---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-25-052307"
form_type: "8-K"
ticker: "AMRN"
cik: "0000897448"
company_name: "AMARIN CORP PLCUK"
filed_at: "2025-04-09T23:59:59+00:00"
generated_at: "2026-05-23T18:45:09.296762+00:00"
event_type: "other_material"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Amarin confirms 1-for-20 ADS reverse split effective April 11 to meet Nasdaq $1 minimum bid

## Summary
- ADS ratio changes from 1:1 to 1:20 effective April 11, 2025, to meet Nasdaq $1.00 minimum bid price.
- No assurance that post-split ADS price will equal or exceed 20x pre-split price.
- Certificated ADS holders must surrender; DRS/DTC holders automatic exchange. No fractional ADSs issued.
- Fractional entitlements sold; net cash proceeds distributed to holders by depositary bank.
- Ordinary shares unchanged; trading symbol remains AMRN.

## SEC filing metadata
- accession: 0000950170-25-052307
- form_type: 8-K
- ticker: AMRN
- cik: 0000897448
- company_name: AMARIN CORP PLCUK
- filed_at: 2025-04-09T23:59:59+00:00
- event_type: other_material
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 3.03, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/897448/000095017025052307/0000950170-25-052307-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/897448/000095017025052307/amrn-20250409.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-25-052307
- JSON: https://secwatch.observer/filing/0000950170-25-052307.json
- Plain text: https://secwatch.observer/filing/0000950170-25-052307.txt

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