<SEC-DOCUMENT>0001961863-24-000125-index.html : 20240321
<SEC-HEADER>0001961863-24-000125.hdr.sgml : 20240321
<ACCEPTANCE-DATETIME>20240321183252
ACCESSION NUMBER:		0001961863-24-000125
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240321
DATE AS OF CHANGE:		20240321

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Arcellx, Inc.
		CENTRAL INDEX KEY:			0001786205
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				472855917
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-41259
		FILM NUMBER:		24772615

	BUSINESS ADDRESS:	
		STREET 1:		800 BRIDGE PARKWAY
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94065
		BUSINESS PHONE:		240-327-0603

	MAIL ADDRESS:	
		STREET 1:		800 BRIDGE PARKWAY
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94065

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SR One Co-Invest II, LLC
		CENTRAL INDEX KEY:			0001867644
		ORGANIZATION NAME:           	
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144

	BUSINESS ADDRESS:	
		STREET 1:		C/O SR ONE CAPITAL MANAGEMENT, LP
		STREET 2:		985 OLD EAGLE SCHOOL ROAD, SUITE 511
		CITY:			WAYNE
		STATE:			PA
		ZIP:			19087
		BUSINESS PHONE:		610-567-1000

	MAIL ADDRESS:	
		STREET 1:		C/O SR ONE CAPITAL MANAGEMENT, LP
		STREET 2:		985 OLD EAGLE SCHOOL ROAD, SUITE 511
		CITY:			WAYNE
		STATE:			PA
		ZIP:			19087
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
Document 1 - file: primary_doc.html

Document 1 - RAW XML: primary_doc.xml

</DOCUMENT>
</SEC-DOCUMENT>