<SEC-DOCUMENT>0001387131-23-007431-index.html : 20230608
<SEC-HEADER>0001387131-23-007431.hdr.sgml : 20230608
<ACCEPTANCE-DATETIME>20230608171437
ACCESSION NUMBER:		0001387131-23-007431
CONFORMED SUBMISSION TYPE:	DEFA14A
PUBLIC DOCUMENT COUNT:		20
FILED AS OF DATE:		20230608
DATE AS OF CHANGE:		20230608

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:		231002921

	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_060823.htm
<DESCRIPTION>ADDITIONAL DEFINITIVE MATERIAL
<TEXT>
Document 1 - file: alkermes-defa14a_060823.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>alks-01.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 2 - file: alks-01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>alks-02.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 3 - file: alks-02.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>alks-03.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 4 - file: alks-03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>alks-04.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 5 - file: alks-04.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>alks-05.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 6 - file: alks-05.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>alks-06.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 7 - file: alks-06.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>alks-07.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 8 - file: alks-07.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>alks-08.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 9 - file: alks-08.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>alks-09.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 10 - file: alks-09.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>alks-10.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 11 - file: alks-10.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>alks-11.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 12 - file: alks-11.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>alks-12.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 13 - file: alks-12.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>alks-13.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 14 - file: alks-13.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>alks-14.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 15 - file: alks-14.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>16
<FILENAME>alks-15.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 16 - file: alks-15.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>17
<FILENAME>alks-16.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 17 - file: alks-16.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>18
<FILENAME>alks-17.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 18 - file: alks-17.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>19
<FILENAME>alks-18.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 19 - file: alks-18.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>20
<FILENAME>alks-19.jpg
<DESCRIPTION>GRAPHIC
<TEXT>
Document 20 - file: alks-19.jpg

</DOCUMENT>
</SEC-DOCUMENT>