---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-272329"
form_type: "8-K"
ticker: "NI"
cik: "0001111711"
company_name: "NISOURCE INC."
filed_at: "2025-11-07T23:59:59+00:00"
generated_at: "2026-05-16T22:55:34.837996+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# NiSource issues $1B in 5.750% junior subordinated notes due 2056

## Summary
- Aggregate principal $1B; notes bear 5.750% fixed through July 15, 2031, then reset at 5-yr Treasury + 2.035% with 5.750% floor.
- Interest payable semi-annually; notes mature July 15, 2056; optional redemption by company during specified periods or upon rating/tax events.
- Proceeds for general corporate purposes, including capex, working capital, and repayment of existing indebtedness.
- Company may defer interest for up to 20 consecutive semiannual periods if no event of default, with restrictions on dividends and stock repurchases.

## SEC filing metadata
- accession: 0001193125-25-272329
- form_type: 8-K
- ticker: NI
- cik: 0001111711
- company_name: NISOURCE INC.
- filed_at: 2025-11-07T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1111711/000119312525272329/0001193125-25-272329-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1111711/000119312525272329/d31184d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-272329
- JSON: https://secwatch.observer/filing/0001193125-25-272329.json
- Plain text: https://secwatch.observer/filing/0001193125-25-272329.txt

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