---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-24-217558"
form_type: "8-K"
ticker: "CTKB"
cik: "0001831915"
company_name: "Cytek Biosciences, Inc."
filed_at: "2024-09-12T23:59:59+00:00"
generated_at: "2026-05-31T05:17:21.324677+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Cytek Biosciences COO Paul Christopher Williams resigns effective Sept 27, 2024

## Summary
- COO Paul Christopher Williams resigned on Sept 9, 2024, effective Sept 27, 2024, to pursue another career opportunity.
- No replacement has been named; CEO Wenbin Jiang remains in charge.
- Resignation is voluntary and not due to any disagreement with the company.

## SEC filing metadata
- accession: 0001193125-24-217558
- form_type: 8-K
- ticker: CTKB
- cik: 0001831915
- company_name: Cytek Biosciences, Inc.
- filed_at: 2024-09-12T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1831915/000119312524217558/0001193125-24-217558-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1831915/000119312524217558/d891638d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-24-217558
- JSON: https://secwatch.observer/filing/0001193125-24-217558.json
- Plain text: https://secwatch.observer/filing/0001193125-24-217558.txt

## Key facts
- Executive change
  Paul Christopher Williams resigned as Chief Operating Officer at Cytek Biosciences, Inc..
  - Action: resigned
  - Role: Chief Operating Officer
  source text: On September 9, 2024, Paul Christopher Williams submitted his resignation from his position as the Chief Operating Officer of Cytek Biosciences, Inc. (the “Company”), effective as of September 27, 2024, to pursue another career opportunity.
  evidence_url: https://www.sec.gov/Archives/edgar/data/1831915/000119312524217558/0001193125-24-217558-index.htm

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