<SEC-DOCUMENT>0001387131-21-002340-index.html : 20210216
<SEC-HEADER>0001387131-21-002340.hdr.sgml : 20210216
<ACCEPTANCE-DATETIME>20210212195811
ACCESSION NUMBER:		0001387131-21-002340
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210216
DATE AS OF CHANGE:		20210212
GROUP MEMBERS:		DAVID C. OTT
GROUP MEMBERS:		O. ANDREAS HALVORSEN
GROUP MEMBERS:		ROSE S. SHABET
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES GP LLC
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES ILLIQUID INVESTMENTS SUB-MASTER LP
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES PORTFOLIO GP LLC

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			4D Molecular Therapeutics Inc.
		CENTRAL INDEX KEY:			0001650648
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				473506994
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91921
		FILM NUMBER:		21631277

	BUSINESS ADDRESS:	
		STREET 1:		5858 HORTON STREET #455
		CITY:			EMERYVILLE
		STATE:			CA
		ZIP:			94608
		BUSINESS PHONE:		5105052680

	MAIL ADDRESS:	
		STREET 1:		5858 HORTON STREET #455
		CITY:			EMERYVILLE
		STATE:			CA
		ZIP:			94608

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	4D Molecular Therapeutics Inc
		DATE OF NAME CHANGE:	20150811

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>fdmt-sc13ga_123120.htm
<DESCRIPTION>AMENDMENT NO. 1
<TEXT>
Document 1 - file: fdmt-sc13ga_123120.htm

</DOCUMENT>
</SEC-DOCUMENT>