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NISOURCE INC.

For the period ended Mar 31, 2026. Filed May 6, 2026.

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About this filing

A company's report for each of its first three quarters. The financial statements are not audited. It shows how the business has moved since the last annual report, and what management says changed.

Mar 31, 2026 · Filed May 6, 2026

NI$45.06+2.1%Stored close · as of Nov 9, 2026

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Item 5. Other Information

Other Information

Critical Accounting Estimates

A summary of our critical accounting estimates is included in the Company's Annual Report on Form 10-K for the year ended December 31, 2025. There were no material changes made as of March 31, 2026.

Recently Issued Accounting Pronouncements

Refer to Note 2, "Recent Accounting Pronouncements," in the Notes to the Condensed Consolidated Financial Statements (unaudited) for additional information about recently issued and adopted accounting pronouncements.

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The text of this filing, as the company filed it with the SEC, without its images or exhibits. This is not investment advice.