Alkermes plc. — Director's Dealing 2021

Feb 24, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2021-02-20

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-02-20	Ordinary Shares	M	7036	—	Acquired	71805	Direct
2021-02-20	Ordinary Shares	F	2061	$19.58	Disposed	69744	Direct
2021-02-21	Ordinary Shares	M	6875	—	Acquired	76619	Direct
2021-02-21	Ordinary Shares	F	2022	$19.58	Disposed	74597	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-02-20	Restricted Stock Unit Award	$0	M	7036	Disposed		Ordinary Shares (7036)	Direct
2021-02-21	Restricted Stock Unit Award	$0	M	6875	Disposed		Ordinary Shares (6875)	Direct

Footnotes

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

F2: Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/21/2020.