<SEC-DOCUMENT>0001274173-24-000018-index.html : 20240212
<SEC-HEADER>0001274173-24-000018.hdr.sgml : 20240212
<ACCEPTANCE-DATETIME>20240212125607
ACCESSION NUMBER:		0001274173-24-000018
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20240212
DATE AS OF CHANGE:		20240212

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mirion Technologies, Inc.
		CENTRAL INDEX KEY:			0001809987
		STANDARD INDUSTRIAL CLASSIFICATION:	MEASURING & CONTROLLING DEVICES, NEC [3829]
		ORGANIZATION NAME:           	08 Industrial Applications and Services
		IRS NUMBER:				830974996
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-91556
		FILM NUMBER:		24618739

	BUSINESS ADDRESS:	
		STREET 1:		1218 MENLO DRIVE
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30318
		BUSINESS PHONE:		(770) 432-2744

	MAIL ADDRESS:	
		STREET 1:		1218 MENLO DRIVE
		CITY:			ATLANTA
		STATE:			GA
		ZIP:			30318

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GS Acquisition Holdings Corp II
		DATE OF NAME CHANGE:	20200417

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>mirion123123.txt
<DESCRIPTION>JHG PLC OWNS <5%
<TEXT>
Document 1 - file: mirion123123.txt

</DOCUMENT>
</SEC-DOCUMENT>