{"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","discovered_at":"2026-05-14T18:04:16.370386+00:00","generated_at":"2026-06-28T02:59:30.301237+00:00","sec_items":["5.02","7.01","9.01"],"event_type":"leadership","sentiment":"neutral","materiality_score":0.3,"calibrated_materiality_score":0.3,"confidence":"high","headline":"Century Aluminum appoints Jennifer Bush as independent director, expands board to six","bullets":["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."],"urls":{"canonical":"https://secwatch.observer/filing/0000949157-21-000138","json":"https://secwatch.observer/filing/0000949157-21-000138.json","markdown":"https://secwatch.observer/filing/0000949157-21-000138.md","text":"https://secwatch.observer/filing/0000949157-21-000138.txt","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"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-28T02:59:30.301237+00:00"},"review":{"review_status":"machine_generated","human_reviewed":false,"corrected":false,"correction_note":null,"correction_timestamp":null,"superseded_by":null,"related_filings":[]},"source_grounded_claims":[{"claim_id":"4695c9d13f","claim":"Jennifer Bush was appointed as director at CENTURY ALUMINUM CO.","evidence_excerpt":"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_source":"SEC 8-K Item 5.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/949157/000094915721000138/0000949157-21-000138-index.htm","confidence":0.95,"family_label":"Executive change","details":[{"label":"Action","value":"appointed"},{"label":"Role","value":"director"}],"fact_type":"executive_change"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}