Biogen (BIIB) Stock Chart & Stock Price History $132.62 -0.57 (-0.42%) Closing price 07/3/2025 03:57 PM EasternExtended Trading$132.87 +0.25 (+0.18%) As of 07/3/2025 04:57 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 Biogen Stock Price Performance The Biogen (BIIB) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 41.23%, with a year-to-date return of -13.27%. In the past month, the stock has increased 1.74%, reflecting recent market activity. As of the latest close, Biogen traded at $132.63 with a market cap of $19.43 billion and volume of 633,328 shares. Five years ago, the stock traded at $265.12, representing a 49.98% decrease over that period. At the time, it had a market cap of $43.66 billion and a volume of 940,515 shares. Receive BIIB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Biogen and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+5.60%1 Month Performance+1.74%3 Month Performance+7.84%Year-To-Date Performance-13.27%1 Year Performance-41.23%5 Year Performance-49.98% BIIB Stock Chart for Saturday, July, 5, 2025 BIIB Chart by TradingView Biogen 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 Capitalization07/04/2025$132.63$132.63$134.42$132.21633,328 shs$19.43 billion07/03/2025$133.19$132.63-0.42%$134.42$132.21633,328 shs$19.43 billion07/02/2025$130.07$133.19+2.40%$134.63$129.851.47 million shs$19.52 billion07/01/2025$125.59$130.07+3.57%$134.75$124.941.92 million shs$19.06 billion06/30/2025$126.08$125.59-0.39%$126.53$123.901.18 million shs$18.40 billion06/27/2025$126.92$126.08-0.66%$128.25$125.601.10 million shs$18.47 billion06/26/2025$127.31$126.92-0.31%$129.27$126.46864,859 shs$18.60 billion06/25/2025$126.31$127.31+0.79%$127.98$125.131.10 million shs$18.65 billion06/24/2025$124.76$126.31+1.24%$127.36$125.02938,157 shs$18.51 billion06/23/2025$127.04$124.76-1.79%$127.68$123.211.19 million shs$18.28 billion Get the Latest News and Ratings for BIIB and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Biogen and its competitors with MarketBeat's FREE daily newsletter. 06/20/2025$126.54$127.04+0.40%$128.64$126.122.17 million shs$18.62 billion06/19/2025$126.54$126.54$127.88$125.242.33 million shs$18.54 billion06/18/2025$126.56$126.54-0.02%$127.88$125.242.33 million shs$18.54 billion06/17/2025$131.04$126.56-3.42%$130.70$126.491.15 million shs$18.54 billion06/16/2025$130.65$131.04+0.30%$131.58$128.831.11 million shs$19.20 billion06/13/2025$132.31$130.65-1.25%$132.49$130.111.21 million shs$19.14 billion06/12/2025$133.06$132.31-0.56%$134.12$131.471.15 million shs$19.39 billion06/11/2025$135.49$133.06-1.79%$136.41$132.901.33 million shs$19.50 billion06/10/2025$134.15$135.49+1.00%$136.84$133.42991,016 shs$19.85 billion06/09/2025$133.13$134.15+0.77%$135.69$132.931.08 million shs$19.66 billion06/06/2025$130.36$133.13+2.12%$133.72$131.451.17 million shs$19.51 billion06/05/2025$131.86$130.36-1.14%$132.12$129.611.24 million shs$19.10 billion06/04/2025$131.84$131.86+0.02%$133.66$131.671.47 million shs$19.32 billion Related Companies Regeneron Pharmaceuticals Stock Chart Alnylam Pharmaceuticals Stock Chart Incyte Stock Chart United Therapeutics Stock Chart Neurocrine Biosciences Stock Chart Exelixis Stock Chart BioMarin Pharmaceutical Stock Chart Exact Sciences Stock Chart Repligen Stock Chart Halozyme Therapeutics Stock Chart Receive BIIB Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Biogen and its competitors with MarketBeat's FREE daily newsletter. 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