Richard F. Pops - Feb 8, 2024 Form 4 Insider Report for Alkermes plc. (ALKS)

Role: Director and CEO, Alkermes plc, Director
Signature: /s/ Shantale Greenson, attorney-in-fact for Richard F. Pops
Stock symbol: ALKS
Transactions as of: Feb 8, 2024
Transactions value $: -$2,456,335
Form type: 4
Date filed: 2/12/2024, 10:00 PM
Previous filing: May 19, 2023
Next filing: Feb 22, 2024

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALKS	Ordinary Shares	Award		+219K	+20.76%		1.27M	Feb 8, 2024	Direct	F1
transaction	ALKS	Ordinary Shares	Tax liability	-$2.46M	-91.8K	-7.22%	$26.77	1.18M	Feb 8, 2024	Direct

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	These ordinary shares were acquired by the reporting person as a result of the vesting of performance-vesting restricted stock unit awards granted to the reporting person on February 22, 2021 with a three-year performance period that ended on December 31, 2023 (the "2021 PRSUs"). The vesting of this portion of the 2021 PRSUs was triggered by the determination of achievement of certain pre-specified performance goals and application of a total shareholder return modifier and represents the final vesting event under the 2021 PRSUs.

Content

These ordinary shares were acquired by the reporting person as a result of the vesting of performance-vesting restricted stock unit awards granted to the reporting person on February 22, 2021 with a three-year performance period that ended on December 31, 2023 (the "2021 PRSUs"). The vesting of this portion of the 2021 PRSUs was triggered by the determination of achievement of certain pre-specified performance goals and application of a total shareholder return modifier and represents the final vesting event under the 2021 PRSUs.