---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-25-251791"
form_type: "8-K"
ticker: "KALU"
cik: "0000811596"
company_name: "KAISER ALUMINUM CORP"
filed_at: "2025-10-27T23:59:59+00:00"
generated_at: "2026-05-17T02:16:51.697275+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Kaiser Aluminum prices $500M of 5.875% senior notes due 2034 to redeem 2028 notes

## Summary
- $500M aggregate principal of 5.875% senior notes due 2034 priced in private transaction; closing expected Nov 5, 2025.
- Net proceeds, with revolver borrowings/cash on hand, to redeem all outstanding 4.625% senior notes due 2028.
- Conditional notice of redemption for 2028 notes given Oct 27, 2025; redemption set for Nov 6, 2025, subject to successful issuance.
- Notes will be guaranteed by domestic subsidiaries that are borrowers or guarantors under Kaiser's revolving credit facility.

## SEC filing metadata
- accession: 0001193125-25-251791
- form_type: 8-K
- ticker: KALU
- cik: 0000811596
- company_name: KAISER ALUMINUM CORP
- filed_at: 2025-10-27T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/811596/000119312525251791/0001193125-25-251791-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/811596/000119312525251791/d68116d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-25-251791
- JSON: https://secwatch.observer/filing/0001193125-25-251791.json
- Plain text: https://secwatch.observer/filing/0001193125-25-251791.txt

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