---
schema_version: "secwatch.filing_event.v1"
accession: "0001628280-23-000722"
form_type: "8-K"
ticker: "ZLAB"
cik: "0001704292"
company_name: "Zai Lab Ltd"
filed_at: "2023-01-09T23:59:59+00:00"
generated_at: "2026-06-20T18:01:12.697117+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# Zai Lab appoints former Biogen CEO Michel Vounatsos as independent director

## Summary
- Appointed Michel Vounatsos independent director effective Jan 7, 2023; chairs Commercial Committee and serves on R&D.
- Vounatsos was Biogen CEO (2017-2022) and previously President of MSD China; brings global and China commercial expertise.
- Compensation: $50k annual retainer, $15k for Commercial chair, $7.5k for R&D; restricted shares $750k vesting over 3 years.
- Press release notes Zai Lab has four marketed medicines and plans three more launches in near term.

## SEC filing metadata
- accession: 0001628280-23-000722
- form_type: 8-K
- ticker: ZLAB
- cik: 0001704292
- company_name: Zai Lab Ltd
- filed_at: 2023-01-09T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.45
- calibrated_materiality_score: 0.45
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1704292/000162828023000722/0001628280-23-000722-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1704292/000162828023000722/zlab-20230107.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001628280-23-000722
- JSON: https://secwatch.observer/filing/0001628280-23-000722.json
- Plain text: https://secwatch.observer/filing/0001628280-23-000722.txt

## Key facts
- Executive change
  Michel Vounatsos was appointed as independent director at Zai Lab Ltd.
  - Action: appointed
  - Role: independent director
  source text: On January 7, 2023, the Board of Directors (the “Board”) of Zai Lab Limited (the “Company”) appointed Michel Vounatsos as an independent director, effective immediately.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1704292/000162828023000722/0001628280-23-000722-index.htm

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