---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-453603"
form_type: "8-K"
ticker: "NI"
cik: "0001111711"
company_name: "NISOURCE INC."
filed_at: "2026-11-09T21:10:23+00:00"
generated_at: "2026-11-09T21:12:27.277656+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# NiSource closes $600M 5.400% senior notes due 2032

## Summary
- NiSource sold $600,000,000 aggregate principal amount of 5.400% Notes due 2032 under a Form S-3 shelf; sale closed November 9, 2026.
- Terms Agreement dated November 2, 2026 with lead underwriters BMO Capital Markets, KeyBanc Capital Markets, Mizuho Securities USA and PNC Capital Markets.
- Net proceeds earmarked for general corporate purposes, including financing capital expenditures, working capital and repaying existing indebtedness.
- Notes issued under the indenture dated November 14, 2000 with The Bank of New York Mellon as successor trustee; McGuireWoods LLP provided the validity opinion.

## SEC filing metadata
- accession: 0001193125-26-453603
- form_type: 8-K
- ticker: NI
- cik: 0001111711
- company_name: NISOURCE INC.
- filed_at: 2026-11-09T21:10:23+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1111711/000119312526453603/0001193125-26-453603-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1111711/000119312526453603/d166935d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-453603
- JSON: https://secwatch.observer/filing/0001193125-26-453603.json
- Plain text: https://secwatch.observer/filing/0001193125-26-453603.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.