Bayer Aktiengesellschaft (BAYN) Stock Chart & Stock Price History €28.42 -0.18 (-0.61%) As of 08/27/2025 Add Compare Share Share Chart Stock AnalysisChartHeadlinesBuy This Stock Bayer Aktiengesellschaft Stock Price Performance The Bayer Aktiengesellschaft (BAYN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has increased 3.18%, with a year-to-date return of 47.12%. In the past month, the stock has decreased 2.72%, reflecting recent market activity. As of the latest close, Bayer Aktiengesellschaft traded at €28.59 with a market cap of €28.86 billion and volume of 2.83 million shares. Five years ago, the stock traded at €56.54, representing a 49.74% decrease over that period. At the time, it had a market cap of €55.55 billion and a volume of 2.45 million shares. 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Read our full terms of service and privacy policy. 5 Day Performance+1.01%1 Month Performance-2.72%3 Month Performance+13.98%Year-To-Date Performance+47.12%1 Year Performance+3.18%5 Year Performance-49.74% BAYN Stock Chart for Thursday, August, 28, 2025 BAYN Chart by TradingView Bayer Aktiengesellschaft 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 Capitalization08/28/2025€28.59€28.42-0.61%€28.99€28.391.50 million shs$28.69 billion08/27/2025€28.11€28.59+1.73%€28.79€28.042.83 million shs$28.86 billion08/26/2025€28.56€28.11-1.58%€28.55€27.871.72 million shs$28.37 billion08/25/2025€28.56€28.56€28.81€28.042.00 million shs$28.83 billion08/22/2025€27.96€28.13+0.63%€28.13€27.691.70 million shs$28.40 billion08/21/2025€28.09€27.96-0.48%€28.22€27.771.78 million shs$28.22 billion08/20/2025€27.67€28.09+1.52%€28.13€27.592.12 million shs$28.36 billion08/19/2025€27.05€27.67+2.31%€28.23€27.023.54 million shs$27.94 billion08/18/2025€27.05€27.05€27.13€26.822.04 million shs$27.30 billion08/15/2025€26.80€26.63-0.63%€26.90€26.531.94 million shs$26.89 billion Get the Latest News and Ratings for BAYN and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Bayer Aktiengesellschaft and its competitors with MarketBeat's FREE daily newsletter. 08/14/2025€25.96€26.80+3.24%€26.94€25.993.56 million shs$27.06 billion08/13/2025€25.71€25.96+0.97%€26.01€25.492.35 million shs$26.21 billion08/12/2025€25.72€25.71-0.02%€26.20€25.591.85 million shs$25.96 billion08/11/2025€25.72€25.72€25.88€25.312.30 million shs$25.96 billion08/08/2025€24.98€25.37+1.58%€25.89€24.924.35 million shs$25.61 billion08/07/2025€27.73€24.98-9.92%€27.41€24.818.87 million shs$25.21 billion08/06/2025€27.50€27.73+0.84%€27.83€27.562.49 million shs$27.99 billion08/05/2025€28.12€27.50-2.22%€28.14€27.293.01 million shs$27.76 billion08/04/2025€28.12€28.12€28.93€27.176.35 million shs$28.39 billion08/01/2025€28.21€27.35-3.03%€28.25€27.273.86 million shs$27.61 billion07/31/2025€28.58€28.21-1.29%€28.56€28.212.30 million shs$28.48 billion07/30/2025€28.96€28.58-1.31%€29.10€28.502.54 million shs$28.85 billion07/29/2025€29.21€28.96-0.87%€29.78€28.792.14 million shs$29.23 billion07/28/2025€29.21€29.21€29.43€28.842.13 million shs$29.49 billion Related Companies Sanofi Stock Price Chart Siemens Healthineers Stock Price Chart Merck KGaA Stock Price Chart Fresenius Medical Care Stock Price Chart Sartorius Aktiengesellschaft Stock Price Chart Carl Zeiss Meditec Stock Price Chart Gerresheimer Stock Price Chart Drägerwerk AG & Co. KGaA Stock Price Chart CompuGroup Medical SE & Co. KGaA Stock Price Chart Evotec Stock Price Chart Receive BAYN Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Bayer Aktiengesellschaft and its competitors with MarketBeat's FREE daily newsletter. This page (ETR:BAYN) was last updated on 8/28/2025 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 | SponsoredEveryone’s watching Nvidia right now. Here’s why I’m excited.So, unless you’ve been living under a rock, you probably saw the news… Nvidia just signed a $7 BILLION deal...Timothy Sykes | SponsoredAmazon’s big Bitcoin embarrassmentBitcoin just passed Amazon in total market cap — but most investors are missing the bigger opportunity. 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