Alkermes plc. — Director's Dealing 2021

Feb 19, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2021-02-16

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-16	Ordinary Shares	M	3375	—	Acquired	64309	Direct
2021-02-16	Ordinary Shares	F	1172	$19.79	Disposed	63137	Direct
2021-02-17	Ordinary Shares	M	2500	—	Acquired	65637	Direct
2021-02-17	Ordinary Shares	F	868	$19.97	Disposed	64769	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-16	Restricted Stock Unit Award	$0	M	3375	Disposed		Ordinary Shares (3375)	Direct
2021-02-17	Restricted Stock Unit Award	$0	M	2500	Disposed		Ordinary Shares (2500)	Direct

Footnotes

F1: Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/16/2019.

F2: Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/17/2018.