Alkermes plc. — Director's Dealing 2015

Oct 30, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2015-10-29

Reporting Person: Brown Iain Michael (VP, Finance & CAO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-10-29	Ordinary Shares	M	10822	$18.60	Acquired	49511	Direct
2015-10-29	Ordinary Shares	S	10822	$69.99	Disposed	38689	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-10-29	Employee Stock Option (Right to Buy)	$18.60	M	10822	Disposed	2015-12-09	Ordinary Shares (10822)	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.