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: LANDINE MICHAEL J (SVP, Corp Dev., Alkermes, Inc.)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-02-21	Ordinary Shares	M	5825	—	Acquired	197322	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-20	Employee Stock Option (Right to Buy)	$20.43	A	89545	Acquired	2030-02-20	Ordinary Shares (89545)	Direct
2020-02-20	Restricted Stock Unit Award	$0	A	21415	Acquired		Ordinary Shares (21415)	Direct
2020-02-21	Restricted Stock Unit Award	$0	M	5825	Disposed		Ordinary Shares (5825)	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 restricted stock unit award vest in equal annual installments over a four year period, commencing on 2/21/2020.