Regeneron Pharmaceuticals (REGN) Stock Chart & Stock Price History $542.52 -7.48 (-1.36%) Closing price 07/18/2025 04:00 PM EasternExtended Trading$545.00 +2.49 (+0.46%) As of 07/18/2025 07:54 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 ForecastsChartCompetitorsDividendEarningsFDA EventsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Regeneron Pharmaceuticals Stock Price Performance The Regeneron Pharmaceuticals (REGN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 48.99%, with a year-to-date return of -23.84%. In the past month, the stock has increased 5.63%, reflecting recent market activity. As of the latest close, Regeneron Pharmaceuticals traded at $542.52 with a market cap of $58.57 billion and volume of 1.31 million shares. Five years ago, the stock traded at $644.06, representing a 15.77% decrease over that period. At the time, it had a market cap of $70.86 billion and a volume of 713,700 shares. Receive REGN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Regeneron Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance-4.92%1 Month Performance+5.63%3 Month Performance-3.67%Year-To-Date Performance-23.84%1 Year Performance-48.99%5 Year Performance-15.77% REGN Stock Chart for Saturday, July, 19, 2025 REGN Chart by TradingView Regeneron Pharmaceuticals 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 Capitalization07/18/2025$550.00$542.52-1.36%$550.89$541.501.31 million shs$58.57 billion07/17/2025$547.93$550.00+0.38%$554.48$542.01989,175 shs$59.38 billion07/16/2025$547.96$547.93-0.01%$558.35$546.571.09 million shs$59.15 billion07/15/2025$570.59$547.96-3.97%$574.75$546.28998,434 shs$59.16 billion07/14/2025$567.74$570.59+0.50%$575.13$562.00717,055 shs$61.60 billion07/11/2025$559.76$567.74+1.43%$568.46$551.48844,505 shs$61.30 billion07/10/2025$552.58$559.76+1.30%$566.37$550.11827,335 shs$60.43 billion07/09/2025$547.75$552.58+0.88%$558.38$545.38843,779 shs$59.66 billion07/08/2025$538.11$547.75+1.79%$559.46$537.45847,049 shs$59.14 billion07/07/2025$545.00$538.11-1.26%$547.59$532.60959,668 shs$58.09 billion Get the Latest News and Ratings for REGN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Regeneron Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 07/04/2025$545.00$545.00$555.00$546.61456,413 shs$58.84 billion07/03/2025$547.74$545.00-0.50%$555.00$546.61456,413 shs$58.84 billion07/02/2025$534.91$547.74+2.40%$551.50$529.69818,031 shs$59.13 billion07/01/2025$525.00$534.91+1.89%$548.03$521.001.20 million shs$57.75 billion06/30/2025$521.00$525.00+0.77%$526.08$518.901.01 million shs$56.68 billion06/27/2025$521.00$521.00$531.21$517.391.61 million shs$56.25 billion06/26/2025$520.29$521.00+0.14%$524.52$514.79965,467 shs$56.25 billion06/25/2025$522.27$520.29-0.38%$525.63$516.99639,462 shs$56.17 billion06/24/2025$511.92$522.27+2.02%$527.45$515.79970,549 shs$56.38 billion06/23/2025$509.72$511.92+0.43%$516.18$507.611.08 million shs$55.27 billion06/20/2025$513.58$509.72-0.75%$521.31$506.382.26 million shs$55.03 billion06/19/2025$513.58$513.58$519.17$503.25841,026 shs$55.45 billion06/18/2025$508.86$513.58+0.93%$519.17$503.25841,026 shs$55.45 billion Related Companies Amgen Stock Price Chart Gilead Sciences Stock Price Chart Moderna Stock Price Chart Intellia Therapeutics Stock Price Chart Vir Biotechnology Stock Price Chart Vertex Pharmaceuticals Stock Price Chart AbbVie Stock Price Chart Eli Lilly and Company Stock Price Chart Merck & Co., Inc. Stock Price Chart Pfizer Stock Price Chart Receive REGN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Regeneron Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. This page (NASDAQ:REGN) was last updated on 7/19/2025 by MarketBeat.com Staff From Our PartnersINVESTOR ALERT: Tiny “$3 AI Wonder Stock” on the Verge of Blasting OffRight now, we’re witnessing a monumental shift in the world.Traders Agency | 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 | SponsoredGoogle did what!?!?A new technology has sparked a modern-day gold rush in Silicon Valley. OpenAI’s Sam Altman invested $375M. Bil...Stansberry Research | SponsoredWhite House to reset Social Security?Elon Musk's parting DOGE gift looks set to shock America... 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