Zenas BioPharma (ZBIO) Stock Chart & Stock Price History $18.94 -0.52 (-2.67%) As of 09/19/2025 04:00 PM Eastern Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesOwnershipSEC FilingsShort InterestTrendsBuy This Stock Zenas BioPharma Stock Price Performance The Zenas BioPharma (ZBIO) stock chart highlights key performance trends across multiple timeframes. In the past month, the stock has increased 16.05%, reflecting recent market activity. As of the latest close, Zenas BioPharma traded at $18.94 with a market cap of $797.56 million and volume of 853,297 shares. Receive ZBIO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Zenas BioPharma and its competitors with MarketBeat's FREE daily newsletter. 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Read our full terms of service and privacy policy. 5 Day Performance-13.71%1 Month Performance+16.05%3 Month Performance+106.09% ZBIO Stock Chart for Saturday, September, 20, 2025 ZBIO Chart by TradingView Zenas BioPharma 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 Capitalization09/19/2025$19.46$18.94-2.67%$19.88$18.65853,297 shs$797.56 million09/18/2025$19.07$19.46+2.05%$20.38$19.14142,621 shs$819.46 million09/17/2025$18.24$19.07+4.55%$20.14$18.24241,786 shs$803.04 million09/16/2025$21.95$18.24-16.90%$22.21$18.24192,255 shs$768.09 million09/15/2025$20.23$21.95+8.50%$22.18$20.31339,620 shs$924.31 million09/12/2025$20.17$20.23+0.30%$21.72$19.80556,172 shs$851.89 million09/11/2025$19.79$20.17+1.92%$20.92$19.68118,479 shs$849.36 million09/10/2025$21.84$19.79-9.39%$22.33$19.76199,303 shs$833.36 million09/09/2025$21.51$21.84+1.53%$22.21$21.34203,674 shs$919.68 million09/08/2025$20.51$21.51+4.88%$22.18$20.45410,238 shs$905.79 million Get the Latest News and Ratings for ZBIO and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Zenas BioPharma and its competitors with MarketBeat's FREE daily newsletter. 09/05/2025$16.98$20.51+20.79%$20.51$17.03571,756 shs$863.68 million09/04/2025$17.14$16.98-0.93%$17.33$16.36161,573 shs$715.03 million09/03/2025$17.52$17.14-2.17%$18.29$16.92261,572 shs$721.77 million09/02/2025$16.00$17.52+9.50%$17.79$16.11337,806 shs$737.77 million09/01/2025$16.00$16.00$16.32$15.82143,136 shs$673.76 million08/29/2025$16.26$16.00-1.60%$16.32$15.82143,136 shs$673.76 million08/28/2025$16.71$16.26-2.69%$16.91$16.1799,604 shs$684.71 million08/27/2025$17.00$16.71-1.71%$17.08$16.16130,598 shs$703.66 million08/26/2025$16.56$17.00+2.66%$17.15$16.5095,698 shs$715.87 million08/25/2025$17.10$16.56-3.16%$17.25$16.56155,034 shs$697.34 million08/22/2025$16.93$17.10+1.00%$17.70$16.20231,632 shs$720.08 million08/21/2025$16.32$16.93+3.74%$17.59$15.70190,258 shs$712.92 million08/20/2025$15.85$16.32+2.97%$16.80$15.07481,131 shs$687.24 million08/19/2025$17.28$15.85-8.28%$17.19$15.59252,175 shs$667.44 million Related Companies LGND Stock Price Chart FOLD Stock Price Chart BCRX Stock Price Chart MNKD Stock Price Chart CLDX Stock Price Chart INVA Stock Price Chart NVAX Stock Price Chart DVAX Stock Price Chart OPK Stock Price Chart GERN Stock Price Chart Receive ZBIO Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Zenas BioPharma and its competitors with MarketBeat's FREE daily newsletter. 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