<SEC-DOCUMENT>0001104659-26-002589-index.html : 20260109
<SEC-HEADER>0001104659-26-002589.hdr.sgml : 20260109
<ACCEPTANCE-DATETIME>20260109214258
ACCESSION NUMBER:		0001104659-26-002589
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260107
FILED AS OF DATE:		20260109
DATE AS OF CHANGE:		20260109

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MOULDER LEON O JR
		CENTRAL INDEX KEY:			0001228865
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42270
		FILM NUMBER:		26524473

	MAIL ADDRESS:	
		STREET 1:		C/O TESARO, INC.
		STREET 2:		1000 WINTER STREET, SUITE 3300
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Zenas BioPharma, Inc.
		CENTRAL INDEX KEY:			0001953926
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		852 WINTER STREET, SUITE 250
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451
		BUSINESS PHONE:		857-271-2954

	MAIL ADDRESS:	
		STREET 1:		852 WINTER STREET, SUITE 250
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Zenas BioPharma (Cayman) Ltd
		DATE OF NAME CHANGE:	20221108
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
<FILENAME>tm262858-1_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
Document 1 - file: tm262858-1_4seq1.html

Document 1 - RAW XML: tm262858-1_4seq1.xml

</DOCUMENT>
</SEC-DOCUMENT>