---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-012983"
form_type: "8-K"
ticker: "AMRN"
cik: "0000897448"
company_name: "AMARIN CORP PLCUK"
filed_at: "2023-04-17T23:59:59+00:00"
generated_at: "2026-06-17T01:42:23.020927+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.55
calibrated_materiality_score: 0.55
confidence: "high"
source: SEC EDGAR
---

# Amarin appoints Aaron Berg as Interim CEO and adds Oliver O'Connor to Board, effective April 17, 2023

## Summary
- Aaron Berg, EVP President-U.S., named Interim CEO and President; board searching for permanent CEO.
- Berg's annual base salary set at $700,000; target bonus remains 50% of base salary.
- Oliver O'Connor appointed to Board and Nominating & Corporate Governance Committee.
- O'Connor brings 30+ years in government, policy, and pharma; currently CEO of Irish Pharmaceutical Healthcare Association.
- Board expands to 8 directors, all independent, including one Irish-domiciled member.

## SEC filing metadata
- accession: 0000950170-23-012983
- form_type: 8-K
- ticker: AMRN
- cik: 0000897448
- company_name: AMARIN CORP PLCUK
- filed_at: 2023-04-17T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.55
- calibrated_materiality_score: 0.55
- confidence: high
- sec_items: 5.02, 7.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/897448/000095017023012983/0000950170-23-012983-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/897448/000095017023012983/amrn-20230417.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-012983
- JSON: https://secwatch.observer/filing/0000950170-23-012983.json
- Plain text: https://secwatch.observer/filing/0000950170-23-012983.txt

## Key facts
- Executive change
  Aaron Berg was appointed as Interim Chief Executive Officer and President at AMARIN CORP PLCUK.
  - Action: appointed
  - Role: Interim Chief Executive Officer and President
  source text: On April 17, 2023, the Board of Directors (the “Board”) of Amarin Corporation plc (the “Company”) appointed Aaron Berg, current Executive Vice President, President-U.S. of the Company, as the Interim Chief Executive Officer and President of the Company and as the interim principal executive officer of the Company.
  evidence_url: https://www.sec.gov/Archives/edgar/data/897448/000095017023012983/0000950170-23-012983-index.htm
- Executive change
  Oliver O'Connor was appointed as Director at AMARIN CORP PLCUK.
  - Action: appointed
  - Role: Director
  source text: On April 17, 2023, the Board appointed Oliver O’Connor, 61, to the Board to a term commencing on such date.
  evidence_url: https://www.sec.gov/Archives/edgar/data/897448/000095017023012983/0000950170-23-012983-index.htm

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