Atara Biotherapeutics

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Q1 2021

Quarter Ended Mar 31, 2021
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For Fiscal Year Ending Dec 31, 2020

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Company Overview

Atara Biotherapeutics is a leading off-the-shelf, allogeneic T-cell immunotherapy company developing novel treatments for patients with cancer, autoimmune and viral diseases. The company was founded in 2012, and since 2014 the company’s stock has been publicly traded on Nasdaq under the symbol ATRA.

Atara’s most advanced T-cell immunotherapy in development, tabelecleucel or tab-cel® (formerly known as ATA129), is being developed for the treatment of patients with Epstein-Barr virus (EBV) associated post-transplant lymphoproliferative disorder (EBV+ PTLD), as well as other EBV associated hematologic and solid tumors, including nasopharyngeal carcinoma (NPC).

Atara is also developing off-the-shelf, allogeneic ATA188 for the potential treatment of multiple sclerosis (MS).

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Investor & Media Contacts

Investors

Eric Hyllengren
Vice President, Investor Relations & Finance
T: (805) 395-9669
ehyllengren@atarabio.com

Susanna Chau
Director, Investor Relations
T: 650-491-5796
schau@atarabio.com

Media

Alex Chapman
Vice President, Corporate Communications & Public Affairs
T: (805) 456-4772
achapman@atarabio.com

Transfer Agent

Computershare Trust Company, N.A.
P.O. Box 505000
Louisville, KY 40233
T: (781) 575-2879
web.queries@computershare.com