NISOURCE director receives 3,807 RSU equity grant

Bunting Theodore H JR reported acquisition or exercise transactions in this Form 4 filing.

Rhea-AI Filing Summary

Bunting Theodore H JR reported acquisition or exercise transactions in this Form 4 filing.

NISOURCE INC. director Theodore H. Bunting Jr. received an equity grant as part of his annual non-employee director compensation. He was awarded 3,807 restricted stock units (RSUs), each representing a contingent right to receive one share of common stock upon vesting under the Company’s 2020 Omnibus Plan.

The RSUs vest in full on the first anniversary of the grant date, subject to specified acceleration conditions. The reported post-transaction holding is 49,931.542 shares of common stock, which includes RSUs credited through dividend equivalent provisions that share the same vesting conditions.

Insider Trade Summary

Grant/Award: 3,807 shares

Grant/Award 1 txn

Insider Bunting Theodore H JR

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	3,807	$47.03	$179K

Holdings After Transaction: Common Stock — 49,931.542 shares (Direct)

Footnotes (2)

1. F1. Represents an award of restricted stock units ("RSU") granted as part of the non-employee director's annual compensation and which vests in full on the first anniversary of the grant date, subject to certain acceleration conditions. RSUs represent a contingent right to receive one share of the Company's common stock upon vesting pursuant to the Company's 2020 Omnibus Plan.
2. F2. This amount includes RSUs received pursuant to the dividend equivalent provisions of the RSU awards, and which are subject to the same vesting conditions as the underlying RSUs.

Key Figures

RSUs granted: 3,807 units Grant reference price: $47.03 per share Holdings after transaction: 49,931.542 shares +1 more

4 metrics

RSUs granted 3,807 units Non-employee director annual compensation award

Grant reference price $47.03 per share Price per share shown for RSU award

Holdings after transaction 49,931.542 shares Total common stock/RSUs after award

Vesting schedule 1-year cliff vesting RSUs vest in full on first anniversary of grant

Key Terms

restricted stock units, RSU, dividend equivalent provisions, 2020 Omnibus Plan

4 terms

restricted stock units financial

"Represents an award of restricted stock units ("RSU") granted as part"

Restricted stock units are a type of company reward where employees are promised shares of stock, but they only fully own these shares after meeting certain conditions, like staying with the company for a set time. They matter because they can become valuable assets and are often used to motivate employees to help the company succeed.

RSU financial

"RSUs represent a contingent right to receive one share of the Company's common stock"

Restricted stock units (RSUs) are a form of company shares given to employees as part of their compensation, usually with certain restrictions or conditions, such as remaining with the company for a set period. When these restrictions lift, employees receive actual shares that they can sell or hold. For investors, RSUs can impact a company's stock supply and reflect the company's commitment to attracting and retaining talent.

dividend equivalent provisions financial

"includes RSUs received pursuant to the dividend equivalent provisions of the RSU awards"

2020 Omnibus Plan financial

"upon vesting pursuant to the Company's 2020 Omnibus Plan"

FAQ

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

What did NISOURCE (NI) director Theodore H. Bunting Jr. report on this Form 4?

He reported receiving 3,807 restricted stock units as part of his annual non-employee director compensation, increasing his reported holdings to 49,931.542 shares of NISOURCE common stock, including RSUs credited through dividend equivalent provisions.

How many NISOURCE (NI) shares does Theodore H. Bunting Jr. hold after this RSU grant?

After the grant, his reported holdings total 49,931.542 shares of NISOURCE common stock. This figure includes restricted stock units and additional RSUs received via dividend equivalent provisions, all subject to the same vesting terms as the underlying awards.

What are the key terms of the NISOURCE (NI) RSU award to Theodore H. Bunting Jr.?

The award consists of 3,807 restricted stock units that vest in full on the first anniversary of the grant date, subject to certain acceleration conditions. Each RSU represents a contingent right to receive one share of NISOURCE common stock upon vesting.

Are the NISOURCE (NI) RSUs granted to Theodore H. Bunting Jr. immediately settled in shares?

No, the RSUs are not immediately settled. They represent a contingent right to receive one share of NISOURCE common stock per unit, with settlement occurring upon vesting in accordance with the company’s 2020 Omnibus Plan terms.

How do dividend equivalents affect Theodore H. Bunting Jr.’s NISOURCE (NI) RSU holdings?

His reported total includes RSUs credited under dividend equivalent provisions tied to the RSU awards. These additional RSUs are subject to the same vesting conditions as the original awards, effectively reinvesting dividend value into more units.

Under which plan were the NISOURCE (NI) RSUs to Theodore H. Bunting Jr. granted?

The RSUs were granted under NISOURCE’s 2020 Omnibus Plan. This plan governs equity-based compensation awards, including restricted stock units that convert into common shares upon satisfaction of specified vesting conditions and any applicable acceleration terms.

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

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Accepted by SEC EDGAR 05/13/2026 - 04:16 PM EDT Learn about SEC filing dates

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^*

Bunting Theodore H JR

(Last) (First) (Middle)

NISOURCE INC.

801 E. 86TH AVE

(Street)

MERRILLVILLE INDIANA 46410

(City) (State) (Zip)

UNITED STATES

(Country)

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

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
05/11/2026

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

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

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

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	05/11/2026		A		3,807(1)	A	$47.03	49,931.542(2)	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. Represents an award of restricted stock units ("RSU") granted as part of the non-employee director's annual compensation and which vests in full on the first anniversary of the grant date, subject to certain acceleration conditions. RSUs represent a contingent right to receive one share of the Company's common stock upon vesting pursuant to the Company's 2020 Omnibus Plan.

2. This amount includes RSUs received pursuant to the dividend equivalent provisions of the RSU awards, and which are subject to the same vesting conditions as the underlying RSUs.

	/s/ Ashley Bancroft, Attorney-in-Fact	05/13/2026
	** 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.
* Form 4: SEC 1474 (03-26)