Kimberly S. Cuccia - 27 Feb 2026 Form 4 Insider Report for NISOURCE INC. (NI)

Role
EVP, GC & Corporate Secretary
Signature
/s/ Ashley Bancroft, Attorney-in-Fact
Issuer symbol
NI
Transactions as of
27 Feb 2026
Net transactions value
+$735,137
Form type
4
Filing time
03 Mar 2026, 16:56:40 UTC
Previous filing
23 Jan 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Cuccia Kimberly S EVP, GC & Corporate Secretary 801 E. 86TH AVENUE, MERRILLVILLE /s/ Ashley Bancroft, Attorney-in-Fact 03 Mar 2026 0001900971

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction NI Common Stock Award $1,454,191 +30,744 +65% $47.30 77,928 27 Feb 2026 Direct F1
transaction NI Common Stock Tax liability $572,756 -12,109 -16% $47.30 65,819 27 Feb 2026 Direct F2
transaction NI Common Stock Tax liability $146,299 -3,093 -4.7% $47.30 62,726 27 Feb 2026 Direct F3
holding NI Common Stock 3,867 27 Feb 2026 401k F4
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Vesting of non-derivative performance stock units granted in 2023, which are exempt from liability under Section 16(b) of the Securities Exchange Act pursuant to rule 16b-3(d).
F2 Number of shares reported represent shares withheld to satisfy tax withholding obligations in connection with the vesting of the performance stock units above.
F3 Number of shares reported represent shares withheld to satisfy tax withholding obligations in connection with the vesting of the 2023 Restricted Stock Unit award.
F4 Constitutes shares acquired through the NiSource Inc. Retirement Savings Plan through February 27, 2026.