Alkermes plc. — Director's Dealing 2011

Sep 20, 2011

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2011-09-16

Reporting Person: DIXON WENDY L (Director)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-09-16	Non Qualified Stock Option (Right to Buy)	$12.62	A	15000	Acquired	2021-01-13	Common Stock (15000)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$12.62	A	20000	Acquired	2021-01-13	Common Stock (20000)	Direct

Footnotes

F1: These options are fully vested in accordance with their terms.

F2: Received in exchange for, and having substantially the same terms as, stock options of Alkermes, Inc. common stock in connection with the merger of Alkermes, Inc. and the global drug delivery technologies business of Elan (the "Merger").