---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-298004"
form_type: "8-K"
ticker: "ALKS"
cik: "0001520262"
company_name: "Alkermes plc."
filed_at: "2026-07-08T12:00:15+00:00"
generated_at: "2026-07-08T12:05:19.304155+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Alkermes terminates authorized generic VIVITROL supply agreement with Amneal

## Summary
- Agreement dated Sept 9, 2025, for Amneal to distribute authorized generic VIVITROL in the US.
- Terminated July 6, 2026, after Amneal failed to meet certain terms and declined to order batches.
- No penalties incurred; both parties released all claims related to the agreement.
- No further payments or obligations owed by either party under the terminated agreement.

## SEC filing metadata
- accession: 0001193125-26-298004
- form_type: 8-K
- ticker: ALKS
- cik: 0001520262
- company_name: Alkermes plc.
- filed_at: 2026-07-08T12:00:15+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 1.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1520262/000119312526298004/0001193125-26-298004-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1520262/000119312526298004/alks-20260706.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-298004
- JSON: https://secwatch.observer/filing/0001193125-26-298004.json
- Plain text: https://secwatch.observer/filing/0001193125-26-298004.txt

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