<SEC-DOCUMENT>0000903423-19-000020-index.html : 20190110
<SEC-HEADER>0000903423-19-000020.hdr.sgml : 20190110
<ACCEPTANCE-DATETIME>20190110171740
ACCESSION NUMBER:		0000903423-19-000020
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20190110
DATE AS OF CHANGE:		20190110

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Eidos Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001731831
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				463733671
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-90540
		FILM NUMBER:		19520920

	BUSINESS ADDRESS:	
		STREET 1:		101 MONTGOMERY STREET, SUITE 2550
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104
		BUSINESS PHONE:		650-391-9740

	MAIL ADDRESS:	
		STREET 1:		101 MONTGOMERY STREET, SUITE 2550
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94104

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			VIKING GLOBAL INVESTORS LP
		CENTRAL INDEX KEY:			0001103804
		IRS NUMBER:				134055118
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		55 RAILROAD AVENUE
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
		BUSINESS PHONE:		212-672-7050

	MAIL ADDRESS:	
		STREET 1:		55 RAILROAD AVENUE
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>eidos13ga.htm
<TEXT>
Document 1 - file: eidos13ga.htm

</DOCUMENT>
</SEC-DOCUMENT>