---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-233011"
form_type: "8-K"
ticker: "AMGN"
cik: "0000318154"
company_name: "AMGEN INC"
filed_at: "2023-09-12T23:59:59+00:00"
generated_at: "2026-06-10T21:27:09.266776+00:00"
event_type: "m_and_a"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Amgen and Horizon extend acquisition outside date to Dec 12, 2023; Irish court hearing Oct 5

## Summary
- First Extended End Date automatically extended to Second Extended End Date, December 12, 2023.
- Irish High Court set hearing for October 5, 2023 to consider sanction of scheme of arrangement.
- Automatic extension was previously contemplated in the Transaction Agreement dated December 11, 2022.

## SEC filing metadata
- accession: 0001193125-23-233011
- form_type: 8-K
- ticker: AMGN
- cik: 0000318154
- company_name: AMGEN INC
- filed_at: 2023-09-12T23:59:59+00:00
- event_type: m_and_a
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 8.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/318154/000119312523233011/0001193125-23-233011-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/318154/000119312523233011/d523167d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-233011
- JSON: https://secwatch.observer/filing/0001193125-23-233011.json
- Plain text: https://secwatch.observer/filing/0001193125-23-233011.txt

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