Alkermes plc. — Director's Dealing 2015

Sep 15, 2015

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2015-09-11

Reporting Person: Pugh Gordon G (SVP, COO & CRO, Alkermes, Inc.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2015-09-11	Ordinary Shares	M	5523	$18.105	Acquired	19633	Direct
2015-09-11	Ordinary Shares	F	1409	$70.95	Disposed	18224	Direct
2015-09-11	Ordinary Shares	G	1080	—	Disposed	29557	Indirect
2015-09-15	Ordinary Shares	G	18224	—	Disposed	0	Direct
2015-09-15	Ordinary Shares	G	18224	—	Acquired	47781	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2015-09-11	Employee Stock Option (Right to Buy)	$18.105	M	5523	Disposed	2021-05-20	Ordinary Shares (5523)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares	9190	Indirect
Ordinary Shares	10900	Indirect

Footnotes

F1: Shares held by KAS Grantor Retained Annuity Trust dated December 16, 2014 (the "GRAT"). The Reporting Person's spouse is a trustee and beneficiary of the GRAT.

F2: These options are fully vested in accordance with their terms.