Atara Biotherapeutics (ATRA) Stock Chart & Stock Price History $9.27 -0.03 (-0.32%) Closing price 07/15/2025 04:00 PM EasternExtended Trading$9.28 +0.01 (+0.05%) As of 07/15/2025 04:09 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 ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock Atara Biotherapeutics Stock Price Performance The Atara Biotherapeutics (ATRA) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 24.45%, with a year-to-date return of -30.35%. In the past month, the stock has increased 8.04%, reflecting recent market activity. As of the latest close, Atara Biotherapeutics traded at $9.27 with a market cap of $55.26 million and volume of 82,905 shares. Five years ago, the stock traded at a split-adjusted price of $345.00, representing a 97.31% decrease over that period. At the time, it had a market cap of $791.11 million and a volume of 28,152 shares. Receive ATRA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Atara Biotherapeutics and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+0.43%1 Month Performance+8.04%3 Month Performance+58.73%Year-To-Date Performance-30.35%1 Year Performance-24.45%5 Year Performance-97.31% ATRA Stock Chart for Wednesday, July, 16, 2025 ATRA Chart by TradingView Atara Biotherapeutics 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 Capitalization07/15/2025$9.30$9.27-0.32%$9.62$8.7782,905 shs$55.26 million07/14/2025$9.23$9.30+0.76%$9.44$9.1630,021 shs$55.44 million07/11/2025$9.48$9.23-2.64%$9.60$9.1123,402 shs$55.02 million07/10/2025$9.23$9.48+2.71%$9.60$9.2535,112 shs$56.50 million07/09/2025$9.27$9.23-0.43%$9.44$9.0735,334 shs$55.01 million07/08/2025$8.58$9.27+8.04%$9.35$8.4341,364 shs$55.26 million07/07/2025$8.01$8.58+7.12%$8.68$8.2134,024 shs$51.14 million07/04/2025$8.01$8.01$8.62$8.1118,894 shs$47.74 million07/03/2025$8.25$8.01-2.91%$8.62$8.1118,894 shs$47.74 million07/02/2025$7.80$8.25+5.77%$8.35$7.8831,148 shs$49.17 million Get the Latest News and Ratings for ATRA and Related StocksEnter your email address below to receive the latest news and analysts' ratings for Atara Biotherapeutics and its competitors with MarketBeat's FREE daily newsletter. 07/01/2025$7.72$7.80+1.04%$8.02$7.5420,119 shs$46.49 million06/30/2025$7.96$7.72-3.02%$8.07$7.6018,849 shs$46.01 million06/27/2025$7.95$7.96+0.13%$8.15$7.8022,267 shs$47.44 million06/26/2025$8.02$7.95-0.87%$8.18$7.8127,698 shs$47.39 million06/25/2025$8.06$8.02-0.50%$8.25$7.7615,429 shs$47.80 million06/24/2025$7.88$8.06+2.28%$8.20$7.7329,533 shs$48.04 million06/23/2025$7.94$7.88-0.76%$8.08$7.6816,739 shs$46.97 million06/20/2025$8.02$7.94-1.00%$8.05$7.5186,856 shs$47.32 million06/19/2025$8.02$8.02$8.28$7.7971,466 shs$47.80 million06/18/2025$7.80$8.02+2.82%$8.28$7.7971,466 shs$47.80 million06/17/2025$8.58$7.80-9.09%$8.38$7.7445,473 shs$46.50 million06/16/2025$8.82$8.58-2.72%$9.00$8.3239,430 shs$51.15 million Related Companies ORIC Stock Price Chart CTMX Stock Price Chart DRUG Stock Price Chart SOPH Stock Price Chart FDMT Stock Price Chart YMAB Stock Price Chart ENGN Stock Price Chart EPRX Stock Price Chart GNFT Stock Price Chart OGI Stock Price Chart Receive ATRA Stock News and Ratings via EmailSign-up to receive the latest news and ratings for Atara Biotherapeutics and its competitors with MarketBeat's FREE daily newsletter. 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