Alkermes plc. - Director's Dealing 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2020-03-01

Reporting Person: Gaffin David Joseph (SVP, CLO, Alkermes, Inc.)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-03-01	Ordinary Shares	M	2250	—	Acquired	59596	Direct
2020-03-01	Ordinary Shares	F	662	$20.84	Disposed	58934	Direct
2020-03-02	Ordinary Shares	M	3000	$11.74	Acquired	61934	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-03-01	Restricted Stock Unit Award	$0	M	2250	Disposed		Ordinary Shares (2250)	Direct
2020-03-02	Employee Stock Option (Right to Buy)	$11.74	M	3000	Disposed	2020-05-17	Ordinary Shares (3000)	Direct

F1: Shares subject to the restricted stock unit award vest in equal annual installments over a four year period, commencing on 3/1/2017.

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