Alkermes plc. — Director's Dealing 2018

Feb 28, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2018-02-26

Reporting Person: Cooke Shane (President, Alkermes plc)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-02-26	Ordinary Shares	M	4425	—	Acquired	81293	Direct
2018-02-26	Ordinary Shares	F	2301	$58.12	Disposed	78992	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-02-26	Restricted Stock Unit Award	$0	M	4425	Disposed		Ordinary Shares (4425)	Direct

Footnotes

F1: Shares subject to the restricted stock unit award vest in equal annual installments over a four year period, commencing on 2/26/2016.