---
schema_version: "secwatch.filing_event.v1"
accession: "0000950170-23-069042"
form_type: "8-K"
ticker: "ALKS"
cik: "0001520262"
company_name: "Alkermes plc."
filed_at: "2023-12-08T23:59:59+00:00"
generated_at: "2026-06-07T15:33:38.178098+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Director Nancy J. Wysenski retires from Alkermes board; Board size reduced to 10

## Summary
- Nancy J. Wysenski notified retirement on Dec 4, 2023, effective Dec 8, 2023, after 10 years of service.
- Board decreased size from 11 to 10 directors effective Dec 8, 2023.
- Frank Anders Wilson appointed as Lead Independent Director, effective Dec 8, 2023.

## SEC filing metadata
- accession: 0000950170-23-069042
- form_type: 8-K
- ticker: ALKS
- cik: 0001520262
- company_name: Alkermes plc.
- filed_at: 2023-12-08T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1520262/000095017023069042/0000950170-23-069042-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1520262/000095017023069042/alks-20231204.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000950170-23-069042
- JSON: https://secwatch.observer/filing/0000950170-23-069042.json
- Plain text: https://secwatch.observer/filing/0000950170-23-069042.txt

## Key facts
- Executive change
  Frank Anders Wilson was appointed as Lead Independent Director at Alkermes plc..
  - Action: appointed
  - Role: Lead Independent Director
  source text: appointed Frank Anders Wilson as the Lead Independent Director of the Board, in each case effective as of December 8, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1520262/000095017023069042/0000950170-23-069042-index.htm
- Executive change
  Nancy J. Wysenski retired as director at Alkermes plc..
  - Action: retired
  - Role: director
  source text: On December 4, 2023, following ten years of service, Nancy J. Wysenski notified Alkermes plc (the “Company”) of her decision to retire, for personal reasons, from the Company’s board of directors (the “Board”) and from any Board leadership positions and committees on which she serves, in each case effective as of December 8, 2023.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1520262/000095017023069042/0000950170-23-069042-index.htm

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