---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-22-022381"
form_type: "8-K"
ticker: "BIIB"
cik: "0000875045"
company_name: "BIOGEN INC."
filed_at: "2022-01-31T23:59:59+00:00"
generated_at: "2026-06-27T13:53:26.038965+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.3
calibrated_materiality_score: 0.3
confidence: "high"
source: SEC EDGAR
---

# Biogen announces retirement of directors Nancy Leaming and Brian Posner effective at 2022 annual meeting

## Summary
- Nancy Leaming and Brian Posner will retire from Biogen Board effective at the 2022 annual meeting of stockholders.
- Both directors have served since 2008; Leaming on Audit Committee, Posner as Chair of Compensation Management and Development Committee.
- Retirements are not related to any disagreement with the Board or the Company.
- No replacements have been announced yet.

## SEC filing metadata
- accession: 0001193125-22-022381
- form_type: 8-K
- ticker: BIIB
- cik: 0000875045
- company_name: BIOGEN INC.
- filed_at: 2022-01-31T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.3
- calibrated_materiality_score: 0.3
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/875045/000119312522022381/0001193125-22-022381-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/875045/000119312522022381/d295583d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-22-022381
- JSON: https://secwatch.observer/filing/0001193125-22-022381.json
- Plain text: https://secwatch.observer/filing/0001193125-22-022381.txt

## Key facts
- Executive change
  Nancy L. Leaming departed as Director at BIOGEN INC..
  - Action: retire
  - Role: Director
  source text: Pursuant to the retirement provisions set forth in the Company’s Corporate Governance Principles, Nancy L. Leaming will also retire from the Board effective as of the Company’s 2022 annual meeting of stockholders.
  evidence_url: https://www.sec.gov/Archives/edgar/data/875045/000119312522022381/0001193125-22-022381-index.htm
- Executive change
  Brian S. Posner departed as Director at BIOGEN INC..
  - Action: retire
  - Role: Director
  source text: On January 25, 2022, Brian S. Posner notified Biogen Inc. (the “Company” or “Biogen”) that he will retire from the Biogen Board of Directors (the “Board”) effective as of the Company’s 2022 annual meeting of stockholders.
  evidence_url: https://www.sec.gov/Archives/edgar/data/875045/000119312522022381/0001193125-22-022381-index.htm

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