---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-24-050887"
form_type: "8-K"
ticker: "ALKS"
cik: "0001520262"
company_name: "Alkermes plc."
filed_at: "2024-05-01T23:59:59+00:00"
generated_at: "2026-06-03T02:45:29.657994+00:00"
event_type: "earnings"
sentiment: "positive"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# Alkermes Q1 2024 revenue $350.4M, GAAP net income $38.9M, LYBALVI sales up 50% YoY

## Summary
- Total revenues of $350.4M vs $287.6M in Q1 2023; GAAP net income from continuing ops $38.9M ($0.23 EPS) vs loss of $12.1M.
- LYBALVI net sales $57.0M (+50% YoY); VIVITROL $97.7M; ARISTADA $78.9M; royalty revenue $62.7M from J&J sublicense.
- Non-GAAP net income from continuing ops $76.2M vs $30.1M; cash & investments $807.8M, debt $290.1M.
- R&D expense $67.6M (+6%) driven by ALKS 2680; SG&A $179.7M (+7%) on LYBALVI DTC campaign.
- Company reiterates 2024 financial expectations; positive phase 1b data for ALKS 2680 in narcolepsy type 2.

## SEC filing metadata
- accession: 0000950170-24-050887
- form_type: 8-K
- ticker: ALKS
- cik: 0001520262
- company_name: Alkermes plc.
- filed_at: 2024-05-01T23:59:59+00:00
- event_type: earnings
- sentiment: positive
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1520262/000095017024050887/0000950170-24-050887-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1520262/000095017024050887/alks-20240501.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-24-050887
- JSON: https://secwatch.observer/filing/0000950170-24-050887.json
- Plain text: https://secwatch.observer/filing/0000950170-24-050887.txt

## Key facts
- Earnings Releases
  Alkermes plc. updated its first quarter of 2024 guidance (reaffirmed).
  - Period: first quarter of 2024
  - Guidance: reaffirmed
  - Result: reported results
  source text: On May 1, 2024, Alkermes plc (the “Company”) announced financial results for the three months ended March 31, 2024.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1520262/000095017024050887/0000950170-24-050887-index.htm

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