\n\u201cWe continue to focus on streamlining our costs and liabilities, allowing us to be a nimbler, fit for purpose organization,\u201d said Cokey Nguyen Ph.D., President and Chief Executive Officer of Atara. \u201cWith the adjustments we have made we are able to focus on supporting our partner, Pierre Fabre Pharmaceuticals, as they work towards addressing the concerns in the latest Complete Response Letter with the agency. We strongly believe that tabelecleucel can bring substantial benefit to post-transplant lymphoproliferative disease patients and we are committed to supporting Pierre Fabre Pharmaceuticals as they get this life-saving drug to the finish line in the U.S.\u201d<\/p>\n
Tabelecleucel (tab-cel\u00ae <\/sup>or Ebvallo\u2122) for Post-Transplant Lymphoproliferative Disease (PTLD)<\/b><\/p>\n \nA Type A meeting with the U.S. Food and Drug Administration (FDA) has been scheduled for our partner Pierre Fabre Pharmaceuticals to discuss the issues raised by the FDA in the Complete Response Letter received in January 2026. We anticipate providing a regulatory update in the second quarter.<\/p>\n Corporate Updates<\/b><\/p>\n \nAs previously communicated, Atara entered into an amendment (Amendment) to the Purchase and Sale Agreement dated as of December 20, 2022 with a fund managed by HealthCare Royalty (\u201cHCRx\u201d). Under the terms of the Amendment, HCRx agreed to amend the due date of the one-time $9.0 million cash payment associated with the achievement of a certain milestone from June 30, 2026 to January 1, 2028 in exchange for the issuance of a warrant to purchase up to 400,000 shares of Atara common stock.<\/p>\n Financial Update:<\/b><\/p>\n Fourth Quarter and Full Year 2025 Financial Results:<\/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 and results of the Type A meeting and the potential path forward for the timely accelerated approval of EBVALLO\u2122, 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; (2) the timing of the $9.0 million cash payment to HCRx; (3) Atara\u2019s cash runway, receipt of potential milestone payments, and estimated reduction in operating expenses, including Atara\u2019s ability to fund its planned operations to year-end 2026; and (4) Atara\u2019s evaluation of strategic alternatives and ability to consummate one or more strategic transactions. 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 the resubmitted BLA for tab-cel; our ability to access capital, and the sufficiency of Atara\u2019s cash resources and access to additional capital on favorable terms or at all; the timing of the strategic review process; whether Atara will pursue any strategic alternatives; in the event Atara pursues a strategic alternative, that the strategic alternative may not be attractive or ultimately consummated; whether any strategic alternative will result in additional value for Atara and its stockholders; whether the process will have an adverse impact on Atara 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 the Company\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 Consolidated Balance Sheets<\/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 December 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 2025<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2024<\/b><\/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 \n8,482<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n25,030<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nShort-term investments<\/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 \n17,466<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nRestricted cash<\/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 \n146<\/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 \n1,253<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,482<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nInventories<\/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 \n10,655<\/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 \n2,477<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n10,115<\/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 \n12,212<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n64,894<\/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 \n73<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,294<\/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 \n7,064<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n39,807<\/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 \n886<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3,103<\/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 \n20,235<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n109,098<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n Liabilities and stockholders\u2019 equity (deficit)<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nCurrent liabilities:<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccounts payable<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n127<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n4,367<\/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 \n1,271<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n6,589<\/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 \n82<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n7,984<\/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 \n716<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n95,092<\/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 \n9,750<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n382<\/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 \n2,976<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n20,160<\/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 \n14,922<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n134,574<\/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 \n9,347<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n29,914<\/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 \n32,673<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n38,624<\/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 \n1,795<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n3,269<\/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 \n58,737<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n206,381<\/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$0.0001 par value, 500,000 shares authorized as of December 31, 2025 and 2024, respectively; 7,324 and 5,859 shares issued and outstanding as of December 31, 2025 and 2024, respectively<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAdditional paid-in capital<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,983,361<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1,957,261<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccumulated other comprehensive income<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n1<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n8<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nAccumulated deficit<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(2,021,865<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(2,054,553<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nTotal stockholders\u2019 equity (deficit)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(38,502<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(97,283<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nTotal liabilities and stockholders\u2019 equity (deficit)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n20,235<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n109,098<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n<\/table>\n ATARA BIOTHERAPEUTICS, INC.<\/b><\/p>\n Consolidated Statements of Operations and Comprehensive Income (Loss)<\/b><\/p>\n (In thousands, except per share amounts)<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n Years Ended December 31,<\/b><\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2025<\/b><\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n 2024<\/b><\/p>\n<\/td>\n<\/tr>\n \nCommercialization revenue<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n120,772<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n128,940<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nTotal revenue<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n120,772<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n128,940<\/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 \n21,212<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n21,009<\/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 \n37,445<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n151,483<\/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 \n26,253<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n39,886<\/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 \n84,910<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n212,378<\/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 \n35,862<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(83,438<\/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\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 \n683<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n2,110<\/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(3,792<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(4,615<\/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(34<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n528<\/p>\n<\/td>\n \n\u00a0<\/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(3,143<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(1,977<\/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 \n32,719<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(85,415<\/p>\n<\/td>\n \n)<\/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 \n31<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(12<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nNet income (loss)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n32,688<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(85,403<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nOther comprehensive gain (loss):<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nUnrealized gain (loss) on available-for-sale securities<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n(7<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n212<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nComprehensive income (loss)<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n32,681<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(85,191<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n<\/tr>\n \nBasis earnings (loss) per common share<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n2.61<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(11.41<\/p>\n<\/td>\n \n)<\/p>\n<\/td>\n<\/tr>\n \nDiluted earnings (loss) per common share<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n2.57<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n$<\/p>\n<\/td>\n \n(11.41<\/p>\n<\/td>\n \n)<\/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 weighted-average shares outstanding<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n12,544<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n7,488<\/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 \n12,718<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n\u00a0<\/p>\n<\/td>\n \n7,488<\/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\/20260316154875\/en\/<\/a><\/span><\/p>\n Investor and Media Relations KEYWORDS:<\/b> United States North America California<\/p>\n INDUSTRY KEYWORDS:<\/b> Biotechnology Pharmaceutical Health Oncology<\/p>\n\n
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\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 \n \n \n \n \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 \n \n \n \n \n \n \n \n <\/p>\n
\n<\/b>
Amber Daugherty
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Sr. Director, Strategy and Operations
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adaugherty@atarabio.com<\/a><\/p>\n
![\"Logo\"](\"https:\/\/mms.businesswire.com\/media\/20260316154875\/en\/2748542\/3\/Atara-Bio1_Horiz_R_3000px20180810.jpg\")
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