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NISOURCE INC.

For the period ended Jun 30, 2026. Filed Aug 5, 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.

Jun 30, 2026 · Filed Aug 5, 2026

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

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Other Information

ITEM 5. OTHER INFORMATION

Director and Officer Trading Arrangements

The following table describes any contracts, instructions or written plans for the sale or purchase of NiSource securities that are intended to satisfy the affirmative defense conditions of Rule 10b5-1(c) of the Exchange Act that were adopted by our directors and executive officers during the quarter ended June 30, 2026:

Name and TitleDate of Adoption of Rule 10b5-1 Trading PlanScheduled Expiration Date of Rule 10b5-1 Trading Plan(1)Aggregate Number of Securities to Be Purchased or Sold(2)
Shawn AndersonExecutive Vice President, Chief Financial Officer5/14/202611/30/2026Sale of up to 13,000 shares of common stock in multiple transactions

(1)A trading plan may also expire on such earlier date that all transactions under the trading plan are completed.

(2)Aggregate number may increase upon time of transacting in order to account for dividends.

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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.