<SEC-DOCUMENT>0000935836-22-000621-index.html : 20221123
<SEC-HEADER>0000935836-22-000621.hdr.sgml : 20221123
<ACCEPTANCE-DATETIME>20221123122849
ACCESSION NUMBER:		0000935836-22-000621
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20221123
DATE AS OF CHANGE:		20221123

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Centessa Pharmaceuticals plc
		CENTRAL INDEX KEY:			0001847903
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			X0
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-92588
		FILM NUMBER:		221414814

	BUSINESS ADDRESS:	
		STREET 1:		3RD FLOOR
		STREET 2:		1 ASHLEY ROAD
		CITY:			ALTRINCHAM, CHESHIRE
		STATE:			X0
		ZIP:			WA14 2DT
		BUSINESS PHONE:		44 7391 789784

	MAIL ADDRESS:	
		STREET 1:		3RD FLOOR
		STREET 2:		1 ASHLEY ROAD
		CITY:			ALTRINCHAM, CHESHIRE
		STATE:			X0
		ZIP:			WA14 2DT

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Centessa Pharmaceuticals Ltd
		DATE OF NAME CHANGE:	20210224

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			EcoR1 Capital, LLC
		CENTRAL INDEX KEY:			0001587114
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		357 TEHAMA STREET #3
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94103
		BUSINESS PHONE:		415-448-6534

	MAIL ADDRESS:	
		STREET 1:		357 TEHAMA STREET #3
		CITY:			SAN FRANCISCO
		STATE:			CA
		ZIP:			94103
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>centessapharm13g.htm
<TEXT>
Document 1 - file: centessapharm13g.htm

</DOCUMENT>
</SEC-DOCUMENT>