NiSource (NI) 8-KOther Events

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-K

CURRENT REPORT

Pursuant to Section 13 OR 15(d)

of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported): June 24, 2024

NiSource Inc.

(Exact Name of Registrant as Specified in Charter)

Registrant’s telephone number, including area code: (877) 647-5990

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

Securities registered pursuant to Section 12(b) of the Act:

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§ 230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§ 240.12b-2 of this chapter).

Emerging growth company ☐

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

Senior Notes Due 2029

On June 17, 2024, NiSource Inc. (the “Company”) and Barclays Capital Inc., BNP Paribas Securities Corp., KeyBanc Capital Markets Inc., MUFG Securities Americas Inc. and Scotia Capital (USA) Inc., as representatives of the underwriters, entered into a Terms Agreement (the “Terms Agreement”) with respect to the offering and sale of $600,000,000 aggregate principal amount of the Company’s 5.200% Notes due 2029 (the “Notes”) under the Company’s Registration Statement on Form S-3 (File No. 333-268084) (the “Registration Statement”). The Terms Agreement incorporates by reference the provisions of the Company’s Underwriting Agreement, dated November 30, 2017 (a form of which was filed with the Securities and Exchange Commission (the “SEC”) on November 30, 2017).

The sale closed on June 24, 2024. The Notes were issued pursuant to an Indenture, dated as of November 14, 2000, between the Company, as issuer and successor-in-interest to NiSource Finance Corp., and The Bank of New York Mellon, as successor trustee, as amended and supplemented. The Company intends to use the net proceeds from the sale of the Notes for general corporate purposes, including to finance capital expenditures, for working capital and to repay existing indebtedness.

The preceding is a summary of the terms of the Notes and is qualified in its entirety by reference to the form of the Notes filed as Exhibit 4.1 to this Current Report on Form 8-K and which is incorporated herein by reference. The Company is filing Exhibit 5.1 with this Current Report on Form 8-K in connection with the Registration Statement.

(d) Exhibits

Cautionary Statement Concerning Forward-Looking Statements

This current report on Form 8-K contains forward-looking statements that are not historical facts, including statements about the anticipated use of proceeds from the sale of the Notes. These statements are based on current expectations and assumptions, which management believes are reasonable, and on information currently available to management, but are necessarily subject to various risks and uncertainties. In addition to the risk that these assumptions prove to be inaccurate, factors that could cause actual results to differ materially from those contemplated by the forward-looking statements include factors disclosed in the Company’s Annual Report on Form 10-K for the year ended December 31, 2023, and its subsequent filings with the SEC, which are available on the Company’s website at www.nisource.com and on the SEC’s website at www.sec.gov. The Company undertakes no obligation to publicly update or revise any forward-looking statements, whether due to new information, future events or otherwise, except to the extent required by law.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.