Alkermes plc. - Director's Dealing 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2025-04-11

Reporting Person: Lurker Nancy (Director)

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-04-11	Ordinary Shares	M	2323	—	Acquired	2323	Direct
2025-04-11	Ordinary Shares	F	558	$27.00	Disposed	1765	Direct
2025-04-11	Ordinary Shares	M	3752	—	Acquired	5517	Direct
2025-04-11	Ordinary Shares	F	901	$27.00	Disposed	4616	Direct

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-04-11	Restricted Stock Unit Award	$	M	2323	Disposed		Ordinary Shares (2323)	Direct
2025-04-11	Restricted Stock Unit Award	$	M	3752	Disposed		Ordinary Shares (3752)	Direct

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

F2: This award is fully vested in accordance with its terms.

F3: Shares subject to the restricted stock unit award vest in three equal annual installments commencing on 4/11/2025.