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Equity · Healthcare

CTKB

NASDAQ

Cytek Biosciences (CTKB)

5.35 USD +0.94% vs prior close Oct 13, 2026
Cytek Biosciences, Inc. price graph

This price chart is drawn by TradingView, from their own data, in an embed loaded from their servers.

Track this symbol on TradingView
Market cap
699.7M USD
Revenue, year to Dec 2025
201.5M USD
52-week range
3.36 USD – 6 USD
Avg volume
305.8K

as of Oct 13, 2026

Have Cytek Biosciences (CTKB) insiders bought or sold shares recently?

In the 90 days to 10 Nov 2026, no Cytek Biosciences insider bought or sold shares on the open market; all 9 Form 4 filings in that window were grants, exercises, tax withholding or transfers (SEC Form 4).

Form 4, 90 days to 10 Nov 2026, newest Form 4 filing 18 Aug 2026

0buys
0sells
9other filings
Have Cytek Biosciences (CTKB) insiders bought or sold shares recently?
ReportedInsiderTypeSharesValue
18 Aug 2026Chin RichardDirectorOption exercise6,107
18 Aug 2026MUIR GLENN PDirectorOption exercise3,086
18 Aug 2026Holder MichaelDirectorOption exercise2,181
18 Aug 2026Jiang WenbinPRESIDENT AND CEOOption exercise120,095
18 Aug 2026Jiang WenbinPRESIDENT AND CEOTax withheld36,269169K USD
18 Aug 2026Yan MingCHIEF TECHNOLOGY OFFICEROption exercise33,270
18 Aug 2026Yan MingCHIEF TECHNOLOGY OFFICERTax withheld8,08838K USD
18 Aug 2026McCombe William D.Chief Financial OfficerOption exercise35,420
18 Aug 2026McCombe William D.Chief Financial OfficerTax withheld11,90456K USD

Which funds hold Cytek Biosciences (CTKB)?

10 of the 45 institutional funds we track reported a Cytek Biosciences position for the quarter ended 30 Jun 2026 — a combined 62.6M USD; the latest of those filings landed 02 Sep 2026.

Form 13F

Which funds hold Cytek Biosciences (CTKB)?
FundPositionSharesValueShares q/q
Millennium ManagementAdded9,338,01041.4M USD+48.4%
Tudor Investment CorpAdded837,9133.7M USD+161.3%
AQR Capital ManagementHeld (±25%)813,9713.6M USD−10.8%
Citadel AdvisorsAdded721,4703.2M USD+53.1%
D. E. Shaw & Co.Added669,1823.0M USD+157.3%
Renaissance TechnologiesHeld (±25%)661,3002.9M USD−2.3%
Marshall WaceNew position441,7042.0M USD
Point72 Asset ManagementNew position422,3611.9M USD
Two Sigma InvestmentsAdded168,218745K USD+557.1%
Balyasny Asset ManagementNew position54,381241K USD

What has been filed or recorded for Cytek Biosciences (CTKB)?

The filings we hold for Cytek Biosciences, newest first: 6 quarterly earnings reports, 2 annual reports and 4 reported financial figures, the latest dated 30 Sep 2026. No next earnings date is announced in SEC filings yet.

What has been filed or recorded for Cytek Biosciences (CTKB)?
And
30 Sep 2026FinancialsTotal assets446.1M USDat period end
30 Sep 2026FinancialsTotal equity321.4M USDat period end
31 Dec 2025FinancialsRevenue201.5M USDfiscal year
31 Dec 2025FinancialsNet income−66.5M USDfiscal year
30 Sep 2024Quarterly earningsQ3 2024 reportedRevenue $52M
30 Jun 2024Quarterly earningsQ2 2024 reportedRevenue $47M
31 Mar 2024Quarterly earningsQ1 2024 reportedRevenue $45M
31 Dec 2023Annual reportFY 2023 reportedEPS −0.09 USDRevenue $193M
30 Sep 2023Quarterly earningsQ3 2023 reportedRevenue $48M
30 Jun 2023Quarterly earningsQ2 2023 reportedRevenue $50M
31 Mar 2023Quarterly earningsQ1 2023 reportedRevenue $37M
31 Dec 2022Annual reportFY 2022 reportedEPS 0.02 USDRevenue $3M

What do people ask about Cytek Biosciences (CTKB)?

From live data
What did Cytek Biosciences shares close at?5.35

Cytek Biosciences closed at 5.35 USD on 13 Oct 2026, up 0.94% on the close before. That is the end-of-day price from Finazon, not a live quote.

What is Cytek Biosciences’ market cap?699.7M

Cytek Biosciences is worth 699.7M USD by market value as of 13 Oct 2026, which is the share price times the shares on issue from its SEC filings.

What is Cytek Biosciences’ revenue?201.5M

Cytek Biosciences reported revenue of 201.5M USD for the year ended 31 Dec 2025, as filed with the SEC. See Filings

Have Cytek Biosciences insiders bought or sold shares recently?9 filings

In the 90 days to 10 Nov 2026, no Cytek Biosciences insider bought or sold shares on the open market; all 9 Form 4 filings in that window were grants, exercises, tax withholding or transfers (SEC Form 4). See Insiders

Which funds own Cytek Biosciences?10 of 45

10 of the 45 funds we track reported a Cytek Biosciences position for the quarter ended 30 Jun 2026, per their SEC Form 13F filings. The largest reported positions were Millennium Management, Tudor Investment Corp and AQR Capital Management. See Funds

When did Cytek Biosciences last report earnings?

Cytek Biosciences last reported earnings on 30 Sep 2024 for Q3 2024; no next date is announced in SEC filings yet. See Filings

Answers are generated from the live figures on this page — Reddit crowd data, SEC filings and open company records — and update as the data does.

References
  1. Finazonprior-day close, indicative (IEX-derived, not the official close)
  2. TradingViewthe price chart widget, drawn by TradingView from their own data
  3. SEC EDGARForm 4 filings (insider transactions)
  4. SEC EDGAR13F filings
  5. SEC EDGARXBRL company facts, latest period ended 30 Sep 2026
  6. SEC EDGARreported earnings figures and scheduled report dates
  7. SEC EDGARValuation computed from SEC EDGAR filings