Alkermes plc. — Director's Dealing 2017

Mar 27, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2017-03-23

Reporting Person: Cooke Shane (President, Alkermes plc)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-03-23	Ordinary Shares	M	3000	$14.60	Acquired	74948	Direct
2017-03-23	Ordinary Shares	M	3030	$16.55	Acquired	77978	Direct
2017-03-23	Ordinary Shares	S	6030	$60.0093	Disposed	71948	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-03-23	Employee Stock Option (Right to Buy)	$14.60	M	3000	Disposed	2021-10-05	Ordinary Shares (3000)	Direct
2017-03-23	Employee Stock Option (Right to Buy)	$16.55	M	3030	Disposed	2022-05-21	Ordinary Shares (3030)	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 $60.00 to $60.05. 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.