Alkermes plc. — Director's Dealing 2014

Jan 17, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2014-01-16

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-01-16	Ordinary Shares	M	30000	$18.105	Acquired	78301	Direct
2014-01-16	Ordinary Shares	S	30000	$47.1591	Disposed	48301	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-01-16	Employee Stock Option (Right to Buy)	$18.105	M	30000	Disposed	2021-05-20	Ordinary Shares (30000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares	5000	Indirect
Ordinary Shares	15000	Indirect

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: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $46.76 to $47.585. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

F4: Vests in 4 equal annual installments beginning on 5/20/12.