Alkermes plc. — Director's Dealing 2017

Mar 2, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2017-03-01

Reporting Person: Cooke Shane (President, Alkermes plc)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-03-01	Ordinary Shares	M	7000	—	Acquired	73068	Direct
2017-03-01	Ordinary Shares	F	3640	$59.71	Disposed	69428	Direct
2017-03-02	Ordinary Shares	M	20000	$14.60	Acquired	89428	Direct
2017-03-02	Ordinary Shares	S	20000	$60.00	Disposed	69428	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-03-01	Restricted Stock Unit Award	$0	M	7000	Disposed		Ordinary Shares (7000)	Direct
2017-03-02	Employee Stock Option (Right to Buy)	$14.60	M	20000	Disposed	2021-10-05	Ordinary Shares (20000)	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: Shares subject to the restricted stock unit award vest in equal annual installments over a four year period, commencing on 3/1/2017.

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