Alkermes plc. — Director's Dealing 2014

May 23, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2014-05-23

Reporting Person: Peterson Rebecca (SVP, Corporate Communications)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-05-23	Ordinary Shares	S	1321	$45.08	Disposed	0	Direct

Footnotes

F1: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.