---
schema_version: "secwatch.filing_event.v1"
accession: "0001193125-26-211948"
form_type: "8-K"
ticker: "CTKB"
cik: "0001831915"
company_name: "Cytek Biosciences, Inc."
filed_at: "2026-05-07T23:59:59+00:00"
generated_at: "2026-05-14T22:00:21.036718+00:00"
event_type: "earnings"
sentiment: "negative"
materiality_score: 0.75
calibrated_materiality_score: 0.75
confidence: "high"
source: SEC EDGAR
---

# Cytek Q1 revenue $44.1M (+6% YoY); net loss widens to $18.9M; reaffirms FY guidance

## Summary
- Total revenue $44.1M (+6% YoY); service revenue $15.4M (+15%).
- Installed base 3,789 instruments (+125 units); TTM recurring revenue 35% of total (up from 31%).
- GAAP net loss $18.9M vs $11.4M; adjusted EBITDA loss $9.1M vs $3.3M loss.
- G&A expenses up 43% YoY driven by litigation, consulting, and bad debt reserves.
- Reaffirms FY2026 revenue guidance $205M-$212M (2-5% growth).

## SEC filing metadata
- accession: 0001193125-26-211948
- form_type: 8-K
- ticker: CTKB
- cik: 0001831915
- company_name: Cytek Biosciences, Inc.
- filed_at: 2026-05-07T23:59:59+00:00
- event_type: earnings
- sentiment: negative
- materiality_score: 0.75
- calibrated_materiality_score: 0.75
- confidence: high
- sec_items: 2.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/1831915/000119312526211948/0001193125-26-211948-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/1831915/000119312526211948/d146722d8k.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0001193125-26-211948
- JSON: https://secwatch.observer/filing/0001193125-26-211948.json
- Plain text: https://secwatch.observer/filing/0001193125-26-211948.txt

## Source-grounded claims
- claim_id: b16d98bc010c1e9ee7abba810f081145ed8930fb
  claim: Cytek Biosciences, Inc. reported first quarter ended March 31, 2026 results: revenue $44.1 million, net income Net loss in the first quarter of 2026 was $18.9 million. Guidance reaffirmed.
  evidence_excerpt: cell analysis solutions company, today reported financial results for the first quarter ended March 31, 2026. Recent Highlights • Total revenue for the first quarter of 2026 was $44.1 million, representing a 6% increase compared to the first quarter of 2025 • Service revenue for the first quarter of 2026 was $15.4 million, representing a 15% increase compared to
  evidence_url: https://www.sec.gov/Archives/edgar/data/1831915/000119312526211948/0001193125-26-211948-index.htm

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