Shareholder plans sale of 12,500 NI shares

A shareholder filed a notice of proposed sale under Rule 144 to sell 12,500 shares of common stock through Fidelity Brokerage Services LLC on the NYSE, with an approximate sale date of 02/13/2026.

Rhea-AI Filing Summary

A shareholder filed a notice of proposed sale under Rule 144 to sell 12,500 shares of common stock through Fidelity Brokerage Services LLC on the NYSE, with an approximate sale date of 02/13/2026. The shares have an aggregate market value of $562,625.00. They were acquired on 01/24/2026 through restricted stock vesting from the issuer as compensation. The table also notes 478,533,171 shares of this class outstanding, indicating the planned sale is small relative to the total.

FAQ

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What does this Form 144 filing for NI disclose?

The filing discloses a planned Rule 144 sale of 12,500 common shares of NI with an aggregate market value of $562,625.00. The sale will be executed through Fidelity Brokerage Services LLC on the NYSE, subject to normal market conditions and Rule 144 requirements.

How many NI shares are being proposed for sale under Rule 144?

The shareholder plans to sell 12,500 shares of NI common stock. These shares were acquired as restricted stock vesting compensation and are valued at a total of $562,625.00 in the notice, reflecting the market value at the time of the filing data.

When were the NI shares acquired and how were they obtained?

The NI shares were acquired on 01/24/2026 through a restricted stock vesting transaction from the issuer, categorized as compensation. Payment date for the shares is also listed as 01/24/2026, indicating they were granted rather than purchased for cash.

How large is the planned NI share sale compared with shares outstanding?

The notice lists 478,533,171 shares of NI common stock outstanding. The planned sale of 12,500 shares represents a very small fraction of this total, indicating a limited potential impact on overall share supply based on the provided figures.

Which broker and exchange are involved in this NI Form 144 sale?

The proposed sale will be carried out through Fidelity Brokerage Services LLC, located in Smithfield, Rhode Island. The shares are expected to be sold on the NYSE, as identified in the filing, consistent with the listing of NI’s common stock in the table.

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Accepted by SEC EDGAR 02/13/2026 - 09:42 AM EST Learn about SEC filing dates

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK	0001813738
Filer CCC	XXXXXXXX
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer	NISOURCE INC.
SEC File Number	001-16189
Address of Issuer	801 EAST 86TH AVE MERRILLVILLE INDIANA 46410-6272
Phone	2196475200
Name of Person for Whose Account the Securities are To Be Sold	Anderson Shawn
See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.
Relationship to Issuer	Officer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Common	Fidelity Brokerage Services LLC 900 Salem Street Smithfield RI 02917	12500	562625.00	478533171	02/13/2026	NYSE

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Common	01/24/2026	Restricted Stock Vesting	Issuer			12500	01/24/2026	Compensation

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Nothing to Report

144: Remarks and Signature

Remarks
Date of Notice	02/13/2026
Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1	11/10/2025
ATTENTION:
The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.
Signature	/s/ Daniel Tucci, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Shawn Anderson
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)