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Cytek Biosciences, Inc. (CTKB)

Cytek Biosciences, Inc. at a glance — key fundamentals, SEC filings, insider buying and selling, and earnings dates.

Cytek Biosciences, Inc. (CTKB) is a Medical - Devices company based in US with a market capitalization of $551.6M. Revenue grew 0.5% year-over-year and free cash flow was negative at -$8.8M. This page tracks CTKB's SEC filings, insider buying and selling, earnings dates, and key fundamentals in one place.

US · 663 employees · IPO Jul 23, 2021

Valuation

Valuation & price

$3.40 · as of May 17, 2026 · -42.1% vs 52w high

—

P/E ratio

Latest-FY diluted EPS

1.61

P/B ratio

Market cap ÷ book equity

—

Dividend yield

Price — last 12 months

$5.88$4.49$3.10Jul 25Dec 25Jun 26Jul 7, 25$3.40Jul 9, 25$3.58Jul 11, 25$3.45Jul 15, 25$3.25Jul 17, 25$3.30Jul 21, 25$3.10Jul 23, 25$3.37Jul 25, 25$3.69Jul 29, 25$3.60Jul 31, 25$3.60Aug 4, 25$3.84Aug 6, 25$3.89Aug 8, 25$4.03Aug 12, 25$4.03Aug 14, 25$4.08Aug 18, 25$4.06Aug 20, 25$4.00Aug 22, 25$4.15Aug 27, 25$4.09Aug 29, 25$4.14Sep 3, 25$3.94Sep 5, 25$4.02Sep 9, 25$3.93Sep 11, 25$4.13Sep 15, 25$3.96Sep 17, 25$3.92Sep 19, 25$3.78Sep 23, 25$3.71Sep 25, 25$3.39Sep 29, 25$3.38Oct 1, 25$3.61Oct 3, 25$3.97Oct 7, 25$3.79Oct 9, 25$3.94Oct 13, 25$3.96Oct 16, 25$4.02Oct 20, 25$4.04Oct 22, 25$4.11Oct 24, 25$4.26Oct 28, 25$4.20Oct 30, 25$3.82Nov 3, 25$3.94Nov 5, 25$4.01Nov 7, 25$4.62Nov 11, 25$4.79Nov 13, 25$4.57Nov 17, 25$5.29Nov 19, 25$5.26Nov 21, 25$5.88Nov 25, 25$5.82Nov 28, 25$5.65Dec 2, 25$5.39Dec 5, 25$4.99Dec 9, 25$4.85Dec 11, 25$4.97Dec 15, 25$4.64Dec 17, 25$4.81Dec 19, 25$4.95Dec 23, 25$5.04Dec 26, 25$5.10Dec 30, 25$5.04Jan 2, 26$4.92Jan 6, 26$5.52Jan 8, 26$5.43Jan 12, 26$5.80Jan 14, 26$5.56Jan 16, 26$5.40Jan 21, 26$5.52Jan 23, 26$5.27Jan 28, 26$5.12Jan 30, 26$5.00Feb 3, 26$5.05Feb 5, 26$4.50Feb 9, 26$4.46Feb 11, 26$4.36Feb 13, 26$4.24Feb 18, 26$4.20Feb 20, 26$4.43Feb 24, 26$4.36Feb 26, 26$4.40Mar 2, 26$4.43Mar 4, 26$4.41Mar 6, 26$4.22Mar 10, 26$4.23Mar 12, 26$4.00Mar 16, 26$4.13Mar 19, 26$4.51Mar 23, 26$4.71Mar 25, 26$4.60Mar 27, 26$4.32Mar 31, 26$4.37Apr 2, 26$4.53Apr 7, 26$4.60Apr 9, 26$4.62Apr 13, 26$4.59Apr 15, 26$4.69Apr 17, 26$4.61Apr 21, 26$4.63Apr 23, 26$4.26Apr 27, 26$4.46Apr 29, 26$4.44May 1, 26$4.62May 5, 26$4.78May 8, 26$4.61May 12, 26$4.04May 14, 26$3.36May 18, 26$3.55May 20, 26$3.77May 22, 26$4.01May 27, 26$3.99May 29, 26$4.19Jun 2, 26$4.19Jun 4, 26$4.33Jun 8, 26$4.04Jun 10, 26$4.05Jun 12, 26$3.96Jun 16, 26$4.09Jun 18, 26$3.77Jun 23, 26$4.07Jun 29, 26$4.34
$3.1052-week range$5.88
Loading valuation history…

Fundamentals

Key fundamentals

$551.6M

Market cap

0.5%

Revenue growth (YoY)

51.8%

Gross margin

-$8.8M

Free cash flow (USD)

-$237.8M

Net debt

Net cash position

-2.2%

Share dilution

2/5

Graham criteria passed

Defensive-investor screen

Healthcare

Sector

Trajectory

Long-term trends

Revenue by year

2019 → 2025

FY 2019$57.9MFY 2020$92.8MFY 2021$128.0MFY 2022$164.0MFY 2023$193.0MFY 2024$200.5MFY 2025$201.5M
$57.9M$201.5M

Free cash flow by year

2019 → 2025

FY 2019$-14.7MFY 2020$13.6MFY 2021$266.0KFY 2022$-22.1MFY 2023$454.0KFY 2024$21.9MFY 2025$-8.8M
-$14.7M-$8.8M

Gross margin by year

2021 → 2025

FY 202161.9%FY 202261.6%FY 202356.7%FY 202455.4%FY 202551.8%
61.9%51.8%

Value screen

Graham defensive-investor tests

Computing the scorecard — refreshing any stale inputs…

0

Insider buys · 90 days

0

Insider sells · 90 days

Earnings

Last report: 10-Q filed May 7, 2026

Next expected: not yet scheduled

On the tape

Recent SEC & insider activity

  • 8-K eventCLO DepartureJun 25, 2026Filing
  • 8-K eventAnnual Meeting ResultsJun 16, 2026Filing
  • 8-K eventExecutive ResignationJun 2, 2026Filing
  • 8-K eventEarnings ReleaseMay 7, 2026Filing
  • Quarterly report10-Q FiledMay 7, 2026Filing

Questions

Frequently asked questions

What is Cytek Biosciences, Inc.'s market cap?

Cytek Biosciences, Inc. (CTKB) has a market capitalization of $551.6M.

What is CTKB's P/E ratio?

A meaningful P/E ratio is not available for CTKB — the company's latest fiscal-year earnings per share is zero, negative, or not yet cached.

What is CTKB's price-to-book (P/B) ratio?

CTKB trades at 1.61 times book value per share.

Are insiders buying CTKB stock?

SEC Form 4 filings show no open-market insider buys at Cytek Biosciences, Inc. in the last 90 days (0 sells).

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Timeline

Every filing, insider trade & earnings on a price-anchored timeline

Filing Analyzer

Search the actual 10-K / 10-Q text with AI research angles

News

Latest press coverage in one feed

Data: SEC EDGAR filings and cached fundamental data; prices and ratios use the most recent cached quote and statements (may lag by up to a day). Educational and research purposes only. Not investment advice.