Current report filing

Document and Entity Information

Document and Entity Information
Jun. 16, 2020
Cover [Abstract]  
Amendment Flag false
Entity Central Index Key 0001604464
Document Type 8-K
Document Period End Date Jun. 16, 2020
Entity Registrant Name Atara Biotherapeutics, Inc.
Entity Incorporation State Country Code DE
Entity File Number 001-36548
Entity Tax Identification Number 46-0920988
Entity Address, Address Line One 611 Gateway Boulevard
Entity Address, Address Line Two Suite 900
Entity Address, City or Town South San Francisco
Entity Address, State or Province CA
Entity Address, Postal Zip Code 94080
City Area Code (650)
Local Phone Number 278-8930
Written Communications false
Soliciting Material false
Pre Commencement Tender Offer false
Pre Commencement Issuer Tender Offer false
Security 12b Title Common Stock, par value $0.0001 per share
Trading Symbol ATRA
Security Exchange Name NASDAQ
Entity Emerging Growth Company false