Alnylam Pharmaceuticals (ALNY) Stock Chart & Stock Price History $251.08 +0.08 (+0.03%) As of 11:17 AM Eastern This is a fair market value price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrends Alnylam Pharmaceuticals Stock Price Performance 5 Day Performance-1.54%1 Month Performance-4.72%3 Month Performance+2.20%6 Month Performance-9.56%Year-To-Date Performance+7.30%1 Year Performance+63.17% Receive ALNY Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Alnylam Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. Email Address ALNY Stock Chart for Friday, February, 21, 2025 ALNY Chart by TradingView Alnylam Pharmaceuticals Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization02/20/2025$250.51$252.49+0.79%$252.99$247.00727,787 shs$32.69 billion02/19/2025$250.00$250.51+0.20%$254.01$246.61766,476 shs$32.43 billion02/18/2025$256.45$250.00-2.52%$260.00$249.16910,256 shs$32.25 billion02/17/2025$256.45$256.45$264.87$251.87805,993 shs$33.08 billion02/14/2025$264.89$256.45-3.19%$264.87$251.87805,993 shs$33.08 billion02/13/2025$265.96$264.89-0.40%$268.52$256.65769,150 shs$34.17 billion02/12/2025$268.99$265.96-1.13%$268.20$261.69820,712 shs$34.30 billion02/11/2025$274.06$268.99-1.85%$273.23$266.98283,048 shs$34.69 billion02/10/2025$276.19$274.06-0.77%$276.23$267.92823,841 shs$35.35 billion02/07/2025$278.25$276.19-0.74%$278.03$272.35469,011 shs$35.62 billion Get the Latest News and Ratings for ALNY and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Alnylam Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 02/06/2025$276.31$278.25+0.70%$279.24$274.05528,542 shs$35.89 billion02/05/2025$271.00$276.31+1.96%$278.44$272.15749,967 shs$35.64 billion02/04/2025$274.55$271.00-1.29%$277.98$269.05742,952 shs$34.95 billion02/03/2025$271.31$274.55+1.19%$278.51$266.21779,360 shs$35.41 billion01/31/2025$277.16$271.31-2.11%$279.34$270.26648,090 shs$34.99 billion01/30/2025$273.99$277.16+1.16%$279.36$269.00561,204 shs$35.75 billion01/29/2025$278.99$273.99-1.79%$279.70$273.45381,753 shs$35.34 billion01/28/2025$276.73$278.99+0.82%$283.56$273.33611,314 shs$35.98 billion01/27/2025$278.76$276.73-0.73%$287.22$274.24785,896 shs$35.69 billion01/24/2025$275.54$278.76+1.17%$279.67$271.52924,153 shs$35.95 billion01/23/2025$266.54$275.54+3.38%$277.22$263.01686,451 shs$35.54 billion01/22/2025$264.99$266.54+0.58%$269.14$262.17746,367 shs$34.38 billion01/21/2025$246.27$264.99+7.60%$265.02$251.23938,827 shs$34.18 billion01/20/2025$246.27$246.27$253.50$245.69556,461 shs$31.76 billion Related Companies Gilead Sciences Stock Price Chart Vertex Pharmaceuticals Stock Price Chart Regeneron Pharmaceuticals Stock Price Chart Biogen Stock Price Chart United Therapeutics Stock Price Chart Incyte Stock Price Chart BioMarin Pharmaceutical Stock Price Chart Neurocrine Biosciences Stock Price Chart Exelixis Stock Price Chart Exact Sciences Stock Price Chart Receive ALNY Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Alnylam Pharmaceuticals and its competitors with MarketBeat's FREE daily newsletter. 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