---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-064980"
form_type: "8-K"
ticker: "AMRN"
cik: "0000897448"
company_name: "AMARIN CORP PLCUK"
filed_at: "2025-05-07T23:59:59+00:00"
generated_at: "2026-05-22T10:18:05.359865+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Amarin Q1 2025 net revenue $42M (-26% YoY); net loss $15.7M, wider than prior year

## Summary
- Total net revenue $42.0M vs $56.5M in Q1 2024, down 26% due to generic competition in U.S.
- U.S. net product revenue $35.7M (down from $48.1M); Europe rose to $5.4M (from $1.9M).
- GAAP net loss $15.7M ($0.04/sh) vs $10.0M ($0.02/sh) in Q1 2024; adjusted net loss $9.4M ($0.02/sh).
- Cash & investments $281.8M at March 31, 2025, vs $308.2M a year earlier.
- Regained Nasdaq compliance after 1-for-20 ADS ratio change effective April 11, 2025.

## SEC filing metadata
- accession: 0000950170-25-064980
- form_type: 8-K
- ticker: AMRN
- cik: 0000897448
- company_name: AMARIN CORP PLCUK
- filed_at: 2025-05-07T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/897448/000095017025064980/0000950170-25-064980-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/897448/000095017025064980/amrn-20250507.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-064980
- JSON: https://secwatch.observer/filing/0000950170-25-064980.json
- Plain text: https://secwatch.observer/filing/0000950170-25-064980.txt

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