Repligen (RGEN) Stock Chart & Stock Price History $124.04 +4.29 (+3.58%) Closing price 04:00 PM EasternExtended Trading$124.08 +0.04 (+0.03%) 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 Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Repligen Stock Price Performance The Repligen (RGEN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 6.25%, with a year-to-date return of -13.83%. In the past month, the stock has increased 2.50%, reflecting recent market activity. As of the latest close, Repligen traded at $119.75 with a market cap of $6.73 billion and volume of 690,114 shares. Five years ago, the stock traded at $134.31, representing a 7.65% decrease over that period. At the time, it had a market cap of $7.04 billion and a volume of 271,500 shares. Receive RGEN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Repligen and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-4.72%1 Month Performance+2.50%3 Month Performance-4.58%Year-To-Date Performance-13.83%1 Year Performance-6.25%5 Year Performance-7.65% RGEN Stock Chart for Thursday, July, 17, 2025 RGEN Chart by TradingView Repligen 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 Capitalization07/16/2025$118.10$119.75+1.40%$120.51$117.39690,114 shs$6.73 billion07/15/2025$121.33$118.10-2.66%$122.32$117.98611,917 shs$6.64 billion07/14/2025$130.19$121.33-6.81%$128.25$120.891.06 million shs$6.82 billion07/11/2025$134.00$130.19-2.84%$135.57$129.63757,950 shs$7.31 billion07/10/2025$129.82$134.00+3.22%$135.02$129.15545,221 shs$7.53 billion07/09/2025$128.56$129.82+0.98%$130.82$127.84576,961 shs$7.29 billion07/08/2025$124.43$128.56+3.32%$129.38$124.38586,863 shs$7.22 billion07/07/2025$127.36$124.43-2.30%$127.45$123.34424,625 shs$6.99 billion07/04/2025$127.36$127.36$129.11$126.49208,766 shs$7.16 billion07/03/2025$126.96$127.36+0.32%$129.11$126.49208,766 shs$7.16 billion Get the Latest News and Ratings for RGEN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Repligen and its competitors with MarketBeat's FREE daily newsletter. 07/02/2025$126.44$126.96+0.41%$128.19$125.63523,165 shs$7.13 billion07/01/2025$124.38$126.44+1.66%$131.43$123.10633,560 shs$7.10 billion06/30/2025$123.56$124.38+0.66%$126.04$122.62654,389 shs$6.99 billion06/27/2025$124.21$123.56-0.52%$125.05$121.44851,478 shs$6.94 billion06/26/2025$124.02$124.21+0.15%$125.54$121.99731,430 shs$6.98 billion06/25/2025$123.35$124.02+0.54%$126.61$121.62662,803 shs$6.97 billion06/24/2025$120.11$123.35+2.70%$125.03$121.22941,526 shs$6.93 billion06/23/2025$118.85$120.11+1.06%$120.28$115.86854,503 shs$6.75 billion06/20/2025$117.54$118.85+1.11%$120.77$116.50770,906 shs$6.68 billion06/19/2025$117.54$117.54$122.67$117.421.45 million shs$6.60 billion06/18/2025$121.01$117.54-2.87%$122.67$117.421.45 million shs$6.60 billion06/17/2025$126.09$121.01-4.03%$125.68$120.85621,576 shs$6.80 billion06/16/2025$127.52$126.09-1.12%$127.72$120.681.09 million shs$7.08 billion Related Companies Bio-Techne Stock Price Chart Agilent Technologies Stock Price Chart Danaher Stock Price Chart Thermo Fisher Scientific Stock Price Chart Biogen Stock Price Chart United Therapeutics Stock Price Chart Incyte Stock Price Chart Neurocrine Biosciences Stock Price Chart Exelixis Stock Price Chart BioMarin Pharmaceutical Stock Price Chart Receive RGEN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Repligen and its competitors with MarketBeat's FREE daily newsletter. 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