Alkermes plc. - Director's Dealing 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2020-02-20

Reporting Person: Hopkinson Craig C. (EVP R&D, Chief Medical Officer)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-02-21	Ordinary Shares	M	6875	—	Acquired	15955	Direct
2020-02-21	Ordinary Shares	F	2004	$20.24	Disposed	13951	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-20	Employee Stock Option (Right to Buy)	$20.43	A	168856	Acquired	2030-02-20	Ordinary Shares (168856)	Direct
2020-02-20	Restricted Stock Unit Award	$0	A	40382	Acquired		Ordinary Shares (40382)	Direct
2020-02-21	Employee Stock Option (Right to Buy)	$32.57	M	6875	Disposed	2029-02-21	Ordinary Shares (6875)	Direct

F1: Shares subject to the stock option award vest in four equal annual installments commencing on 2/20/2021.

F2: Shares subject to the restricted stock unit award vest in equal annual installments over a four year period, commencing on 2/20/2021.

F3: Shares subject to the stock option award vest in four equal annual installments commencing on 2/21/2020.