---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-23-146219"
form_type: "8-K"
ticker: "AMGN"
cik: "0000318154"
company_name: "AMGEN INC"
filed_at: "2023-05-16T23:59:59+00:00"
generated_at: "2026-06-15T00:10:05.154676+00:00"
event_type: "regulatory"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# FTC sues to block Amgen's Horizon acquisition; Amgen vows to fight

## Summary
- FTC filed complaint in federal court seeking to enjoin acquisition of Horizon Therapeutics.
- Amgen calls FTC's bundling theory 'entirely speculative' and says no prior deal blocked on that theory.
- Amgen committed not to bundle Horizon products at issue, but FTC still proceeded with lawsuit.
- Amgen intends to work with court to close transaction by mid-December.

## SEC filing metadata
- accession: 0001193125-23-146219
- form_type: 8-K
- ticker: AMGN
- cik: 0000318154
- company_name: AMGEN INC
- filed_at: 2023-05-16T23:59:59+00:00
- event_type: regulatory
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/318154/000119312523146219/0001193125-23-146219-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/318154/000119312523146219/d503983d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-23-146219
- JSON: https://secwatch.observer/filing/0001193125-23-146219.json
- Plain text: https://secwatch.observer/filing/0001193125-23-146219.txt

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