Alkermes plc. — Director's Dealing 2021

Jun 9, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2021-06-07

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-06-07	Ordinary Shares	M	13500	$16.55	Acquired	88097	Direct
2021-06-07	Ordinary Shares	S	13500	$24.00	Disposed	74597	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-06-07	Employee Stock Option (Right to Buy)	$16.55	M	13500	Disposed	2022-05-21	Ordinary Shares (13500)	Direct

Footnotes

F1: This option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F2: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person.

F3: These options are fully vested in accordance with their terms.