---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-001237"
form_type: "8-K"
ticker: "KALU"
cik: "0000811596"
company_name: "KAISER ALUMINUM CORP"
filed_at: "2023-01-26T23:59:59+00:00"
generated_at: "2026-06-20T08:50:35.677365+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.4
calibrated_materiality_score: 0.4
confidence: "low"
source: SEC EDGAR
---

# Kaiser Aluminum to change non-GAAP presentation; limited details in filing excerpt

## Summary
- Non-GAAP financial measure presentation changes effective Q4 2022; comparative prior-period data included.
- Press release also announces date of Q4/full-year 2022 earnings release (date not in provided excerpt).
- No specific financial metrics or guidance were disclosed in this 8-K or truncated exhibit.

## SEC filing metadata
- accession: 0000950170-23-001237
- form_type: 8-K
- ticker: KALU
- cik: 0000811596
- company_name: KAISER ALUMINUM CORP
- filed_at: 2023-01-26T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.4
- calibrated_materiality_score: 0.4
- confidence: low
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/811596/000095017023001237/0000950170-23-001237-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/811596/000095017023001237/kalu-20230126.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-001237
- JSON: https://secwatch.observer/filing/0000950170-23-001237.json
- Plain text: https://secwatch.observer/filing/0000950170-23-001237.txt

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