David Joseph Gaffin - Feb 18, 2024 Form 4 Insider Report for Alkermes plc. (ALKS)

Role: EVP, CLO, Alkermes, Inc.
Signature: /s/ Jeffrey Geary, attorney-in-fact for David J. Gaffin
Stock symbol: ALKS
Transactions as of: Feb 18, 2024
Transactions value $: -$151,132
Form type: 4
Date filed: 2/21/2024, 05:30 PM
Previous filing: Feb 12, 2024
Next filing: Feb 23, 2024
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ALKS	Ordinary Shares	Options Exercise		+6.36K	+4.3%		154K	Feb 18, 2024	Direct	F1
transaction	ALKS	Ordinary Shares	Tax liability	-$60.1K	-1.87K	-1.21%	$32.18	152K	Feb 18, 2024	Direct
transaction	ALKS	Ordinary Shares	Options Exercise		+7.18K	+4.72%		159K	Feb 20, 2024	Direct	F1
transaction	ALKS	Ordinary Shares	Tax liability	-$91K	-2.99K	-1.88%	$30.39	156K	Feb 20, 2024	Direct

Showing 1 to 4 of 4 entries

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	ALKS	Restricted Stock Unit Award	Options Exercise		-6.36K	-33.34%		12.7K	Feb 18, 2024	Ordinary Shares	6.36K		Direct	F1, F2
transaction	ALKS	Restricted Stock Unit Award	Options Exercise		-7.18K	-100%		0	Feb 20, 2024	Ordinary Shares	7.18K		Direct	F1, F3

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

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one ordinary share.
F2	Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/18/2023.
F3	Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/20/2021.