NI files Form 144 to sell 2,500 shares

NI submitted a Form 144 notice relating to proposed sales of Common Stock.

Rhea-AI Filing Summary

NI submitted a Form 144 notice relating to proposed sales of Common Stock. The filing lists 2,500 shares through Fidelity Brokerage Services LLC with proceeds $118,575.25 (trade date 05/20/2026). It also records shares from restricted stock vesting: 1,863 shares (02/27/2026) and dividend reinvestment: 637 shares (05/19/2026). The filing shows a sale in the past three months: Melody Birmingham sold 10,000 shares on 05/14/2026 for $471,850.00.

Key Figures

Proposed sale: 2,500 shares Proceeds listed: $118,575.25 Restricted stock vesting: 1,863 shares +3 more

6 metrics

Proposed sale 2,500 shares trade date 05/20/2026 via Fidelity Brokerage Services LLC

Proceeds listed $118,575.25 associated with the 2,500-share entry

Restricted stock vesting 1,863 shares vesting date 02/27/2026

Dividend reinvestment 637 shares recorded 05/19/2026

Sale in past 3 months 10,000 shares Melody Birmingham sale on 05/14/2026

Proceeds from past sale $471,850.00 Melody Birmingham sale on 05/14/2026

Key Terms

Form 144, Restricted Stock Vesting, Dividend Reinvestment

3 terms

Form 144 regulatory

"submitted a <b>Form 144</b> notice relating to proposed sales"

Form 144 is a document that investors must file with the government when they plan to sell a large number of shares of a company's stock. It helps ensure transparency so everyone knows how many shares are being sold and when, which can impact the stock's price.

Restricted Stock Vesting financial

"Securities To Be Sold | Restricted Stock Vesting | Issuer"

Restricted stock vesting is the timetable and conditions under which shares granted to employees or insiders become fully owned and can be sold, typically requiring continued work or meeting performance goals. It matters to investors because large blocks of shares can become tradable at once, which can change share supply and price, and because vesting aligns insiders’ incentives with the company’s long‑term performance—think of it like a timed unlock that both rewards and locks in key people.

Dividend Reinvestment financial

"Securities To Be Sold | Dividend Reinvestment | Issuer"

Dividend reinvestment is when the money earned from a company's profit sharing, called dividends, is automatically used to buy more shares of that company instead of being received as cash. This process helps investors grow their holdings over time without extra effort, much like using earned interest to buy more of a savings account. It encourages long-term investment growth by continuously increasing the amount of shares owned.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What does NI's Form 144 disclose about shares to be sold?

The filing lists a proposed sale of 2,500 shares through Fidelity Brokerage Services LLC with associated proceeds of $118,575.25 and a trade date of 05/20/2026. It also itemizes issuance sources tied to the shares.

Which issuance sources for NI shares are listed in the filing?

The notice records restricted stock vesting of 1,863 shares dated 02/27/2026 and a dividend reinvestment of 637 shares dated 05/19/2026. These line items appear under "Securities To Be Sold."

Does the Form 144 show recent insider sales for NI?

Yes. The filing shows that Melody Birmingham sold 10,000 shares on 05/14/2026 for $471,850.00. That sale is listed in the "Securities Sold During The Past 3 Months" section.

Who is the broker/dealer handling the disclosed sale for NI?

The broker-dealer named is Fidelity Brokerage Services LLC at 900 Salem Street, Smithfield, RI. The filing associates Fidelity with the 2,500-share transaction dated 05/20/2026.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 05/20/2026 - 12:35 PM EDT 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	0001738248
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	BIRMINGHAM MELODY
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	2500	118575.25	479439245	05/20/2026	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	02/27/2026	Restricted Stock Vesting	Issuer			1863	02/27/2026	Compensation
Common	05/19/2026	Dividend Reinvestment	Issuer			637	05/19/2026	Cash

* 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

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Melody Birmingham 801 East 86th Avenue Merrillville IN 46410	Common	05/14/2026	10000	471850.00

144: Remarks and Signature

Remarks
Date of Notice	05/20/2026
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/ Tyler Johnson, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Melody Birmingham
ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)