<SEC-DOCUMENT>0001387131-23-007692-index.html : 20230621
<SEC-HEADER>0001387131-23-007692.hdr.sgml : 20230621
<ACCEPTANCE-DATETIME>20230621162202
ACCESSION NUMBER:		0001387131-23-007692
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		5
FILED AS OF DATE:		20230621
DATE AS OF CHANGE:		20230621

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:		DEFA14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35299
		FILM NUMBER:		231030154

	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>DEFA14A
<SEQUENCE>1
<FILENAME>alkermes-defa14a_062123.htm
<DESCRIPTION>ADDITIONAL DEFINITIVE MATERIAL
<TEXT>
Document 1 - file: alkermes-defa14a_062123.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>alk-defa14a_img001.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: alk-defa14a_img001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>alk-defa14a_img002.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: alk-defa14a_img002.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>alk-defa14a_img003.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: alk-defa14a_img003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>alk-defa14a_img004.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: alk-defa14a_img004.jpg

</DOCUMENT>
</SEC-DOCUMENT>