<SEC-DOCUMENT>0001564590-19-010920-index.html : 20190405
<SEC-HEADER>0001564590-19-010920.hdr.sgml : 20190405
<ACCEPTANCE-DATETIME>20190405161030
ACCESSION NUMBER:		0001564590-19-010920
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		8
CONFORMED PERIOD OF REPORT:	20190522
FILED AS OF DATE:		20190405
DATE AS OF CHANGE:		20190405
EFFECTIVENESS DATE:		20190405

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Alkermes plc.
		CENTRAL INDEX KEY:			0001520262
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				981007018
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35299
		FILM NUMBER:		19735243

	BUSINESS ADDRESS:	
		STREET 1:		CONNAUGHT HOUSE
		STREET 2:		1 BURLINGTON ROAD
		CITY:			DUBLIN 4
		STATE:			L2
		ZIP:			00000
		BUSINESS PHONE:		00-353-1-772-8000

	MAIL ADDRESS:	
		STREET 1:		CONNAUGHT HOUSE
		STREET 2:		1 BURLINGTON ROAD
		CITY:			DUBLIN 4
		STATE:			L2
		ZIP:			00000

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ANTLER SCIENCE TWO PLC
		DATE OF NAME CHANGE:	20110804

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Antler Science Two Ltd
		DATE OF NAME CHANGE:	20110509
</SEC-HEADER>
<DOCUMENT>
<TYPE>DEF 14A
<SEQUENCE>1
<FILENAME>alks-def14a_20190522.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: alks-def14a_20190522.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>gaild53xht2p000006.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: gaild53xht2p000006.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>gaild53xht2p000003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: gaild53xht2p000003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>gaild53xht2p000002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: gaild53xht2p000002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>gaild53xht2p000004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: gaild53xht2p000004.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>gaild53xht2p000005.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: gaild53xht2p000005.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>gaild53xht2p000001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: gaild53xht2p000001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>gaild53xht2p000007.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: gaild53xht2p000007.jpg

</DOCUMENT>
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