<SEC-DOCUMENT>0001395064-21-000203-index.html : 20211015
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<ACCEPTANCE-DATETIME>20211015184019
ACCESSION NUMBER:		0001395064-21-000203
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20211012
FILED AS OF DATE:		20211015
DATE AS OF CHANGE:		20211015

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ARIAD PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0000884731
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40869
		FILM NUMBER:		211326997

	BUSINESS ADDRESS:	
		STREET 1:		125 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		6174940400

	MAIL ADDRESS:	
		STREET 1:		125 BINNEY STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			TAKEDA PHARMACEUTICAL CO LTD
		CENTRAL INDEX KEY:			0001395064
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40869
		FILM NUMBER:		211326998

	BUSINESS ADDRESS:	
		STREET 1:		1-1, NIHONBASHI-HONCHO 2-CHOME, CHUO-KU
		CITY:			TOKYO
		STATE:			M0
		ZIP:			103-8668
		BUSINESS PHONE:		81332782111

	MAIL ADDRESS:	
		STREET 1:		1-1, NIHONBASHI-HONCHO 2-CHOME, CHUO-KU
		CITY:			TOKYO
		STATE:			M0
		ZIP:			103-8668

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Theseus Pharmaceuticals, Inc.
		CENTRAL INDEX KEY:			0001745020
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				830712806
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		245 MAIN STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
		BUSINESS PHONE:		(857) 400-9491

	MAIL ADDRESS:	
		STREET 1:		245 MAIN STREET
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02142
</SEC-HEADER>
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