Cytek Biosciences (CTKB) Insider Trading & Ownership $3.48 +0.08 (+2.35%) Closing price 04:00 PM EasternExtended Trading$3.48 +0.00 (+0.14%) As of 04:04 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? Sign up for InsiderTrades.com's daily newsletter to get the latest insider transactions delivered to your inbox daily. Email Address 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 ($1,137,700.00), Patrik Jeanmonod ($105,570.00), and Wenbin Jiang ($680,400.00). How much insider selling is happening at Cytek Biosciences? Insiders have sold a total of 276,900 Cytek Biosciences shares in the last 24 months for a total of $1,923,670.00 sold. More Insider Trading Tools from MarketBeat Related Companies 10x Genomics Insider Trades Transcat Insider Trades Eyepoint Pharmaceuticals Insider Trades Allient Insider Trades Standard BioTools Insider Trades Senseonics Insider Trades Aehr Test Systems Insider Trades Quantum-Si Insider Trades 908 Devices Insider Trades Quanterix 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 The Top Insider Sells From Q2: Buy, Sell, or Hold?3 Hot Trades for Insiders, But Are They Good Buys for Investors?Insiders Chase Income and Stability in American Tower—Here’s Why3 Tech Stocks With High and Rising Institutional Interest3 Summer Stocks With Insider Buying and Analyst Support This page (NASDAQ:CTKB) was last updated on 7/1/2025 by MarketBeat.com Staff From Our PartnersHere's the last trade you should make before heading out for the weekend tomorrow.Make this one trade at 2:59 PM on Friday afternoon, and you'll thank me on Monday morning.Timothy Sykes | SponsoredThis Signal Only Flashes Once Every 4 Years – And It Just TriggeredThis same signal has appeared twice before in the past 8 years — both times, it kicked off major moves in cryp...Crypto Swap Profits | SponsoredThis Crypto Is Set to Explode in JanuaryFree summit: How to profit from the Coinbase-Deribit deal Our hedge fund experts know exactly what this mea...Crypto 101 Media | SponsoredTrump set to Boost Social Security Checks by 400%?If you collect—or plan to collect—Social Security, you need to see this. 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