Alkermes plc. — Director's Dealing 2020

Oct 2, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: Alkermes plc. (ALKS)
CIK: 0001520262
Period of Report: 2020-10-01

Reporting Person: MITCHELL PAUL J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-10-01	Ordinary Shares	M	20000	$14.92	Acquired	27000	Indirect
2020-10-01	Ordinary Shares	S	20000	$16.6131	Disposed	7000	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-10-01	Non Qualified Stock Option (Right to Buy)	$14.92	M	20000	Disposed	2020-10-05	Ordinary Shares (20000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Ordinary Shares	8000	Direct

Footnotes

F1: This option exercise was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 5/6/2019.

F2: The reporting person and his wife are co-trustees of The Paul J. Mitchell Trust and the reporting person is also a beneficiary of The Paul J. Mitchell Trust originally established on November 19, 2014 and amended and restated on September 8, 2017 ("The Paul J. Mitchell Trust").

F3: This sale was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on 5/6/2019.

F4: The price reported in Column 4 is a weighted average price. The shares were sold in multiple transactions at prices ranging from $16.48 to $16.76. Full information regarding the number of shares sold at each separate price can be furnished to the SEC staff upon request.

F5: These options are fully vested in accordance with their terms.