Alkermes plc. — Director's Dealing 2016

Mar 4, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2016-03-03

Reporting Person: BIBERSTEIN KATHRYN L (EVP/CLO/CCO Alks Inc; Sec ALKS)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-03-03	Ordinary Shares	M	4218	$20.79	Acquired	8130	Direct
2016-03-03	Ordinary Shares	M	855	$14.38	Acquired	8985	Direct
2016-03-03	Ordinary Shares	M	5000	$15.95	Acquired	13985	Direct
2016-03-03	Ordinary Shares	M	1434	$14.13	Acquired	15419	Direct
2016-03-03	Ordinary Shares	M	3500	—	Acquired	18919	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-03-03	Incentive Stock Option (Right to Buy)	$20.79	M	4218	Disposed	2016-05-02	Ordinary Shares (4218)	Direct
2016-03-03	Incentive Stock Option (Right to Buy)	$14.38	M	855	Disposed	2016-12-12	Ordinary Shares (855)	Direct
2016-03-03	Incentive Stock Option (Right to Buy)	$15.95	M	5000	Disposed	2017-06-01	Ordinary Shares (5000)	Direct
2016-03-03	Employee Stock Option (Right to Buy)	$14.13	M	1434	Disposed	2017-11-05	Ordinary Shares (1434)	Direct
2016-03-03	Restricted Stock Unit Award	$0	M	3500	Disposed		Ordinary Shares (3500)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares	94000	Indirect

Footnotes

F1: Shares held by the Kathryn L. Biberstein 2015 Annuity Trust dated December 11, 2015 (the "2015 GRAT"). The Reporting Person is a trustee and beneficiary of the 2015 GRAT and may be deemed to hold voting and dispositive power with regard to the reported shares held by the 2015 GRAT.

F2: These options are fully vested in accordance with their terms.

F3: Shares subject to the restricted stock unit award vest in equal annual installments over a four year period, commencing 3/3/2015.