<SEC-DOCUMENT>0000950123-14-006723-index.html : 20141113
<SEC-HEADER>0000950123-14-006723.hdr.sgml : 20141113
<ACCEPTANCE-DATETIME>20140611171939
<PRIVATE-TO-PUBLIC>
ACCESSION NUMBER:		0000950123-14-006723
CONFORMED SUBMISSION TYPE:	DRSLTR
PUBLIC DOCUMENT COUNT:		2
FILED AS OF DATE:		20140611

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Atara Biotherapeutics, Inc.
		CENTRAL INDEX KEY:			0001604464
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				460920988
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DRSLTR

	BUSINESS ADDRESS:	
		STREET 1:		3260 BAYSHORE BOULEVARD
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005
		BUSINESS PHONE:		415-287-2410

	MAIL ADDRESS:	
		STREET 1:		3260 BAYSHORE BOULEVARD
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005
</SEC-HEADER>
<DOCUMENT>
<TYPE>DRSLTR
<SEQUENCE>1
<FILENAME>filename1.htm
<TEXT>
Document 1 - file: filename1.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>g692340g38t44.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g692340g38t44.jpg

</DOCUMENT>
</SEC-DOCUMENT>