Alkermes plc. — Director's Dealing 2015

Jan 5, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2015-01-02

Reporting Person: BREYER ROBERT A (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-01-02	Ordinary Shares	M	5000	$14.92	Acquired	58156	Direct
2015-01-02	Ordinary Shares	S	5000	$58.57	Disposed	53156	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-01-02	Non Qualified Stock Option (Right to Buy)	$14.92	M	5000	Disposed	2020-10-05	Ordinary Shares (5000)	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.