NASDAQ:ATRA Atara Biotherapeutics (ATRA) Stock Price, News & Analysis $9.90 -0.38 (-3.70%) As of 06/2/2026 04:00 PM Eastern Add Compare Share Share Stock Analysis Stock AnalysisAnalyst ForecastsChartCompetitorsEarningsFDA EventsHeadlinesInsider TradesOwnershipSEC FilingsShort InterestTrendsBuy 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$9.84▼$10.4250-Day Range$4.32▼$11.2652-Week Range$3.92▼$19.15Volume62,728 shsAverage Volume4.26 million shsMarket Capitalization$89.20 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™ Stocks18th Percentile Overall ScoreATRA MarketRank™: Atara Biotherapeutics scored higher than 18% of companies evaluated by MarketBeat, and ranked 809th out of 868 stocks in the medical sector. Scores are calculated by averaging available category scores, with extra weight given to analysis and valuation. Analyst's Opinion1.6 / 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/DownsideThe consensus price target for Atara Biotherapeutics is close to its current price, suggesting limited near-term upside or downside.Amount of Analyst CoverageAtara Biotherapeutics has only been the subject of 3 research reports in the past 90 days.Read more about Atara Biotherapeutics' stock forecast and price target. Earnings and Valuation0.0 / 5Proj. Earnings GrowthN/A Earnings GrowthEarnings for Atara Biotherapeutics are expected to remain at $0.20 per share in the coming year.Price to Earnings Ratio vs. the MarketThe P/E ratio of Atara Biotherapeutics is -14.78, 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 -14.78, 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 Interest2.0 / 5Short Interest LevelBearish Percentage of Shares Shorted10.31% 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 0.07, which is generally considered an acceptable ratio of short interest to trading volume.Change versus previous monthShort interest in Atara Biotherapeutics has recently increased by 78.53%, indicating that investor sentiment is decreasing 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 Media2.0 / 5News Sentiment0.22 News SentimentAtara Biotherapeutics has a news sentiment score of 0.22. 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 0.78 average news sentiment score of Medical companies.News Coverage This WeekMarketBeat has tracked 3 news articles for Atara Biotherapeutics this week, compared to 6 articles on an average week.Search Interest7 people have searched for ATRA on MarketBeat in the last 30 days. 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 $3,235,695.00 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. Receive ATRA Stock News and Ratings via Email Sign-up to receive the latest news and ratings for Atara Biotherapeutics and its competitors with MarketBeat's FREE daily newsletter. Submit View SMS TermsSMS is currently available in Australia, Belgium, Canada, France, Germany, Ireland, Italy, New Zealand, the Netherlands, Singapore, South Africa, Spain, Switzerland, the United Kingdom, and the United States. By entering your phone number and clicking the sign-up button, you agree to receive periodic text messages from MarketBeat at the phone number you submitted, including texts that may be sent using an automatic telephone dialing system. Message and data rates may apply. Message frequency will vary. Messages will consist of stock alerts, news stories, and partner advertisements/offers. Consent is not a condition of the purchase of any goods or services. Text HELP for help/customer support. 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 Inc (ATRA)May 31 at 7:05 PM | 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.comALERT: Drop these 5 stocks before the market opens tomorrow!The Wall Street Journal is already raising the alarm about a potential market crash, and Weiss Ratings research points to the first half of 2026 as a particularly rough stretch for certain holdings. Some of America's most popular stocks could take serious damage as a radical market shift plays out. Analysts at Weiss Ratings have identified five names you may want to remove from your portfolio before this unfolds. If any of these are in your portfolio, now is the time to review your positions.June 3 at 1:00 AM | Weiss Ratings (Ad)ATRA Deadline: Rosen Law Firm Urges Atara Biotherapeutics, Inc. (NASDAQ: ATRA) Stockholders with Losses in Excess of $100K to Contact the Firm for Information About Their RightsMay 22, 2026 | businesswire.comAtara Biotherapeutics, Inc. (ATRA) Shareholders Who Lost Money Have Opportunity to Lead Securities Fraud LawsuitMay 22, 2026 | prnewswire.comATRA DEADLINE TODAY: ROSEN, A LEADING LAW FIRM, Encourages Atara Biotherapeutics, Inc. Investors with Losses in Excess of $100K to Secure Counsel Before Important May 22 Deadline in Securities Class Action - ATRAMay 22, 2026 | globenewswire.comATRA FINAL DEADLINE ALERT: Faruqi & Faruqi, LLP Reminds Atara Biotherapeutics (ATRA) Investors of Securities Class Action Deadline on May 22, 2026May 22, 2026 | businesswire.comAtara Biotherapeutics (NASDAQ:ATRA) Major Shareholder Sells $3,165,804.60 in StockMay 12, 2026 | insidertrades.comSee More Headlines ATRA Stock Analysis - Frequently Asked Questions How have ATRA shares performed this year? Atara Biotherapeutics' stock was trading at $18.09 at the start of the year. Since then, ATRA stock has decreased by 45.3% and is now trading at $9.90. How were Atara Biotherapeutics' earnings last quarter? Atara Biotherapeutics, Inc. (NASDAQ:ATRA) released its earnings results on Tuesday, May, 12th. The biotechnology company reported ($0.29) EPS for the quarter, topping analysts' consensus estimates of ($0.33) by $0.04. The biotechnology company earned $0.52 million during the quarter, compared to the consensus estimate of $2.90 million. Atara Biotherapeutics had a negative trailing twelve-month return on equity of 79.12% and a negative net margin of 40.91%. When did Atara Biotherapeutics' stock split? Atara Biotherapeutics's stock reverse split 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 initial public offering on Thursday, October 16th 2014. The company issued 5,000,000 shares at $14.00-$16.00 per share. Who are Atara Biotherapeutics' major shareholders? Top institutional shareholders of Atara Biotherapeutics include EcoR1 Capital LLC (1.11%). Insiders that own company stock include Innovation Ltd Panacea, Anhco Nguyen, Pascal Touchon, Eric J Hyllengren, Yanina Grant-Huerta, Jill Henrich, Carol Giltner Gallagher, Amar Murugan and William K Heiden. View institutional ownership trends. 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 Earnings5/12/2026Today6/03/2026AGM 20266/09/2026Next Earnings (Estimated)8/10/2026Fiscal 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. Green Zone (2w+) 1-Year History Jun 25 Sep 25 Dec 25 Mar 26 Jun 26 For the last 2 weeks, ATRA's financial health has been in the Green zone, according to TradeSmith. Industry, Sector and Symbol Stock ExchangeNASDAQ SectorMedical Industry MED - BIOMED/GENE Sub-IndustryPharmaceutical Products 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-4.0%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 Ratio49.50 P/E GrowthN/ANet Income$32.69 million Net Margins-40.91% Pretax Margin-40.78% Return on Equity-79.12% Return on Assets-35.29% Debt Debt-to-Equity RatioN/A Current Ratio2.16 Quick Ratio2.16 Sales & Book Value Annual Sales$120.77 million Price / Sales0.74 Cash Flow$4.69 per share Price / Cash Flow2.11 Book Value($5.34) per share Price / Book-1.85Miscellaneous Outstanding Shares9,010,000Free Float5,298,000Market Cap$89.20 million OptionableNo Data Beta0.11 Social Links Analysts Agree—These Gold Picks Outshine the RestUnlock the timeless value of gold with our exclusive 2026 Gold Forecasting Report. 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