<SEC-DOCUMENT>0001178913-21-001591-index.html : 20210504
<SEC-HEADER>0001178913-21-001591.hdr.sgml : 20210504
<ACCEPTANCE-DATETIME>20210504132104
ACCESSION NUMBER:		0001178913-21-001591
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210504
FILED AS OF DATE:		20210504
DATE AS OF CHANGE:		20210504

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SPHERA FUNDS MANAGEMENT LTD.
		CENTRAL INDEX KEY:			0001496201
		STATE OF INCORPORATION:			L3

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40366
		FILM NUMBER:		21887381

	BUSINESS ADDRESS:	
		STREET 1:		21 HA'ARBA'AH STREET
		CITY:			TEL AVIV
		STATE:			L3
		ZIP:			64739
		BUSINESS PHONE:		972-3-6845535

	MAIL ADDRESS:	
		STREET 1:		21 HA'ARBA'AH STREET
		CITY:			TEL AVIV
		STATE:			L3
		ZIP:			64739

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Sphera Global Healthcare Management LP
		CENTRAL INDEX KEY:			0001599854
		STATE OF INCORPORATION:			L3
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40366
		FILM NUMBER:		21887383

	BUSINESS ADDRESS:	
		STREET 1:		C/O SPHERA FUNDS MANAGEMENT LTD.
		STREET 2:		21 HA'ARBA'AH STREET
		CITY:			TEL AVIV
		STATE:			L3
		ZIP:			64739
		BUSINESS PHONE:		972-3-6845535

	MAIL ADDRESS:	
		STREET 1:		C/O SPHERA FUNDS MANAGEMENT LTD.
		STREET 2:		21 HA'ARBA'AH STREET
		CITY:			TEL AVIV
		STATE:			L3
		ZIP:			64739

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Sphera Global Healthcare GP Ltd.
		CENTRAL INDEX KEY:			0001599855
		STATE OF INCORPORATION:			L3
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40366
		FILM NUMBER:		21887382

	BUSINESS ADDRESS:	
		STREET 1:		C/O SPHERA FUNDS MANAGEMENT LTD.
		STREET 2:		21 HA'ARBA'AH STREET
		CITY:			TEL AVIV
		STATE:			L3
		ZIP:			64739
		BUSINESS PHONE:		972-3-6845535

	MAIL ADDRESS:	
		STREET 1:		C/O SPHERA FUNDS MANAGEMENT LTD.
		STREET 2:		21 HA'ARBA'AH STREET
		CITY:			TEL AVIV
		STATE:			L3
		ZIP:			64739

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Werewolf Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001785530
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				823523180
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1030 MASSACHUSETTS AVENUE
		STREET 2:		SUITE 210
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138
		BUSINESS PHONE:		617-952-0555

	MAIL ADDRESS:	
		STREET 1:		1030 MASSACHUSETTS AVENUE
		STREET 2:		SUITE 210
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02138
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
Document 1 - file: ownership.html

Document 1 - RAW XML: ownership.xml

</DOCUMENT>
</SEC-DOCUMENT>