energy that drives value to our customers. NiSource is a member of the Dow Jones Sustainability - North America Index and is on Forbes lists of America’s Best Employers for Women and Diversity. Learn more about NiSource’s record of leadership in sustainability, investments in the communities it serves and how we live our vision to be an innovative and trusted energy partner at www. NiSource.com.

Current securities

Recent company filings

  1. Other EventsAug 18, 2026
  2. 4 filingAug 18, 2026
  3. 424B2 filingAug 14, 2026
  4. 144 filingAug 14, 2026
  5. SCHEDULE 13G/A filingAug 14, 2026

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