Cyclerion Therapeutics (CYCN) Stock Chart & Stock Price History $2.79 +0.00 (+0.04%) Closing price 03:58 PM EasternExtended Trading$2.64 -0.15 (-5.23%) As of 06:08 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 Chart Stock AnalysisChartCompetitorsEarningsInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Cyclerion Therapeutics Stock Price Performance The Cyclerion Therapeutics (CYCN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 16.93%, with a year-to-date return of -13.32%. In the past month, the stock has decreased 15.55%, reflecting recent market activity. As of the latest close, Cyclerion Therapeutics traded at $2.79 with a market cap of $8.94 million and volume of 36,218 shares. Five years ago, the stock traded at a split-adjusted price of $88.80, representing a 96.86% decrease over that period. At the time, it had a market cap of $113.66 million and a volume of 8,635 shares. Receive CYCN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Cyclerion Therapeutics and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+5.32%1 Month Performance-15.55%3 Month Performance-6.03%Year-To-Date Performance-13.32%1 Year Performance-16.93%5 Year Performance-96.86% CYCN Stock Chart for Tuesday, August, 5, 2025 CYCN Chart by TradingView Cyclerion Therapeutics Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization08/05/2025$2.79$2.79+0.22%$2.89$2.5170,795 shs$8.96 million08/04/2025$2.57$2.79+8.58%$2.89$2.5536,218 shs$8.94 million08/01/2025$2.65$2.57-3.21%$2.75$2.5521,239 shs$8.23 million07/31/2025$2.64$2.65+0.38%$2.75$2.5180,003 shs$8.51 million07/30/2025$2.73$2.64-3.30%$2.78$2.5739,863 shs$8.47 million07/29/2025$2.78$2.73-1.80%$2.95$2.6043,943 shs$8.76 million07/28/2025$2.86$2.78-2.80%$2.93$2.7540,979 shs$8.92 million07/25/2025$3.02$2.86-5.30%$3.08$2.8062,630 shs$9.18 million07/24/2025$3.00$3.02+0.67%$3.14$2.9079,481 shs$9.69 million07/23/2025$3.19$3.00-5.96%$3.25$2.9589,312 shs$9.63 million Get the Latest News and Ratings for CYCN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Cyclerion Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 07/22/2025$3.37$3.19-5.34%$3.60$3.1174,307 shs$10.24 million07/21/2025$3.54$3.37-4.80%$3.66$3.16150,932 shs$10.82 million07/18/2025$3.02$3.54+17.22%$3.70$3.16145,766 shs$11.36 million07/17/2025$3.05$3.02-0.98%$3.15$2.9718,272 shs$9.69 million07/16/2025$3.18$3.05-4.09%$3.37$2.7961,564 shs$9.79 million07/15/2025$3.30$3.18-3.64%$3.46$3.1811,656 shs$10.21 million07/14/2025$3.64$3.30-9.34%$3.63$3.2344,885 shs$10.59 million07/11/2025$3.55$3.64+2.54%$3.74$3.5554,178 shs$11.68 million07/10/2025$3.47$3.55+2.31%$3.73$3.2346,599 shs$11.40 million07/09/2025$3.14$3.47+10.51%$3.59$3.1438,701 shs$11.14 million07/08/2025$3.09$3.14+1.62%$3.15$2.9518,297 shs$10.08 million07/07/2025$3.31$3.09-6.51%$3.40$3.0529,102 shs$9.92 million07/04/2025$3.31$3.31$3.43$3.0619,378 shs$10.61 million Related Companies XLO Stock Chart AKTX Stock Chart MAAQ Stock Chart SNYR Stock Chart RANI Stock Chart DYAI Stock Chart ESLA Stock Chart RNTX Stock Chart PMN Stock Chart BDRX Stock Chart Receive CYCN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Cyclerion Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 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