{"schema_version":"secwatch.filing_event.v1","accession":"0001193125-23-040753","form_type":"8-K","ticker":"AMGN","cik":"0000318154","company_name":"AMGEN INC","filed_at":"2023-02-16T23:59:59+00:00","discovered_at":"2026-05-14T18:03:47.599486+00:00","generated_at":"2026-06-19T09:49:23.151430+00:00","sec_items":["1.01","9.01"],"event_type":"debt","sentiment":"neutral","materiality_score":0.8,"calibrated_materiality_score":0.8,"confidence":"high","headline":"Amgen issues $24B of senior notes across eight tranches from 2025 to 2063","bullets":["$2B of 5.250% notes due 2025, $1.5B of 5.507% notes due 2026, $3.75B of 5.150% notes due 2028.","$2.75B of 5.250% notes due 2030, $4.25B of 5.250% notes due 2033, $2.75B of 5.600% notes due 2043.","$4.25B of 5.650% notes due 2053, $2.75B of 5.750% notes due 2063; total $24B aggregate principal.","Notes rank equal with other senior unsecured debt; closing expected March 2, 2023."],"urls":{"canonical":"https://secwatch.observer/filing/0001193125-23-040753","json":"https://secwatch.observer/filing/0001193125-23-040753.json","markdown":"https://secwatch.observer/filing/0001193125-23-040753.md","text":"https://secwatch.observer/filing/0001193125-23-040753.txt","edgar_index":"https://www.sec.gov/Archives/edgar/data/318154/000119312523040753/0001193125-23-040753-index.htm","edgar_primary_document":"https://www.sec.gov/Archives/edgar/data/318154/000119312523040753/d424593d8k.htm"},"model":{"generated_by":"deepseek-v4-flash:cloud@v2","generated_at":"2026-06-19T09:49:23.151430+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":"98a49b8d9613b113d68a7e77f15c867b7090073e","claim":"AMGEN INC entered into Underwriting Agreement with Citigroup Global Markets Inc., BofA Securities, Inc., Goldman Sachs & Co. LLC and Mizuho Securities USA LLC, as representatives of the several underwriters valued at $2,000,000,000 aggregate principal amount of the Company’s 5.250% Senior Notes due 2025, $1,500,000, (effective 2023-02-15).","evidence_excerpt":"On February 15, 2023, Amgen Inc. (the “Company”) entered into an underwriting agreement (the “Underwriting Agreement”) with Citigroup Global Markets Inc., BofA Securities, Inc., Goldman Sachs & Co. LLC and Mizuho Securities USA LLC, as representatives of the several underwriters named therein (the “Underwriters”), to issue and sell to the Underwriters $2,000,000,000 aggregate principal amount of the Company’s 5.250% Senior Notes due 2025 (the “2025 Notes”), $1,500,000,000 aggregate principal amount of the Company’s 5.507% Senior Notes due 2026 (the “2026 Notes”), $3,750,000,000 aggregate principal amount of the Company’s 5.150% Senior Notes due 2028 (the “2028 Notes”), $2,750,000,000 aggregate principal amount of the Company’s 5.250% Senior Notes due 2030 (the “2030 Notes”), $4,250,000,000 aggregate principal amount of the Company’s 5.250% Senior Notes due 2033 (the “2033 Notes”), $2,750,000,000 aggregate principal amount of the Company’s 5.600% Senior Notes due 2043 (the “2043 Notes”)","evidence_source":"SEC 8-K Item 1.01/1.02","evidence_url":"https://www.sec.gov/Archives/edgar/data/318154/000119312523040753/0001193125-23-040753-index.htm","confidence":0.9,"family_label":"Material Agreements","details":[{"label":"Action","value":"entry"},{"label":"Agreement","value":"underwriting"},{"label":"Counterparty","value":"Citigroup Global Markets Inc., BofA Securities, Inc., Goldman Sachs & Co. LLC and Mizuho Securities USA LLC, as representatives of the several underwriters"},{"label":"Value","value":"$2,000,000,000 aggregate principal amount of the Company’s 5.250% Senior Notes due 2025, $1,500,000,"},{"label":"Effective","value":"2023-02-15"}],"fact_type":"material_agreement"}],"license":"Source filings: public domain (SEC EDGAR). Summaries (headline + bullets): CC-BY-4.0; attribute https://secwatch.observer"}