---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-168396"
form_type: "8-K"
ticker: "AMRN"
cik: "0000897448"
company_name: "AMARIN CORP PLCUK"
filed_at: "2022-06-06T23:59:59+00:00"
generated_at: "2026-06-25T04:33:17.095115+00:00"
event_type: "other_material"
sentiment: "negative"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Amarin cuts US workforce ~65%, expects $100M savings; CFO Kalb out, Reilly in

## Summary
- US commercial team reduced ~90% from pre-pandemic levels; total employee base cut >40%.
- Expects ~$100M in operating cost savings over 12 months; $10M restructuring charge in Q2 2022.
- CFO Michael Kalb resigns to pursue other interests; Tom Reilly appointed CFO effective June 20, 2022.
- Reilly receives $525K base salary, 50% bonus target, $100K sign-on cash, plus equity awards.
- Restructuring driven by generic competition to Vascepa in the US; company focuses on European launches.

## SEC filing metadata
- accession: 0001193125-22-168396
- form_type: 8-K
- ticker: AMRN
- cik: 0000897448
- company_name: AMARIN CORP PLCUK
- filed_at: 2022-06-06T23:59:59+00:00
- event_type: other_material
- sentiment: negative
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 2.05, 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/897448/000119312522168396/0001193125-22-168396-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/897448/000119312522168396/d100724d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-168396
- JSON: https://secwatch.observer/filing/0001193125-22-168396.json
- Plain text: https://secwatch.observer/filing/0001193125-22-168396.txt

## Key facts
- Executive change
  Michael W. Kalb resigned as Senior Vice President and Chief Financial Officer at AMARIN CORP PLCUK.
  - Action: resigned
  - Role: Senior Vice President and Chief Financial Officer
  source text: On June 1, 2022, Michael W. Kalb, Amarin’s Senior Vice President and Chief Financial Officer (and principal accounting officer) notified Amarin that he would be resigning from the Company
  evidence_url: https://www.sec.gov/Archives/edgar/data/897448/000119312522168396/0001193125-22-168396-index.htm
- Executive change
  Tom Reilly was appointed as Senior Vice President and Chief Financial Officer at AMARIN CORP PLCUK.
  - Action: appointed
  - Role: Senior Vice President and Chief Financial Officer
  source text: on June 6, 2022, Amarin announced the appointment of Tom Reilly as Amarin’s new Senior Vice President and Chief Financial Officer (and principal accounting officer) (the “ CFO ”) as successor to Mr. Kalb, effective June 20, 2022
  evidence_url: https://www.sec.gov/Archives/edgar/data/897448/000119312522168396/0001193125-22-168396-index.htm

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