Tabelecleucel (tab-cel\u00ae <\/sup>or Ebvallo\u2122) for Post-Transplant Lymphoproliferative Disease (PTLD)<\/b><\/p>\n \nAs previously communicated, Pierre Fabre Pharmaceuticals (PFP), with Atara\u2019s support, had a productive meeting with the FDA and discussed a potential path forward to resubmitting the tab-cel Biologics License Application (BLA). The FDA agreed that a single arm study using an appropriate historical control applicable to the trial population, conducted in a pre-specified manner, could serve as an adequate and well controlled study and provide safety and efficacy data in support of a marketing application of tab-cel for the proposed indication.<\/p>\n \nPFP has indicated they intend to submit an updated dataset with additional patients and longer follow-up from the pivotal Phase 3 single arm ALLELE study as well as supportive data, as a part of the resubmission plan being defined with the FDA. Atara anticipates providing a further regulatory update in the third quarter.<\/p>\n First Quarter 2026 Financial Results<\/i><\/b><\/p>\n 2026 Outlook and Cash Runway:<\/b><\/p>\n About Atara Biotherapeutics, Inc.<\/b><\/p>\n \nAtara is harnessing the natural power of the immune system to develop off-the-shelf cell therapies for difficult-to-treat cancers and autoimmune conditions that can be rapidly delivered to patients from inventory. With cutting-edge science and differentiated approach, Atara is the first company in the world to receive regulatory approval of an allogeneic T-cell immunotherapy. Our advanced and versatile T-cell platform does not require T-cell receptor or HLA gene editing and forms the basis of a diverse portfolio of investigational therapies that target EBV, the root cause of certain diseases. Atara is headquartered in Southern California. For more information, visit atarabio.com<\/a> and follow @Atarabio<\/a> on X<\/a> and LinkedIn<\/a>.<\/p>\n Forward-Looking Statements<\/b><\/p>\n \nThis press release contains or may imply “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934. For example, forward-looking statements include statements regarding: (1) the development, timing and progress of tab-cel, including the timing of PFP\u2019s resubmission, the potential characteristics and benefits of tab-cel, and the results of, and prospects for bringing tab-cel to U.S. patients with EBV+ PTLD, the global partnership with Pierre Fabre Medicament involving tab-cel, and the potential financial benefits to Atara as a result of the global partnership with Pierre Fabre Medicament, including the receipt, timing and amount of any payments to be received by Atara thereunder; and (2) Atara\u2019s cash runway, receipt of potential milestone payments, and estimated reduction in operating expenses, including Atara\u2019s ability to fund its planned operations into mid-2027. Because such statements deal with future events and are based on Atara\u2019s current expectations, they are subject to various risks and uncertainties and actual results, performance or achievements of Atara could differ materially from those described in or implied by the statements in this press release. These forward-looking statements are subject to risks and uncertainties, including, without limitation, risks and uncertainties associated with the costly and time-consuming pharmaceutical product development process and the uncertainty of clinical success; risks related to FDA\u2019s review of tab-cel, including the risk that a resubmission of the tab-cel BLA may not address the deficiencies identified in the Complete Response Letter received on January 9, 2026 or other issues that may be raised by the FDA on review; the fact that PFP, and not Atara, holds the tab-cel BLA and controls the timing, content and strategy of any resubmission and related FDA interactions, and Atara’s ability to influence the resubmission process is limited; our ability to access capital, and the sufficiency of Atara\u2019s cash resources and access to additional capital on favorable terms or at all; and other risks and uncertainties affecting Atara, including those discussed in Atara\u2019s filings with the Securities and Exchange Commission, including in the \u201cRisk Factors\u201d and \u201cManagement\u2019s Discussion and Analysis of Financial Condition and Results of Operations\u201d sections of Atara\u2019s most recently filed periodic reports on Form 10-K and Form 10-Q and subsequent filings and in the documents incorporated by reference therein. Except as otherwise required by law, Atara disclaims any intention or obligation to update or revise any forward-looking statements, which speak only as of the date hereof, whether as a result of new information, future events or circumstances or otherwise.<\/p>\n Financials<\/b><\/p>\n ATARA BIOTHERAPEUTICS, INC.<\/b><\/p>\n Condensed Consolidated Balance Sheets<\/b><\/p>\n (Unaudited)<\/b><\/p>\n (In thousands)<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n March 31,<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n December 31,<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2026<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2025<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Assets<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCurrent assets:<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCash and cash equivalents<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n8,360<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n8,482<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccounts receivable<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,253<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther current assets<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3,813<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,477<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nTotal current assets<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n12,173<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n12,212<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nProperty and equipment, net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n55<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n73<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOperating lease assets<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n6,879<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n7,064<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther assets<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n890<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n886<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nTotal assets<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n19,997<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n20,235<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Liabilities and stockholders\u2019 equity (deficit)<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCurrent liabilities:<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccounts payable<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n637<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n127<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccrued compensation<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n629<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,271<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccrued research and development expenses<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n41<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n82<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nDeferred revenue<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n684<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n716<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nLiability related to the sale of future revenues \u2013 current portion<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n715<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n9,750<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther current liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,939<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,976<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nTotal current liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n5,645<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n14,922<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOperating lease liabilities \u2013 long-term<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n9,076<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n9,347<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nLiability related to the sale of future revenues \u2013 long-term<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n40,759<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n32,673<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther long-term liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,829<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,795<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nTotal liabilities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n57,309<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n58,737<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCommitments and contingencies (Note 9)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nStockholders\u2019 equity (deficit):<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCommon stock\u2014$0.0001 par value, 500,000 shares authorized as of March 31, 2026 and December 31, 2025; 8,512 and 7,324 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAdditional paid-in capital<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,988,697<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,983,361<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccumulated other comprehensive income (loss)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccumulated deficit<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(2,026,010<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(2,021,865<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nTotal stockholders\u2019 equity (deficit)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(37,312<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(38,502<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nTotal liabilities and stockholders\u2019 equity (deficit)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n19,997<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n20,235<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/table>\n ATARA BIOTHERAPEUTICS, INC.<\/b><\/p>\n Condensed Consolidated Statements of Operations and Comprehensive Loss<\/b><\/p>\n (Unaudited)<\/b><\/p>\n (In thousands, except per share amounts)<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n Three Months Ended March 31,<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2026<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2025<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCommercialization revenue<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n516<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n98,149<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCosts and operating expenses:<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCost of commercialization revenue<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n124<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n20,439<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nResearch and development expenses<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n164<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n27,433<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nGeneral and administrative expenses<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3,597<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n11,475<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nTotal costs and operating expenses<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3,885<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n59,347<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nIncome (loss) from operations<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(3,369<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n38,802<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther income (expense), net:<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nInterest income<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n54<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n236<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nInterest expense<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(830<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(1,017<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nOther income (expense), net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(11<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nTotal other income (expense), net<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(776<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(792<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nIncome (loss) before provision for (benefit from) income taxes<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(4,145<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n38,010<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nProvision for (benefit from) income taxes<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u2014<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nNet income (loss)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(4,145<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n38,010<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nOther comprehensive gain (loss):<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nUnrealized gain (loss) on available-for-sale securities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(1<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(8<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nComprehensive income (loss)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(4,146<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n38,002<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nBasic (loss) earnings per common share<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(0.29<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n3.53<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nDiluted (loss) earnings per common share<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(0.29<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n3.50<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nBasic and diluted weighted-average shares outstanding<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n14,081<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n10,764<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nDiluted weighted-average shares outstanding<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n14,081<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n10,851<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/table>\n \n\u00a0<\/p>\n View source version on businesswire.com: <\/span>https:\/\/www.businesswire.com\/news\/home\/20260512257848\/en\/<\/a><\/span><\/p>\n Investor and Media Relations KEYWORDS:<\/b> California United States North America<\/p>\n INDUSTRY KEYWORDS:<\/b> Biotechnology Pharmaceutical Health Oncology<\/p>\n\n
\n
\n
\n \n \n \n \n \n \n \u00a0<\/td>\n<\/tr>\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n
\n \n \n \n \n \u00a0<\/td>\n<\/tr>\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n <\/p>\n
\n<\/b>
Amber Daugherty
\n
Sr. Director, Strategy and Operations
\n
adaugherty@atarabio.com<\/a><\/p>\n
![\"Logo\"](\"https:\/\/mms.businesswire.com\/media\/20260512257848\/en\/2803294\/3\/Atara-Bio1_Horiz_R_3000px20180810.jpg\")
<\/td>\n<\/tr>\n