<SEC-DOCUMENT>0001193125-18-084816-index.html : 20180316
<SEC-HEADER>0001193125-18-084816.hdr.sgml : 20180316
<ACCEPTANCE-DATETIME>20180316074202
ACCESSION NUMBER:		0001193125-18-084816
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		7
FILED AS OF DATE:		20180316
DATE AS OF CHANGE:		20180316
EFFECTIVENESS DATE:		20180316

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Lantheus Holdings, Inc.
		CENTRAL INDEX KEY:			0001521036
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				352318913
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36569
		FILM NUMBER:		18694203

	BUSINESS ADDRESS:	
		STREET 1:		331 TREBLE COVE ROAD
		CITY:			NORTH BILLERICA
		STATE:			MA
		ZIP:			01862
		BUSINESS PHONE:		978 671-8001

	MAIL ADDRESS:	
		STREET 1:		331 TREBLE COVE ROAD
		CITY:			NORTH BILLERICA
		STATE:			MA
		ZIP:			01862

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Lantheus MI Holdings, Inc.
		DATE OF NAME CHANGE:	20110517
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEFA14A
<SEQUENCE>1
<FILENAME>d516585ddefa14a.htm
<DESCRIPTION>DEFINITIVE ADDITIONAL MATERIALS
<TEXT>
Document 1 - file: d516585ddefa14a.htm

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<SEQUENCE>2
<FILENAME>g516585g05e15.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: g516585g05e15.jpg

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<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>g516585g16q56.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: g516585g16q56.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>g516585g49a18.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: g516585g49a18.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>g516585g62d05.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: g516585g62d05.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>g516585g76c99.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: g516585g76c99.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>g516585g87n84.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: g516585g87n84.jpg

</DOCUMENT>
</SEC-DOCUMENT>