Alkermes plc. — Director's Dealing 2023

Feb 25, 2023

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2023-02-22

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2023-02-22	Ordinary Shares	M	5544	—	Acquired	252904	Direct
2023-02-22	Ordinary Shares	F	2462	$27.77	Disposed	250442	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2023-02-22	Restricted Stock Unit Award	$	M	5544	Disposed		Ordinary Shares (5544)	Direct
2023-02-23	Employee Stock Option (Right to Buy)	$27.36	A	63962	Acquired	2033-02-23	Ordinary Shares (63962)	Direct
2023-02-23	Restricted Stock Unit Award	$	A	15991	Acquired		Ordinary Shares (15991)	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one ordinary share.

F2: Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/22/2022.

F3: Shares underlying the stock option vest and become exercisable in four equal annual installments commencing on 2/23/2024.

F4: Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/23/2024.