Alkermes plc. — Director's Dealing 2014

Dec 11, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2014-12-09

Reporting Person: LANDINE MICHAEL J (SVP, Corp Dev., Alkermes, Inc.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-12-09	Ordinary Shares	M	16861	$14.90	Acquired	147382	Direct
2014-12-09	Ordinary Shares	M	1139	$14.90	Acquired	148521	Direct
2014-12-09	Ordinary Shares	S	18000	$56.8227	Disposed	130521	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-12-09	Non Qualified Stock Option (Right to Buy)	$14.90	M	16861	Disposed	2014-12-17	Ordinary Shares (16861)	Direct
2014-12-09	Incentive Stock Option (Right to Buy)	$14.90	M	1139	Disposed	2014-12-17	Ordinary Shares (1139)	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: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $56.41 to $57.40. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

F4: These options are fully vested in accordance with their terms.