Alkermes plc. — Director's Dealing 2016

Jul 28, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2016-07-26

Reporting Person: Ehrich Elliot (EVP, R&D & CMO, Alkermes, Inc.)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-07-26	Ordinary Shares	M	800	$16.55	Acquired	46111	Direct
2016-07-26	Ordinary Shares	S	800	$51.8191	Disposed	45311	Direct
2016-07-27	Ordinary Shares	M	34399	$16.55	Acquired	79710	Direct
2016-07-27	Ordinary Shares	S	34399	$51.9514	Disposed	45311	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-07-26	Employee Stock Option (Right to Buy)	$16.55	M	800	Disposed	2022-05-21	Ordinary Shares (800)	Direct
2016-07-27	Employee Stock Option (Right to Buy)	$16.55	M	34399	Disposed	2022-05-21	Ordinary Shares (34399)	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 $51.81 to $51.85. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $51.80 to $52.25. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

F5: These options are fully vested in accordance with their terms.