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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2011-09-16	Common Stock	A	24027	—	Acquired	24027	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2011-09-16	Employee Stock Option (Right to Buy)	$8.55	A	50000	Acquired	2019-05-26	Common Stock (50000)	Direct
2011-09-16	Employee Stock Option (Right to Buy)	$9.21	A	30000	Acquired	2019-11-18	Common Stock (30000)	Direct
2011-09-16	Employee Stock Option (Right to Buy)	$11.74	A	91200	Acquired	2020-05-17	Common Stock (91200)	Direct
2011-09-16	Employee Stock Option (Right to Buy)	$12.29	A	45000	Acquired	2018-05-27	Common Stock (45000)	Direct
2011-09-16	Employee Stock Option (Right to Buy)	$14.13	A	15000	Acquired	2017-11-05	Common Stock (15000)	Direct
2011-09-16	Employee Stock Option (Right to Buy)	$18.105	A	100000	Acquired	2021-05-20	Common Stock (100000)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$9.97	A	3850	Acquired	2013-04-25	Common Stock (3850)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$12.16	A	1	Acquired	2013-12-10	Common Stock (1)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$12.30	A	7500	Acquired	2014-07-12	Common Stock (7500)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$14.38	A	177	Acquired	2016-12-12	Common Stock (177)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$14.57	A	4228	Acquired	2013-10-17	Common Stock (4228)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$14.90	A	520	Acquired	2014-12-17	Common Stock (520)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$15.95	A	6269	Acquired	2017-06-01	Common Stock (6269)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$18.60	A	5376	Acquired	2015-12-09	Common Stock (5376)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$20.79	A	4687	Acquired	2016-05-02	Common Stock (4687)	Direct
2011-09-16	Incentive Stock Option (Right to Buy)	$25.96	A	15408	Acquired	2012-01-07	Common Stock (15408)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$9.97	A	11550	Acquired	2013-04-25	Common Stock (11550)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$12.16	A	54599	Acquired	2013-12-10	Common Stock (54599)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$12.30	A	22500	Acquired	2014-07-12	Common Stock (22500)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$14.38	A	19823	Acquired	2016-12-12	Common Stock (19823)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$14.57	A	25772	Acquired	2013-10-17	Common Stock (25772)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$14.90	A	69480	Acquired	2014-12-17	Common Stock (69480)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$15.95	A	23731	Acquired	2017-06-01	Common Stock (23731)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$18.60	A	32124	Acquired	2015-12-09	Common Stock (32124)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$20.79	A	14063	Acquired	2016-05-02	Common Stock (14063)	Direct
2011-09-16	Non Qualified Stock Option (Right to Buy)	$25.96	A	144592	Acquired	2012-01-07	Common Stock (144592)	Direct
2011-09-16	Restricted Stock Award	$0	A	11250	Acquired		Common Stock (11250)	Direct
2011-09-16	Restricted Stock Award	$0	A	4250	Acquired		Common Stock (4250)	Direct
2011-09-16	Restricted Stock Unit Award	$0	A	9825	Acquired		Common Stock (9825)	Direct
2011-09-16	Restricted Stock Unit Award	$0	A	15000	Acquired		Common Stock (15000)	Direct

Footnotes

F1: 17,500 vested as of 9/16/11, remainder vests in 2 equal annual installments beginning on 5/26/12.

F2: 25% vested as of 9/16/11, remainder vests in 3 equal annual installments beginning on 11/18/11.

F3: 25% vested as of 9/16/11, remainder vests in 3 equal annual installments beginning on 5/17/12.

F4: 75% vested as of 9/16/11, remainder vests on 5/27/12.

F5: 75% vested as of 9/16/11, remainder vests on 11/5/11.

F6: Vests in 4 equal annual installments beginning on 5/20/12.

F7: These options are fully vested in accordance with their terms.

F8: 50% vested as of 9/16/11, remainder vests in 2 equal annual installments beginning on 5/26/12.