Alkermes plc. — Director's Dealing 2014

Sep 2, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2014-09-02

Reporting Person: MITCHELL PAUL J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-09-02	Ordinary Shares	M	1000	$11.84	Acquired	9000	Direct
2014-09-02	Ordinary Shares	S	1000	$45.12	Disposed	8000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-09-02	Non Qualified Stock Option (Right to Buy)	$11.84	M	1000	Disposed	2014-09-23	Ordinary Shares (1000)	Direct

Footnotes

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

F2: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3: These options are fully vested in accordance with their terms.