<SEC-DOCUMENT>0001127602-24-004738.txt : 20240213
<SEC-HEADER>0001127602-24-004738.hdr.sgml : 20240213
<ACCEPTANCE-DATETIME>20240213170727
ACCESSION NUMBER:		0001127602-24-004738
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20240210
FILED AS OF DATE:		20240213
DATE AS OF CHANGE:		20240213

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Daglio David Angelo Jr.
		CENTRAL INDEX KEY:			0001837109
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35299
		FILM NUMBER:		24628701

	MAIL ADDRESS:	
		STREET 1:		ALKERMES
		STREET 2:		852 WINTER STREET
		CITY:			WALTHAM
		STATE:			MA
		ZIP:			02451

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Alkermes plc.
		CENTRAL INDEX KEY:			0001520262
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		IRS NUMBER:				981007018
		FISCAL YEAR END:			1231

	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>
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    <footnotes>
        <footnote id="F1">Each restricted stock unit represents a contingent right to receive one ordinary share.</footnote>
        <footnote id="F2">Shares are held by The David A Daglio Jr Trust U/A 09/21/17 (the &quot;Daglio Trust&quot;), of which the reporting person is both sole trustee and sole beneficiary.</footnote>
        <footnote id="F3">Represents an equity award granted prior to the separation of the issuer's oncology business into Mural Oncology plc (the &quot;Separation&quot;), as adjusted on November 17, 2023 in connection with the Separation (in order to preserve the value associated with the original award) based on the equity adjustment terms set forth in the Employee Matters Agreement filed by the issuer as Exhibit 10.2 to its Current Report on Form 8-K filed with the U.S. Securities and Exchange Commission on November 15, 2023. The exercise price (if any) of the adjusted award is shown in Boxes 2 and 8, the number of shares subject to the adjusted award is shown in Box 9 and the number of shares added to the award pursuant to the adjustment is shown in Box 5.</footnote>
        <footnote id="F4">These options are fully vested in accordance with their terms.</footnote>
        <footnote id="F5">This award is fully vested in accordance with its terms.</footnote>
        <footnote id="F6">Shares subject to the stock option award vest and become exercisable in full on 6/29/2024.</footnote>
        <footnote id="F7">Shares subject to the restricted stock unit award vest in full on 6/29/2024.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Shantale Greenson, attorney-in-fact for David Angelo Daglio, Jr.</signatureName>
        <signatureDate>2024-02-13</signatureDate>
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