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NISOURCE INC.

For the period ended Jun 30, 2025. Filed Aug 6, 2025.

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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, 2025 · Filed Aug 6, 2025

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

What changed in Risk Factors?

Read the current filing

The baseline is this issuer’s latest earlier reporting period of the same form that was filed before the current report. A previous 10-Q is a different quarter, not a year-over-year comparison. Amendments are excluded.

Compared 11 previous paragraphs and 17 current paragraphs.

9 unchanged; 2 reworded; 6 added; 0 removed; 0 previous and 0 current paragraphs rearranged.

Tables are not compared: 0 previous and 1 current tables excluded. Dates, whitespace, punctuation and numbering changes are ignored; changes to financial figures remain significant.

A changed paragraph is not evidence that risk increased or decreased. An unchanged paragraph does not establish that risk stayed the same.

Added paragraphs (6)

Current report

The impacts of natural disasters, acts of terrorism, acts of war, civil unrest, accidents, public health emergencies or other catastrophic events may disrupt operations and reduce the ability to service customers.

Current report

A disruption or failure of natural gas distribution systems, or within electric generation, transmission or distribution systems, in the event of a hurricane, tornado, wildfire, flood, or other major weather event, or terrorist attack, acts of war, international military invasions, including the political and economic disruption and uncertainty related to such terrorist attack, acts of war, or international military invasions, civil unrest, accident, public health emergency (e.g. pandemic), or other catastrophic event could cause delays in completing sales, providing services, or performing other critical functions. We have experienced disruptions in the past from tornadoes, hurricanes and remnants of hurricanes and other events of this nature. Also, companies in our industry face a heightened risk of exposure to and have experienced acts of terrorism and vandalism. Our electric and gas physical infrastructure may be targets of physical security threats or terrorist activities that could disrupt our operations. We have increased security given the current environment and may be required by regulators or by the future threat environment to make investments in security that we cannot currently predict. In addition, the supply chain constraints that we are experiencing could impact our ability to timely restore services.

Current report

Recent escalation with respect to Middle Eastern conflicts, and in particular, the direct involvement of the United States in the conflict involving Iran, may increase the likelihood that facilities within the United States, including natural gas distribution systems or electric generation, transmission or distribution systems that we own or on which we rely, will be targeted by military strikes, acts of terrorism or cyberattacks. In addition, the continuation or further escalation of these or other conflicts could create significant volatility in global capital markets or significantly disrupt the global economy, including disruptions of the global supply chain.

Current report

The occurrence of such events could materially adversely affect our business, financial position and results of operations. In accordance with customary industry practice, we maintain insurance against some, but not all, of these risks and losses. As a result, the amount and scope of insurance coverage maintained against losses resulting from any such event may not be sufficient to cover such losses or otherwise adequately compensate for any business disruptions that could result.

Current report

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, 2025:

Current report

(1)A trading plan may also expire on such earlier date that all transactions under the trading plan are completed.
Reworded paragraphs (2)

Previous wording

Please refer to the risk factors set forth in Part I, Item 1A of the Annual Report on Form 10-K for the year ended December 31, 2024. There have been no material changes to such risk factors.

Current wording

Please refer to the risk factors set forth in Part I, Item 1A of the Annual Report on Form 10-K for the year ended December 31, 2024. There have been no material changes to such risk factors other than as set forth below.

Previous wording

During the quarter ended March 31, 2025, none of our directors or executive officers adopted or terminated a Rule 10b5-1 trading plan oradopted orterminated a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K).

Current wording

Except as described above, during the quarter ended June 30, 2025, none of our directors or executive officers adopted or terminated a Rule 10b5-1 trading plan oradopted orterminated a non-Rule 10b5-1 trading arrangement (as defined in Item 408(c) of Regulation S-K).