<SEC-DOCUMENT>0000899243-17-008308-index.html : 20170321
<SEC-HEADER>0000899243-17-008308.hdr.sgml : 20170321
<ACCEPTANCE-DATETIME>20170321170133
ACCESSION NUMBER:		0000899243-17-008308
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170317
FILED AS OF DATE:		20170321
DATE AS OF CHANGE:		20170321

ISSUER:		

	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

	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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ACP-Lantern Co-Invest, LLC
		CENTRAL INDEX KEY:			0001613694
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36569
		FILM NUMBER:		17704782

	BUSINESS ADDRESS:	
		STREET 1:		65 E. 55 ST.
		STREET 2:		18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-593-6958

	MAIL ADDRESS:	
		STREET 1:		65 E. 55 ST.
		STREET 2:		18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Avista Capital Partners (Offshore), L.P.
		CENTRAL INDEX KEY:			0001374540

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36569
		FILM NUMBER:		17704783

	BUSINESS ADDRESS:	
		STREET 1:		65 E.55TH STREET, 18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212 593-6958

	MAIL ADDRESS:	
		STREET 1:		65 E.55TH STREET, 18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Avista Capital Partners, L.P.
		CENTRAL INDEX KEY:			0001374541

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36569
		FILM NUMBER:		17704784

	BUSINESS ADDRESS:	
		STREET 1:		65 E.55TH STREET, 18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212 593-6958

	MAIL ADDRESS:	
		STREET 1:		65 E.55TH STREET, 18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Avista Capital Partners GP, LLC
		CENTRAL INDEX KEY:			0001374781
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36569
		FILM NUMBER:		17704785

	BUSINESS ADDRESS:	
		STREET 1:		65 EAST 55TH STREET
		STREET 2:		18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212 593-6900

	MAIL ADDRESS:	
		STREET 1:		65 EAST 55TH STREET
		STREET 2:		18TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
Document 1 - file: doc4.html

Document 1 - RAW XML: doc4.xml

</DOCUMENT>
</SEC-DOCUMENT>