David Joseph Gaffin - Feb 18, 2025 Form 4 Insider Report for Alkermes plc. (ALKS)

Role: EVP, CLO, Alkermes, Inc.
Signature: /s/ Stephanie Roche, attorney-in-fact for David Joseph Gaffin
Stock symbol: ALKS
Transactions as of: Feb 18, 2025
Transactions value $: -$101,310
Form type: 4
Date filed: 2/20/2025, 05:16 PM
Previous filing: Feb 7, 2025
Next filing: Feb 25, 2025
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		+6.35K	+3.37%		195K	Feb 18, 2025	Direct	F1
transaction	ALKS	Ordinary Shares	Tax liability	-$101K	-2.82K	-1.45%	$35.90	192K	Feb 18, 2025	Direct

Showing 1 to 2 of 2 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		-6.35K	-50%		6.36K	Feb 18, 2025	Ordinary Shares	6.35K		Direct	F1, F2
transaction	ALKS	Employee Stock Option (Right to Buy)	Award	$0	+64K		$0.00	64K	Feb 19, 2025	Ordinary Shares	64K	$35.84	Direct	F3
transaction	ALKS	Restricted Stock Unit Award	Award	$0	+30.7K		$0.00	30.7K	Feb 19, 2025	Ordinary Shares	30.7K		Direct	F1, F4

* 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 underlying the stock option vest and become exercisable in four equal annual installments commencing on 2/19/2026.
F4	Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/19/2026.