Alnylam Pharmaceuticals (ALNY) Stock Chart & Stock Price History $302.46 -1.54 (-0.51%) Closing price 04:00 PM EasternExtended Trading$300.33 -2.13 (-0.70%) As of 04:20 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 Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Alnylam Pharmaceuticals Stock Price Performance The Alnylam Pharmaceuticals (ALNY) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 96.96%, with a year-to-date return of 28.46%. In the past month, the stock has increased 19.95%, reflecting recent market activity. As of the latest close, Alnylam Pharmaceuticals traded at $304.00 with a market cap of $39.64 billion and volume of 609,634 shares. Five years ago, the stock traded at $129.71, representing a 133.04% increase over that period. At the time, it had a market cap of $15.03 billion and a volume of 578,316 shares. 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 5 Day Performance-1.86%1 Month Performance+19.95%3 Month Performance+29.69%Year-To-Date Performance+28.46%1 Year Performance+96.96%5 Year Performance+133.04% ALNY Stock Chart for Tuesday, June, 10, 2025 ALNY Chart by TradingView Alnylam 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 Capitalization06/09/2025$300.83$304.00+1.05%$306.17$297.67609,634 shs$39.64 billion06/06/2025$308.00$300.83-2.33%$310.22$300.27954,848 shs$39.22 billion06/05/2025$305.31$308.00+0.88%$308.53$300.75761,194 shs$40.16 billion06/04/2025$303.77$305.31+0.51%$308.93$302.34563,088 shs$39.81 billion06/03/2025$306.09$303.77-0.76%$307.85$301.52965,347 shs$39.61 billion06/02/2025$304.59$306.09+0.49%$307.19$299.521.13 million shs$39.91 billion05/30/2025$292.90$304.59+3.99%$306.00$287.203.12 million shs$39.71 billion05/29/2025$285.56$292.90+2.57%$293.22$284.73965,759 shs$38.19 billion05/28/2025$290.10$285.56-1.56%$291.54$285.55905,329 shs$37.23 billion05/27/2025$289.96$290.10+0.05%$295.44$289.23737,929 shs$37.83 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. 05/26/2025$289.96$289.96$291.22$284.19757,018 shs$37.81 billion05/23/2025$289.00$289.96+0.33%$291.22$284.19757,018 shs$37.81 billion05/22/2025$292.58$289.00-1.22%$291.54$284.42614,991 shs$37.68 billion05/21/2025$291.68$292.58+0.31%$298.23$288.74930,234 shs$38.15 billion05/20/2025$291.86$291.68-0.06%$292.99$288.25627,258 shs$38.03 billion05/19/2025$285.31$291.86+2.30%$296.80$285.41929,466 shs$38.06 billion05/16/2025$283.40$285.31+0.67%$289.75$280.601.19 million shs$37.20 billion05/15/2025$267.55$283.40+5.92%$285.00$266.181.26 million shs$36.95 billion05/14/2025$266.86$267.55+0.26%$270.00$261.85700,397 shs$34.89 billion05/13/2025$270.19$266.86-1.23%$268.07$261.45723,502 shs$34.80 billion05/12/2025$252.00$270.19+7.22%$270.20$252.791.25 million shs$35.23 billion05/09/2025$258.35$252.00-2.46%$260.00$250.35656,363 shs$32.86 billion Related Companies Amgen Stock Price Chart 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 Neurocrine Biosciences Stock Price Chart Exelixis Stock Price Chart BioMarin Pharmaceutical 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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