CollPlant Biotechnologies (CLGN) Stock Chart & Stock Price History $0.42 -0.03 (-6.56%) Closing price 03:51 PM EasternExtended Trading$0.44 +0.02 (+4.88%) As of 05:20 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 Massive. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsHeadlinesOptions ChainOwnershipSEC FilingsShort InterestTrendsBuy This Stock CollPlant Biotechnologies Stock Price Performance The CollPlant Biotechnologies (CLGN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 78.76%, with a year-to-date return of -69.96%. In the past month, the stock has increased 9.51%, reflecting recent market activity. As of the latest close, CollPlant Biotechnologies traded at $0.45 with a market cap of $6.49 million and volume of 12,038 shares. Five years ago, the stock traded at $15.03, representing a 97.20% decrease over that period. At the time, it had a market cap of $85.22 million and a volume of 28,997 shares. Receive CLGN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for CollPlant Biotechnologies and its competitors with MarketBeat's FREE daily newsletter. Subscribe Now View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. 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Read our full terms of service and privacy policy. 5 Day Performance-4.39%1 Month Performance+9.51%3 Month Performance-31.71%Year-To-Date Performance-69.96%1 Year Performance-78.76%5 Year Performance-97.20% CLGN Stock Chart for Thursday, May, 21, 2026 CLGN Chart by TradingView CollPlant Biotechnologies 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 DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization05/21/2026$0.45$0.42-6.56%$0.46$0.3933,831 shs$6.06 million05/20/2026$0.42$0.45+7.17%$0.45$0.4212,038 shs$6.49 million05/19/2026$0.43$0.42-3.43%$0.43$0.419,526 shs$6.05 million05/18/2026$0.44$0.43-1.14%$0.45$0.3838,608 shs$6.27 million05/15/2026$0.42$0.44+4.79%$0.44$0.4228,606 shs$6.34 million05/14/2026$0.42$0.42+0.24%$0.43$0.3658,022 shs$6.05 million05/13/2026$0.41$0.42+3.38%$0.42$0.3896,907 shs$6.03 million05/12/2026$0.39$0.41+2.97%$0.42$0.3821,361 shs$5.84 million05/11/2026$0.40$0.39-2.21%$0.43$0.399,089 shs$5.67 million05/08/2026$0.39$0.40+2.37%$0.42$0.3920,412 shs$5.66 million Get the Latest News and Ratings for CLGN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for CollPlant Biotechnologies and its competitors with MarketBeat's FREE daily newsletter. 05/07/2026$0.41$0.39-4.87%$0.44$0.3822,297 shs$5.66 million05/06/2026$0.40$0.41+3.22%$0.43$0.3859,816 shs$5.95 million05/05/2026N/A$0.40$0.43$0.4045,851 shs$5.77 million04/30/2026$0.37$0.38+2.79%$0.44$0.3650,913 shs$5.52 million04/29/2026$0.39$0.37-4.73%$0.39$0.34466,185 shs$5.37 million04/28/2026$0.41$0.39-4.63%$0.46$0.3952,981 shs$5.63 million04/27/2026$0.42$0.41-1.44%$0.46$0.40128,483 shs$5.91 million04/24/2026$0.36$0.42+16.66%$0.42$0.3720,517 shs$6.00 million04/23/2026$0.39$0.36-9.10%$0.41$0.3517,164 shs$5.14 million04/22/2026$0.38$0.39+2.16%$0.41$0.3820,664 shs$5.65 million04/21/2026$0.37$0.38+3.53%$0.40$0.3755,166 shs$5.53 million04/20/2026$0.36$0.37+3.89%$0.42$0.34495,961 shs$5.35 million Related Companies Predictive Oncology Stock Chart Retractable Technologies Stock Chart IceCure Medical Stock Chart OSR Stock Chart SeaStar Medical Stock Chart IRIDEX Stock Chart Jin Medical International Stock Chart Modular Medical Stock Chart Inspira Technologies OXY B.H.N. Stock Chart SurgePays Stock Chart Receive CLGN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for CollPlant Biotechnologies and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:CLGN) was last updated on 5/21/2026 by MarketBeat.com Staff. From Our PartnersTicker Revealed: Pre-IPO Access to "Next Elon Musk" CompanyWe’ve found The Next Elon Musk… and what we believe to be the next Tesla. 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