---
schema_version: "secwatch.filing_event.v1"
accession: "0000352541-22-000029"
form_type: "8-K"
ticker: "LNT"
cik: "0000352541"
company_name: "ALLIANT ENERGY CORP"
filed_at: "2022-03-01T23:59:59+00:00"
generated_at: "2026-06-27T03:15:48.019497+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Alliant Energy unit issues $350M of 3.600% Senior Notes due 2032

## Summary
- $350 million aggregate principal, 3.600% interest, maturity March 1, 2032.
- Fully and unconditionally guaranteed by Alliant Energy on senior unsecured basis.
- Net proceeds to reduce outstanding commercial paper and for general corporate purposes.
- Private offering under Rule 144A and Regulation S; not registered under Securities Act.
- Closing expected Feb 28, 2022, subject to customary conditions.

## SEC filing metadata
- accession: 0000352541-22-000029
- form_type: 8-K
- ticker: LNT
- cik: 0000352541
- company_name: ALLIANT ENERGY CORP
- filed_at: 2022-03-01T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 2.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/352541/000035254122000029/0000352541-22-000029-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/352541/000035254122000029/lnt-20220223.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000352541-22-000029
- JSON: https://secwatch.observer/filing/0000352541-22-000029.json
- Plain text: https://secwatch.observer/filing/0000352541-22-000029.txt

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