NASDAQ:ATRA Atara Biotherapeutics (ATRA) Stock Price, News & Analysis $8.09 -0.42 (-4.94%) As of 08/14/2026 04:00 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsFinancialsHeadlinesInsider TradesOwnershipSEC FilingsTrendsBuy This Stock About Atara Biotherapeutics Stock (NASDAQ:ATRA) View Price History Chart DataSkip Price History Chart 1 Day 5 Days 30 Days 90 Days 1 Year Advanced 1 Day 1 Day 5 Days 30 Days 90 Days 1 Year Advanced Show volume Show extended hours Get Atara Biotherapeutics alerts:Sign Up Key Stats Today's Range$7.99▼$8.5150-Day Range$7.71▼$11.6552-Week Range$3.92▼$19.15Volume66,247 shsAverage Volume56,168 shsMarket Capitalization$72.89 millionP/E RatioN/ADividend YieldN/APrice Target$9.50Consensus RatingHold Company Overview Atara Biotherapeutics, Inc. is a biotechnology company focused on the discovery, development and commercialization of novel T-cell immunotherapies to transform the treatment of cancer and autoimmune disease. Headquartered in South San Francisco, California, Atara leverages its proprietary off-the-shelf allogeneic Epstein-Barr virus (EBV)-directed T-cell platform to generate engineered cell therapies designed to target EBV-driven malignancies and immune-mediated disorders. The company’s lead product candidate, tabelecleucel, is an off-the-shelf, EBV-specific T-cell therapy in clinical development for the treatment of EBV-positive post-transplant lymphoproliferative disease (PTLD) and other EBV-associated cancers. In addition, Atara is advancing multiple earlier-stage programs, including ATA188 for progressive multiple sclerosis and ATA227 for autoimmune indications, each harnessing the company’s expertise in antigen-specific T-cell biology. Atara’s pipeline is supported by manufacturing and process development capabilities aimed at delivering scalable, cryopreserved cell therapies for global distribution. Founded in 2012, Atara Biotherapeutics has built a diversified clinical portfolio and established collaborations to advance its therapies across North America, Europe and Asia. The company’s leadership team combines expertise in cell therapy development, regulatory affairs and commercial strategy, guided by President and Chief Executive Officer Pascal Touchon. Through ongoing clinical studies and strategic partnerships, Atara aims to address unmet medical needs in oncology and autoimmune disease with its off-the-shelf T-cell products.AI Generated. May Contain Errors. Read More Atara Biotherapeutics Stock Analysis - MarketRank™See Top-Rated MarketRank™ Stocks39th Percentile Overall ScoreATRA MarketRank™: Atara Biotherapeutics scored higher than 39% of companies evaluated by MarketBeat, and ranked 694th out of 912 stocks in the healthcare sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion2.8 / 5Analyst RatingHold Consensus RatingAtara Biotherapeutics has received a consensus rating of Hold. The company's average rating score is 2.00, and is based on no strong buy ratings, 1 buy rating, 1 hold rating, and 1 sell rating.Upside PotentialAtara Biotherapeutics has a consensus price target of $9.50, representing about 17.4% upside from its current price of $8.09.Amount of Analyst CoverageAtara Biotherapeutics has only been the subject of 2 research reports in the past 90 days.Read more about Atara Biotherapeutics' stock forecast and price target. Earnings and Valuation0.6 / 5Proj. Earnings GrowthGrowing Earnings GrowthEarnings for Atara Biotherapeutics are expected to grow in the coming year, from ($0.16) to $1.40 per share.Price to Earnings Ratio vs. the MarketThe P/E ratio of Atara Biotherapeutics is -6.86, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Price to Earnings Ratio vs. SectorThe P/E ratio of Atara Biotherapeutics is -6.86, which means that its earnings are negative and its P/E ratio cannot be compared to companies with positive earnings.Read more about Atara Biotherapeutics' valuation and earnings. Short Interest3.0 / 5Short Interest LevelHealthy Percentage of Shares Shorted10.13% of the float of Atara Biotherapeutics has been sold short.Short Interest Ratio / Days to CoverAtara Biotherapeutics has a short interest ratio ("days to cover") of 9.39.Change versus previous monthShort interest in Atara Biotherapeutics has recently decreased by 7.05%, indicating that investor sentiment is improving significantly. Dividend0.0 / 5Dividend StrengthN/A Dividend YieldAtara Biotherapeutics does not currently pay a dividend.Dividend GrowthAtara Biotherapeutics does not have a long track record of dividend growth. News and Social Media1.0 / 5News Sentiment-0.33 News SentimentAtara Biotherapeutics has a news sentiment score of -0.33. This score is calculated as an average of sentiment of articles about the company over the last seven days and ranges from 2 (good news) to -2 (bad news). This is a lower news sentiment than the 0.65 average news sentiment score of Healthcare companies.News Coverage This WeekMarketBeat has tracked 5 news articles for Atara Biotherapeutics this week, compared to 6 articles on an average week. Company Ownership2.1 / 5Insider TradingSelling Shares Insider Buying vs. Insider SellingIn the past three months, Atara Biotherapeutics insiders have sold more of their company's stock than they have bought. Specifically, they have bought $0.00 in company stock and sold $69,890.00 in company stock.Percentage Held by Insiders41.20% of the stock of Atara Biotherapeutics is held by insiders. A high percentage of insider ownership can be a sign of company health.Percentage Held by Institutions70.90% of the stock of Atara Biotherapeutics is held by institutions. High institutional ownership can be a signal of strong market trust in this company.Read more about Atara Biotherapeutics' insider trading history. 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Unsubscribe at any time by replying "STOP" to any text message that you receive from MarketBeat or by visiting our mailing preferences page. Read our full terms of service and privacy policy. ATRA Stock News HeadlinesAtara Biotherapeutics Announces Second Quarter 2026 Financial Results and Operational ProgressAugust 12 at 6:30 PM | finance.yahoo.comAtara Biotherapeutics (ATRA) Expected to Release Earnings on MondayAugust 9, 2026 | americanbankingnews.comTicker Revealed: Pre-IPO Access to "Next Elon Musk" CompanyWe’ve found The Next Elon Musk… and what we believe to be the next Tesla. It’s already racked up $26 billion in government contracts. Peter Thiel just bet $1 Billion on it.August 15 at 1:00 AM | Banyan Hill Publishing (Ad)Atara Biotherapeutics (NASDAQ:ATRA) Cut to Sell at Wall Street ZenAugust 8, 2026 | americanbankingnews.comAtara Biotherapeutics Announces $15 Million Registered Direct OfferingJuly 7, 2026 | businesswire.comQuetzal Therapeutics Announces First Patient Dosed in Phase 3 QUATRO-APL Trial of QTX-2101 for Frontline Acute Promyelocytic LeukemiaJune 11, 2026 | globenewswire.comAtara Biotherapeutics Inc (ATRA)May 31, 2026 | investing.comThe Gross Law Firm Reminds Shareholders of a Lead Plaintiff Deadline of May 22, 2026 in Atara Biotherapeutics, Inc. Lawsuit - ATRAMay 26, 2026 | prnewswire.comSee More Headlines ATRA Stock Analysis - Frequently Asked Questions How have ATRA shares performed this year? Atara Biotherapeutics' stock was trading at $18.09 on January 1st, 2026. Since then, ATRA shares have decreased by 55.3% and is now trading at $8.09. How were Atara Biotherapeutics' earnings last quarter? Atara Biotherapeutics, Inc. (NASDAQ:ATRA) announced its quarterly earnings results on Wednesday, August, 12th. The biotechnology company reported ($0.32) EPS for the quarter, missing analysts' consensus estimates of ($0.32) by $0.01. The biotechnology company had revenue of $0.63 million for the quarter, compared to analyst estimates of $0.55 million. Atara Biotherapeutics had a negative trailing twelve-month return on equity of 79.12% and a negative net margin of 269.42%. When did Atara Biotherapeutics' stock split? Atara Biotherapeutics shares reverse split before market open on Thursday, June 20th 2024.The 1-25 reverse split was announced on Thursday, June 20th 2024. The number of shares owned by shareholders was adjusted after the closing bell on Thursday, June 20th 2024. An investor that had 100 shares of stock prior to the reverse split would have 4 shares after the split. When did Atara Biotherapeutics IPO? Atara Biotherapeutics (ATRA) raised $75 million in an IPO on Thursday, October 16th 2014. The company issued 5,000,000 shares at $14.00-$16.00 per share. How do I buy shares of Atara Biotherapeutics? Shares of ATRA stock can be purchased through any online brokerage account. Popular online brokerages with access to the U.S. stock market include Charles Schwab, E*TRADE, Fidelity, and Vanguard Brokerage Services. What other stocks do shareholders of Atara Biotherapeutics own? Based on aggregate information from My MarketBeat watchlists, some other companies that Atara Biotherapeutics investors own include Agenus (AGEN), CRISPR Therapeutics (CRSP), Pfizer (PFE), Athersys (ATHX), Advanced Micro Devices (AMD), Bristol Myers Squibb (BMY) and FuelCell Energy (FCEL). Company Calendar Last Earnings8/12/2026Today8/15/2026Next Earnings (Estimated)10/29/2026Fiscal Year End12/31/2026Get Stock Alerts Health Indicator TradeSmith's Health IndicatorA long-term volatility-based measure designed for securities held 12 months or longer.Green: Strong and healthy uptrend with normal pullbacks.Yellow: Significant pullback but still within expected volatility.Red: Dropped beyond expected volatility; considered unhealthy. Yellow Zone (2d) 1-Year History Aug 25 Nov 25 Feb 26 May 26 Aug 26 As of 2 days ago, ATRA's financial health entered the Yellow zone, according to TradeSmith. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorHealthcare Industry Biotechnology Sub-IndustryBiotechnology Current SymbolNASDAQ:ATRA CIK1604464 Webwww.atarabio.com Phone(805) 623-4211FaxN/AEmployees330Year Founded2012Price Target and Rating Average Price Target for Atara Biotherapeutics$9.50 High Price Target$13.00 Low Price Target$6.00 Potential Upside/Downside+17.4%Consensus RatingHold Rating Score (0-4)2.00 Research Coverage3 Analysts Profitability EPS (Trailing Twelve Months)($0.67) Trailing P/E RatioN/A Forward P/E RatioN/A P/E GrowthN/ANet Income$32.69 million Net Margins-269.42% Pretax Margin-268.95% Return on Equity-79.12% Return on Assets-73.01% Debt Debt-to-Equity RatioN/A Current Ratio1.98 Quick Ratio2.16 Sales & Book Value Annual Sales$120.77 million Price / Sales0.60 Cash Flow$4.62 per share Price / Cash Flow1.75 Book Value($4.11) per share Price / Book-1.97Miscellaneous Outstanding Shares9,010,000Free Float5,298,000Market Cap$72.89 million OptionableNo Data Beta0.12 Social Links 7 Stocks That Could Lead the Next Market BoomTesla, Nvidia, and Google helped shape the last era of market growth, but the next wave could come from a new group of companies. 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