---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-224115"
form_type: "8-K"
ticker: "AMGN"
cik: "0000318154"
company_name: "AMGEN INC"
filed_at: "2022-08-18T23:59:59+00:00"
generated_at: "2026-06-23T22:55:24.777654+00:00"
event_type: "debt"
sentiment: "neutral"
materiality_score: 0.6
calibrated_materiality_score: 0.6
confidence: "high"
source: SEC EDGAR
---

# Amgen issues $3B in senior notes across three tranches with maturities 2029-2053

## Summary
- Issued $1.25B of 4.050% Senior Notes due 2029, $750M of 4.200% due 2033, and $1.0B of 4.875% due 2053.
- Net proceeds approximately $2.976B after underwriters' discounts and estimated offering expenses.
- Notes are senior unsecured and rank equally with other senior unsecured indebtedness of the company.
- Interest payable semi-annually; first payment Feb 18, 2023 (2029 notes) and March 1, 2023 (2033 and 2053 notes).
- Change-in-control triggering event allows holders to require repurchase at 101% of principal plus accrued interest.

## SEC filing metadata
- accession: 0001193125-22-224115
- form_type: 8-K
- ticker: AMGN
- cik: 0000318154
- company_name: AMGEN INC
- filed_at: 2022-08-18T23:59:59+00:00
- event_type: debt
- sentiment: neutral
- materiality_score: 0.6
- calibrated_materiality_score: 0.6
- confidence: high
- sec_items: 1.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/318154/000119312522224115/0001193125-22-224115-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/318154/000119312522224115/d280175d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-224115
- JSON: https://secwatch.observer/filing/0001193125-22-224115.json
- Plain text: https://secwatch.observer/filing/0001193125-22-224115.txt

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