---
schema_version: "secwatch.filing_event.v1"
accession: "0001703057-25-000029"
form_type: "8-K"
ticker: "ABCL"
cik: "0001703057"
company_name: "AbCellera Biologics Inc."
filed_at: "2025-11-12T23:59:59+00:00"
generated_at: "2026-05-16T21:19:43.354765+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.45
calibrated_materiality_score: 0.45
confidence: "high"
source: SEC EDGAR
---

# AbCellera appoints Dr. Stephen Quake to board; Dr. Andrew Lo resigns

## Summary
- Dr. Stephen Quake (Stanford professor, Chan Zuckerberg Biohub founder) appointed independent director effective Nov 10, 2025.
- Quake joins Audit and Nominating and Corporate Governance committees; qualifies as independent under NASDAQ rules.
- Dr. Andrew Lo resigned effective Nov 10, 2025; resignation not due to any disagreement with company.
- Lo served on board since Dec 2021; was on Audit and Nominating and Corporate Governance committees.
- Quake will receive standard non-employee director compensation per company policy.

## SEC filing metadata
- accession: 0001703057-25-000029
- form_type: 8-K
- ticker: ABCL
- cik: 0001703057
- company_name: AbCellera Biologics Inc.
- filed_at: 2025-11-12T23:59:59+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/1703057/000170305725000029/0001703057-25-000029-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1703057/000170305725000029/abcl-20251110.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001703057-25-000029
- JSON: https://secwatch.observer/filing/0001703057-25-000029.json
- Plain text: https://secwatch.observer/filing/0001703057-25-000029.txt

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