<SEC-DOCUMENT>0001274173-22-000069-index.html : 20220211
<SEC-HEADER>0001274173-22-000069.hdr.sgml : 20220211
<ACCEPTANCE-DATETIME>20220211133446
ACCESSION NUMBER:		0001274173-22-000069
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20220211
DATE AS OF CHANGE:		20220211

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Cogent Biosciences, Inc.
		CENTRAL INDEX KEY:			0001622229
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				465308248
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-90431
		FILM NUMBER:		22619039

	BUSINESS ADDRESS:	
		STREET 1:		200 CAMBRIDGE PARK DRIVE
		STREET 2:		SUITE 3100
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02140
		BUSINESS PHONE:		617-945-5576

	MAIL ADDRESS:	
		STREET 1:		200 CAMBRIDGE PARK DRIVE
		STREET 2:		SUITE 3100
		CITY:			CAMBRIDGE
		STATE:			MA
		ZIP:			02140

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Unum Therapeutics Inc.
		DATE OF NAME CHANGE:	20180402

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Unum Therapeutics, Inc.
		DATE OF NAME CHANGE:	20141014

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			JANUS HENDERSON GROUP PLC
		CENTRAL INDEX KEY:			0001274173
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		201 BISHOPSGATE
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC2M 3AE
		BUSINESS PHONE:		442078181818

	MAIL ADDRESS:	
		STREET 1:		201 BISHOPSGATE
		CITY:			LONDON
		STATE:			X0
		ZIP:			EC2M 3AE

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HENDERSON GROUP PLC
		DATE OF NAME CHANGE:	20050511

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HHG PLC
		DATE OF NAME CHANGE:	20031223
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>cogt2102022.txt
<DESCRIPTION>JANUS HENDERSON GROUP PLC OWNS >5%
<TEXT>
Document 1 - file: cogt2102022.txt

</DOCUMENT>
</SEC-DOCUMENT>