Cytek Biosciences (CTKB) Insider Trading & Ownership $3.93 -0.17 (-4.15%) Closing price 04:00 PM EasternExtended Trading$3.99 +0.06 (+1.53%) As of 06:11 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Insider Trades Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Cytek Biosciences (NASDAQ:CTKB) Insider Buying and Selling ActivityCurrentInsider OwnershipPercentage10.33%Number OfInsiders Buying(Last 12 Months)1Amount OfInsider Buying(Last 12 Months)$194.60KNumber OfInsiders Selling(Last 12 Months)0 Get CTKB Insider Trade Alerts Want to know when executives and insiders are buying or selling Cytek Biosciences stock? 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CTKB Insider Buying and Selling by Quarter Cytek Biosciences Insider and Congressional Trades History Insiders and Members of Congress Insiders Only Members of Congress Only Transaction Type Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 2 Years 3 Years Time Frame Start Date End Date Export to Excel Transaction DateNameTitleBuy/SellNumber of SharesAverage Share PriceTotal TransactionDetails6/2/2025William D MccombeCFOBuy35,000$2.78$97,300.00 6/2/2025William D MccombeCFOBuy35,000$2.78$97,300.00 (Data available from 1/1/2013 forward) CTKB Insider Trading Activity - Frequently Asked Questions Who is on Cytek Biosciences' Insider Roster? The list of insiders at Cytek Biosciences includes Jack Ball, Ming Yan, Patrik Jeanmonod, Wenbin Jiang, and William D Mccombe. Learn more on insiders at CTKB. What percentage of Cytek Biosciences stock is owned by insiders? 10.33% of Cytek Biosciences stock is owned by insiders. Learn more on CTKB's insider holdings. Which Cytek Biosciences insiders have been buying company stock? The following insider purchased CTKB shares in the last 24 months: William D Mccombe ($194,600.00). How much insider buying is happening at Cytek Biosciences? Insiders have purchased a total of 70,000 CTKB shares in the last 24 months for a total of $194,600.00 bought. Which Cytek Biosciences insiders have been selling company stock? The following insiders have sold CTKB shares in the last 24 months: Ming Yan ($801,100.00), Patrik Jeanmonod ($82,500.00), and Wenbin Jiang ($193,400.00). How much insider selling is happening at Cytek Biosciences? Insiders have sold a total of 173,900 Cytek Biosciences shares in the last 24 months for a total of $1,077,000.00 sold. Cytek Biosciences Key ExecutivesDr. Wenbin Jiang Ph.D. (Age 60)President, CEO & Chairman of the Board Compensation: $964.21kDr. Ming Yan Ph.D. (Age 61)CTO & Director Compensation: $616.26kMs. Valerie T. Barnett J.D. (Age 48)Chief Legal Officer Compensation: $535.98kMr. William D. McCombe (Age 66)Chief Financial Officer 2 recent tradesMr. Chris Williams (Age 55)Chief Operating Officer Dr. Allen B. Poirson Ph.D. (Age 64)Senior Vice President of Business & Corporate Development Dr. Philippe Busque Ph.D.Senior Vice President of Global Sales & ServicesMr. Patrik Sebastian Jeanmonod (Age 57)Head of Corporate Development Analytics Compensation: $412.54k More Insider Trading Tools from MarketBeat Related Companies 10x Genomics Insider Trades Eyepoint Pharmaceuticals Insider Trades Transcat Insider Trades Allient Insider Trades Aehr Test Systems Insider Trades Standard BioTools Insider Trades Senseonics Insider Trades Frequency Electronics Insider Trades Quantum-Si Insider Trades 908 Devices Insider Trades Insider Tracking Tools CEO Purchases/Sales CFO Purchases/Sales Top Insider Buying Stocks Top Insider Selling Stocks Insider Trades Screener Insider Trades Newsletter Congressional Stock Trades Insider Trading By Country U.S. Insider Trading Activity Canadian Insider Trading Activity U.K. Insider Trading Activity Australia Insider Trading Activity Latest Articles Insiders Sell These High-Quality Stocks: Why Investors Shouldn’tPalantir Insider Selling: Risk Signal or Normal Activity?Loop Industries Insiders Buy Stock, Signal Confidence in OutlookDueling Insider Moves: Heavy Buying Here, Big Selling ThereCostco Faces Downgrades, Death Cross, Insider Selling This page (NASDAQ:CTKB) was last updated on 9/9/2025 by MarketBeat.com Staff From Our PartnersWhy Trump’s “Smart Dollar” could rewrite the rulesMUST SEE: Donald Trump's Radical Overhaul of the U.S. Dollar Congress just approved President Trump's lates...Stansberry Research | SponsoredBuffett, Gates and Bezos Dumping StocksThe world's wealthiest individuals are making huge moves with their money. 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