<SEC-DOCUMENT>0001140361-23-044775-index.html : 20230921
<SEC-HEADER>0001140361-23-044775.hdr.sgml : 20230921
<ACCEPTANCE-DATETIME>20230921171041
ACCESSION NUMBER:		0001140361-23-044775
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20230921
DATE AS OF CHANGE:		20230921
GROUP MEMBERS:		DAVID C. OTT
GROUP MEMBERS:		O. ANDREAS HALVORSEN
GROUP MEMBERS:		ROSE S. SHABET
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES DRAWDOWN (AGGREGATOR) LP
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES DRAWDOWN GP LLC
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES DRAWDOWN PORTFOLIO GP LLC
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES GP LLC
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES ILLIQUID INVESTMENTS SUB-MASTER LP
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES PARENT GP LLC
GROUP MEMBERS:		VIKING GLOBAL OPPORTUNITIES PORTFOLIO GP LLC

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RayzeBio, Inc.
		CENTRAL INDEX KEY:			0001825367
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-94159
		FILM NUMBER:		231269736

	BUSINESS ADDRESS:	
		STREET 1:		5505 MOREHOUSE DRIVE, SUITE 300
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121
		BUSINESS PHONE:		(619) 937-2754

	MAIL ADDRESS:	
		STREET 1:		5505 MOREHOUSE DRIVE, SUITE 300
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

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

	BUSINESS ADDRESS:	
		STREET 1:		600 WASHINGTON BLVD.
		STREET 2:		FLOOR 11
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06901
		BUSINESS PHONE:		212-672-7050

	MAIL ADDRESS:	
		STREET 1:		600 WASHINGTON BLVD.
		STREET 2:		FLOOR 11
		CITY:			STAMFORD
		STATE:			CT
		ZIP:			06901
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>ef20010907_sc13g.htm
<DESCRIPTION>SC 13G
<TEXT>
Document 1 - file: ef20010907_sc13g.htm

</DOCUMENT>
</SEC-DOCUMENT>