Nisource Inc.

NI·NYSE·$47.80Share Price as of 11/2·$23BMarket Cap as of 11/2

Financials

10-QQ3 ended 09/30/2610/28/26 10-QQ2 ended 06/30/2608/05/26 10-QQ1 ended 03/31/2605/06/26 10-KFY 202502/11/26 10-QQ3 ended 09/30/2510/29/25

Disclosures

8-KCurrent report10/28/26 8-KCurrent report10/16/26 8-KCurrent report08/18/26 8-KCurrent report08/05/26 8-KCurrent report05/18/26

Prospectuses and Registrations

424B2Prospectus for primary offering08/14/26 424B5Prospectus supplement08/13/26 FWPFree writing prospectus08/13/26 424B2Prospectus for primary offering05/12/26 424B5Prospectus supplement05/11/26

Proxies

DEF 14ADefinitive proxy03/30/26 DEFA14AAdditional proxy materials03/30/26 DEF 14ADefinitive proxy03/31/25 DEFA14AAdditional proxy materials03/31/25 PX14A6GLetter to shareholders04/12/24

Ownership

144Proposed sale of securities10/30/26 144Proposed sale of securities10/30/26 Form 4Insider transaction08/18/26 144Proposed sale of securities08/14/26 SC 13G/ABeneficial ownership (amended)08/14/26

Other

11-KEmployee stock purchase plan report06/18/26 ARSAnnual report to shareholders03/30/26 11-KEmployee stock purchase plan report06/18/25 ARSAnnual report to shareholders03/31/25 11-KEmployee stock purchase plan report06/26/24