Celldex Therapeutics (CLDX) Stock Chart & Stock Price History $21.44 -0.69 (-3.12%) Closing price 08/6/2025 04:00 PM EasternExtended Trading$21.62 +0.18 (+0.84%) As of 04:04 AM 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 AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock Celldex Therapeutics Stock Price Performance The Celldex Therapeutics (CLDX) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 33.13%, with a year-to-date return of -15.16%. In the past month, the stock has increased 2.19%, reflecting recent market activity. As of the latest close, Celldex Therapeutics traded at $21.44 with a market cap of $1.42 billion and volume of 991,062 shares. Five years ago, the stock traded at $11.14, representing a 92.46% increase over that period. At the time, it had a market cap of $261.70 million and a volume of 516,257 shares. Receive CLDX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Celldex Therapeutics and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-3.38%1 Month Performance+2.19%3 Month Performance+13.38%Year-To-Date Performance-15.16%1 Year Performance-33.13%5 Year Performance+92.46% CLDX Stock Chart for Thursday, August, 7, 2025 CLDX Chart by TradingView Celldex 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 Capitalization08/06/2025$22.13$21.44-3.12%$21.92$20.65991,062 shs$1.42 billion08/05/2025$21.80$22.13+1.51%$22.60$21.46898,864 shs$1.47 billion08/04/2025$22.19$21.80-1.76%$22.28$21.55827,216 shs$1.45 billion08/01/2025$21.98$22.19+0.96%$22.39$21.69768,053 shs$1.47 billion07/31/2025$22.81$21.98-3.64%$23.02$21.73783,425 shs$1.46 billion07/30/2025$21.95$22.81+3.92%$23.41$22.14992,371 shs$1.51 billion07/29/2025$22.01$21.95-0.27%$22.24$21.57693,057 shs$1.46 billion07/28/2025$23.35$22.01-5.74%$23.47$21.991.14 million shs$1.46 billion07/25/2025$23.22$23.35+0.56%$23.50$22.52969,956 shs$1.55 billion07/24/2025$23.87$23.22-2.72%$24.06$22.90849,824 shs$1.54 billion Get the Latest News and Ratings for CLDX and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Celldex Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 07/23/2025$22.36$23.87+6.75%$23.92$22.361.24 million shs$1.58 billion07/22/2025$22.06$22.36+1.36%$22.67$21.71717,510 shs$1.48 billion07/21/2025$22.41$22.06-1.56%$22.80$21.90745,827 shs$1.46 billion07/18/2025$22.97$22.41-2.44%$23.33$22.21880,629 shs$1.49 billion07/17/2025$22.98$22.97-0.04%$23.39$22.521.02 million shs$1.52 billion07/16/2025$22.85$22.98+0.57%$23.40$22.31676,377 shs$1.53 billion07/15/2025$23.36$22.85-2.18%$23.85$22.30964,101 shs$1.52 billion07/14/2025$22.91$23.36+1.96%$23.50$22.64499,744 shs$1.55 billion07/11/2025$22.68$22.91+1.01%$23.55$22.50808,270 shs$1.52 billion07/10/2025$22.46$22.68+0.98%$22.82$21.70642,092 shs$1.51 billion07/09/2025$21.33$22.46+5.30%$22.69$21.501.12 million shs$1.49 billion07/08/2025$20.98$21.33+1.67%$21.69$20.76701,228 shs$1.42 billion07/07/2025$21.98$20.98-4.53%$21.92$20.78765,677 shs$1.39 billion Related Companies Alkermes Stock Price Chart Ligand Pharmaceuticals Stock Price Chart Amicus Therapeutics Stock Price Chart BioCryst Pharmaceuticals Stock Price Chart Dynavax Technologies Stock Price Chart Innoviva Stock Price Chart MannKind Stock Price Chart Novavax Stock Price Chart OPKO Health Stock Price Chart Geron Stock Price Chart Receive CLDX Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Celldex Therapeutics and its competitors with MarketBeat's FREE daily newsletter. 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