---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-21-225716"
form_type: "8-K"
ticker: "CTKB"
cik: "0001831915"
company_name: "Cytek Biosciences, Inc."
filed_at: "2021-07-27T23:59:59+00:00"
generated_at: "2026-06-30T02:16:26.670768+00:00"
event_type: "other_material"
sentiment: "positive"
materiality_score: 0.85
calibrated_materiality_score: 0.85
confidence: "high"
source: SEC EDGAR
---

# Cytek Biosciences closes IPO of 14.56M shares at $17.00 per share, raising $200M gross

## Summary
- Closed IPO on July 27, 2021; issued 14,564,635 shares at $17.00 per share.
- Gross proceeds to company were $200 million before underwriting discounts and expenses.
- Offering included 11,764,706 shares by company and 2,799,929 shares by selling stockholders.
- Filed amended and restated certificate of incorporation and bylaws effective upon closing.

## SEC filing metadata
- accession: 0001193125-21-225716
- form_type: 8-K
- ticker: CTKB
- cik: 0001831915
- company_name: Cytek Biosciences, Inc.
- filed_at: 2021-07-27T23:59:59+00:00
- event_type: other_material
- sentiment: positive
- materiality_score: 0.85
- calibrated_materiality_score: 0.85
- confidence: high
- sec_items: 5.03, 8.01, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1831915/000119312521225716/0001193125-21-225716-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1831915/000119312521225716/d183956d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-21-225716
- JSON: https://secwatch.observer/filing/0001193125-21-225716.json
- Plain text: https://secwatch.observer/filing/0001193125-21-225716.txt

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