---
schema_version: "secwatch.filing_event.v1"
accession: "0000949157-21-000138"
form_type: "8-K"
ticker: "CENX"
cik: "0000949157"
company_name: "CENTURY ALUMINUM CO"
filed_at: "2021-12-08T23:59:59+00:00"
generated_at: "2026-06-28T02:59:30.301237+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Century Aluminum appoints Jennifer Bush as independent director, expands board to six

## Summary
- Board increased from five to six members; Bush appointed effective December 6, 2021 with term at 2022 annual meeting.
- Bush has 25 years at Cummins Inc., currently VP of Sales & Service North America overseeing $5B segment with 250+ locations.
- Appointed to Audit, Governance & Nominating, Compensation, and Health, Safety & Sustainability Committees.
- Received pro-rata award of 7,841 time-vesting share units under non-employee director compensation program.

## SEC filing metadata
- accession: 0000949157-21-000138
- form_type: 8-K
- ticker: CENX
- cik: 0000949157
- company_name: CENTURY ALUMINUM CO
- filed_at: 2021-12-08T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/949157/000094915721000138/0000949157-21-000138-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/949157/000094915721000138/cenx-20211206.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000949157-21-000138
- JSON: https://secwatch.observer/filing/0000949157-21-000138.json
- Plain text: https://secwatch.observer/filing/0000949157-21-000138.txt

## Key facts
- Executive change
  Jennifer Bush was appointed as director at CENTURY ALUMINUM CO.
  - Action: appointed
  - Role: director
  source text: On December 6, 2021, the Board of Directors (the "Board") of Century Aluminum Company (the “Company”) increased the size of the Board from five to six members and appointed Jennifer ("Jenny") Bush as an independent director
  evidence_url: https://www.sec.gov/Archives/edgar/data/949157/000094915721000138/0000949157-21-000138-index.htm

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