{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-26-399499","form_type":"8-K","ticker":"AA","cik":"0001675149","company_name":"Alcoa Corp","filed_at":"2026-09-23T20:33:30+00:00","discovered_at":"2026-09-23T20:34:00.284044+00:00","generated_at":"2026-09-23T20:34:13.331970+00:00","sec_items":["1.01","2.03","7.01","8.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.75,"calibrated_materiality_score":0.75,"confidence":"high","headline":"Alcoa closes $2.6B senior notes offering to fund South32 acquisition cash consideration","bullets":["Issued $1.5B of 6.625% notes due 2034 and $1.1B of 6.875% notes due 2036 via Alcoa subsidiaries.","Net proceeds fund ~$3.1B cash portion of acquisition of South32's bauxite, alumina, aluminum assets.","Terminated all remaining commitments under 364-day bridge term loan facility tied to acquisition.","Acquisition still subject to South32 shareholder approval, regulatory approvals, other customary conditions.","Special mandatory redemption of notes required if acquisition not completed by June 29, 2027 (or extended)."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-26-399499","json":"https://secwatch.observer/filing/0001193125-26-399499.json","markdown":"https://secwatch.observer/filing/0001193125-26-399499.md","text":"https://secwatch.observer/filing/0001193125-26-399499.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/1675149/000119312526399499/0001193125-26-399499-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/1675149/000119312526399499/aa-20260923.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-09-23T20:34:13.331970+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":[],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}