NiSource (NI) EVP Melody Birmingham granted 7,308-share RSU award

Rhea-AI Filing Summary

NiSource Inc. executive Melody Birmingham reported an equity award of common stock. On January 21, 2026, she acquired 7,308 shares of NiSource common stock in a transaction coded "A," reflecting a grant tied to Restricted Stock Units under the NiSource Inc. 2020 Omnibus Incentive Plan at a reference price of $43.79 per share.

Each RSU represents a contingent right to receive one share of NiSource common stock and, subject to forfeiture conditions, will vest 100% on February 28, 2029 if she remains continuously employed with the company through that date. Following this grant, she beneficially owned 90,984.728 shares of NiSource common stock, which includes shares accumulated through dividend reinvestment.

Insider Trade Summary

1 transaction reported

Mixed 1 txn

Insider BIRMINGHAM MELODY

Role EVP & Grp President, Utilities

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	7,308	$43.79	$320K

Holdings After Transaction: Common Stock — 90,984.728 shares (Direct)

Footnotes (1)

1. Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Company's common stock pursuant to the NiSource Inc. 2020 Omnibus Incentive Plan. Subject to certain forfeiture conditions, the RSUs will 100% vest on February 28, 2029, provided that the reporting person is continuously employed by the Company through and including that date. Includes shares acquired through dividend reinvestments. Due to an administrative error, there is a duplicate CIK number for this Reporting Person. All future filings will be made under this CIK (0001738248).

Form 4 Insider Transactions: What Each Field Means →

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

BIRMINGHAM MELODY

(Last) (First) (Middle)

801 E. 86TH AVENUE

(Street)

MERRILLVILLE IN 46410

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
NISOURCE INC. [ NI ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & Grp President, Utilities

3. Date of Earliest Transaction (Month/Day/Year)
01/21/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	01/21/2026		A		7,308(1)	A	$43.79	90,984.728(2)(3)	D

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of the Company's common stock pursuant to the NiSource Inc. 2020 Omnibus Incentive Plan. Subject to certain forfeiture conditions, the RSUs will 100% vest on February 28, 2029, provided that the reporting person is continuously employed by the Company through and including that date.

2. Includes shares acquired through dividend reinvestments.

3. Due to an administrative error, there is a duplicate CIK number for this Reporting Person. All future filings will be made under this CIK (0001738248).

	/s/ Ashley Bancroft, Attorney-in-Fact	01/23/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.

FAQ

What insider transaction did NiSource (NI) report for Melody Birmingham?

NiSource reported that executive Melody Birmingham, EVP & Group President, Utilities, acquired 7,308 shares of NiSource common stock on January 21, 2026 in a transaction coded "A," indicating an equity award rather than an open-market purchase or sale.

What is the nature of the 7,308-share award reported for NiSource (NI) executive Melody Birmingham?

The 7,308 shares are tied to Restricted Stock Units (RSUs) granted under the NiSource Inc. 2020 Omnibus Incentive Plan. Each RSU represents a contingent right to receive one share of NiSource common stock, subject to vesting and forfeiture conditions.

When do Melody Birmingham’s NiSource (NI) RSUs vest?

The RSUs associated with this award are scheduled to 100% vest on February 28, 2029, provided that Melody Birmingham remains continuously employed by NiSource through and including that date.

How many NiSource (NI) shares does Melody Birmingham beneficially own after this transaction?

After the reported grant, Melody Birmingham beneficially owned 90,984.728 shares of NiSource common stock. This figure includes shares acquired through dividend reinvestments.

What role does Melody Birmingham hold at NiSource (NI)?

Melody Birmingham is an officer of NiSource, serving as EVP & Group President, Utilities, as indicated in the filing.

Was there any special disclosure about the reporting person’s CIK in this NiSource (NI) Form 4?

Yes. The filing notes that, due to an administrative error, there is a duplicate CIK number for the reporting person, and that all future filings will be made under CIK 0001738248.