<SEC-DOCUMENT>0001140361-17-046221-index.html : 20171214
<SEC-HEADER>0001140361-17-046221.hdr.sgml : 20171214
<ACCEPTANCE-DATETIME>20171214154642
ACCESSION NUMBER:		0001140361-17-046221
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20171108
FILED AS OF DATE:		20171214
DATE AS OF CHANGE:		20171214

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			EcoR1 Capital Fund Qualified, L.P.
		CENTRAL INDEX KEY:			0001598292
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37378
		FILM NUMBER:		171256110

	BUSINESS ADDRESS:	
		STREET 1:		409 ILLINOIS STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94158
		BUSINESS PHONE:		415-448-6534

	MAIL ADDRESS:	
		STREET 1:		409 ILLINOIS STREET
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94158

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			aTYR PHARMA INC
		CENTRAL INDEX KEY:			0001339970
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				203435077
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3545 JOHN HOPKINS COURT, STE #250
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		858-731-8389

	MAIL ADDRESS:	
		STREET 1:		3545 JOHN HOPKINS COURT, STE #250
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
Document 1 - file: doc1.html

Document 1 - RAW XML: doc1.xml

</DOCUMENT>
</SEC-DOCUMENT>