Alkermes plc. — Director's Dealing 2020

Feb 18, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2020-02-16

Reporting Person: FRATES JAMES M (SVP, Alks Inc; CFO ALKS)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-02-16	Ordinary Shares	M	3375	—	Acquired	61631	Direct
2020-02-16	Ordinary Shares	F	1172	$17.77	Disposed	60459	Direct
2020-02-17	Ordinary Shares	M	3000	—	Acquired	63459	Direct
2020-02-17	Ordinary Shares	F	904	$17.77	Disposed	62555	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-02-16	Restricted Stock Unit Award	$0	M	3375	Disposed		Ordinary Shares (3375)	Direct
2020-02-17	Restricted Stock Unit Award	$0	M	3000	Disposed		Ordinary Shares (3000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares	1669	Indirect
Ordinary Shares	150000	Indirect
Ordinary Shares	4000	Indirect

Footnotes

F1: Shares held by James M. Frates 2018 Grantor Retained Annuity Trust No. 2 dated May 25, 2018 (the "2018 GRAT No. 2"). The Reporting Person is a trustee and beneficiary of the 2018 GRAT No. 2 and may be deemed to hold voting and dispositive
power with regard to the reported shares held by the 2018 GRAT No. 2.

F2: Shares held by the 2019 GRAT No. 1. The Reporting Person is a trustee and beneficiary of the 2019 GRAT No. 1 and may be deemed to hold voting and dispositive power with regard to the reported shares held by the 2019 GRAT No. 1.

F3: Shares subject to the restricted stock unit award vest in equal annual installments over a four year period, commencing on 2/16/19.

F4: Shares subject to the restricted stock unit award vest in equal annual installments over a four year period, commencing on 2/17/18.