<SEC-DOCUMENT>0001274173-24-000047-index.html : 20240213
<SEC-HEADER>0001274173-24-000047.hdr.sgml : 20240213
<ACCEPTANCE-DATETIME>20240213145954
ACCESSION NUMBER:		0001274173-24-000047
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240213
DATE AS OF CHANGE:		20240213

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CONSTELLIUM SE
		CENTRAL INDEX KEY:			0001563411
		STANDARD INDUSTRIAL CLASSIFICATION:	SECONDARY SMELTING & REFINING OF NONFERROUS METALS [3341]
		ORGANIZATION NAME:           	04 Manufacturing
		IRS NUMBER:				000000000
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-87483
		FILM NUMBER:		24624999

	BUSINESS ADDRESS:	
		STREET 1:		WASHINGTON PLAZA
		STREET 2:		40-44 RUE WASHINGTON
		CITY:			PARIS
		STATE:			I0
		ZIP:			75008
		BUSINESS PHONE:		33-1-73-01-46-51

	MAIL ADDRESS:	
		STREET 1:		WASHINGTON PLAZA
		STREET 2:		40-44 RUE WASHINGTON
		CITY:			PARIS
		STATE:			I0
		ZIP:			75008

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Constellium SE
		DATE OF NAME CHANGE:	20190628

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Constellium N.V.
		DATE OF NAME CHANGE:	20130521

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Constellium Holdco B.V.
		DATE OF NAME CHANGE:	20121130

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			JANUS HENDERSON GROUP PLC
		CENTRAL INDEX KEY:			0001274173
		STANDARD INDUSTRIAL CLASSIFICATION:	INVESTMENT ADVICE [6282]
		ORGANIZATION NAME:           	02 Finance
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			Y9
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	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/A
<SEQUENCE>1
<FILENAME>constellium123123.txt
<DESCRIPTION>JHG PLC OWNS >5%
<TEXT>
Document 1 - file: constellium123123.txt

</DOCUMENT>
</SEC-DOCUMENT>