---
schema_version: "secwatch.filing_event.v1"
accession: "0000949157-23-000020"
form_type: "8-K"
ticker: "CENX"
cik: "0000949157"
company_name: "CENTURY ALUMINUM CO"
filed_at: "2023-02-23T23:59:59+00:00"
generated_at: "2026-06-19T03:56:17.225931+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Century Aluminum Q4 net loss $113.5M; adjusted EBITDA negative $12.4M

## Summary
- Q4 net sales $529.9M; reported net loss $113.5M ($1.24/share); adjusted net loss $31.3M ($0.31/share).
- Q4 Adjusted EBITDA negative $12.4M; shipments 169,471 tonnes, down from Q3.
- Full year 2022 net sales $2.8B (+26% YoY); reported net loss $14.1M; adjusted net income $25.6M ($0.26/share).
- Full year Adjusted EBITDA $143.8M; shipments 768,691 tonnes, down from 783,647 in 2021.
- Completed Mt. Holly restart at 75% capacity; low-carbon billet expansion in Iceland on track for Q1 2024 shipments.

## SEC filing metadata
- accession: 0000949157-23-000020
- form_type: 8-K
- ticker: CENX
- cik: 0000949157
- company_name: CENTURY ALUMINUM CO
- filed_at: 2023-02-23T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/949157/000094915723000020/0000949157-23-000020-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/949157/000094915723000020/cenx-20230223.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000949157-23-000020
- JSON: https://secwatch.observer/filing/0000949157-23-000020.json
- Plain text: https://secwatch.observer/filing/0000949157-23-000020.txt

## Key facts
- Earnings Releases
  CENTURY ALUMINUM CO reported fourth quarter ended December 31, 2022 results: revenue Net sales $529.9 million, net income Reported net loss of $(113.5) million, EPS reported net loss of $(1.24) per share; adjusted net loss of $(0.31) per share.
  - Period: fourth quarter ended December 31, 2022
  - Revenue: Net sales $529.9 million
  - Net income: Reported net loss of $(113.5) million
  - EPS: reported net loss of $(1.24) per share; adjusted net loss of $(0.31) per share
  - Result: reported results
  source text: Fourth Quarter 2022 Highlights • Net sales $529.9 million • Cost savings programs partially offset high power prices and other raw material cost pressure • Reported net loss of $(113.5) million, or $(1.24) per share; adjusted net loss of $(31.3) million, or $(0.31) per share; Adjusted EBITDA of $(12.4) million 1 • Norðurál named Environmental Company of the Year 2022 in Iceland • Strong total liquidity of $245.0 million as of December 31, 2022
  evidence_url: https://www.sec.gov/Archives/edgar/data/949157/000094915723000020/0000949157-23-000020-index.htm
- Earnings Releases
  CENTURY ALUMINUM CO reported full year ended December 31, 2022 results: revenue Net sales $2.8 billion, a 26% increase from prior year, net income Reported net loss of $(14.1) million, EPS reported net loss of $(0.15) per share; adjusted net income of $0.26 per share.
  - Period: full year ended December 31, 2022
  - Revenue: Net sales $2.8 billion, a 26% increase from prior year
  - Net income: Reported net loss of $(14.1) million
  - EPS: reported net loss of $(0.15) per share; adjusted net income of $0.26 per share
  - Result: reported results
  source text: Full Year 2022 Highlights • Net sales $2.8 billion, a 26% increase from prior year • Completed Mt. Holly restart project, reaching 75% of total capacity • Reported net loss of $(14.1) million, or $(0.15) per share; adjusted net income of $25.6 million, or $0.26 per share; Adjusted EBITDA of $143.8 million 1 • Continued expansion project into low-carbon billet production for our Grundartangi, Iceland smelter. Project remains on budget and on time for completion, with shipments expected to begin in Q124
  evidence_url: https://www.sec.gov/Archives/edgar/data/949157/000094915723000020/0000949157-23-000020-index.htm

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