Alkermes plc. — Director's Dealing 2014

Sep 19, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2014-09-17

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-09-17	Ordinary Shares	M	1977	$11.74	Acquired	34504	Direct
2014-09-17	Ordinary Shares	M	12923	$16.55	Acquired	47427	Direct
2014-09-17	Ordinary Shares	S	14900	$45.0367	Disposed	32527	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2014-09-17	Employee Stock Option (Right to Buy)	$11.74	M	1977	Disposed	2020-05-17	Ordinary Shares (1977)	Direct
2014-09-17	Employee Stock Option (Right to Buy)	$16.55	M	12923	Disposed	2022-05-21	Ordinary Shares (12923)	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 $45.00 to $45.21. 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.

F5: Shares subject to the stock option award vest in four equal annual installments commencing on 5/21/13.