Richard F. Pops - 02 Mar 2026 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
Issuer symbol: ALKS
Transactions as of: 02 Mar 2026
Net transactions value: $0
Form type: 4
Filing time: 04 Mar 2026, 20:20:22 UTC
Previous filing: 06 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
POPS RICHARD F	Director and CEO, Alkermes plc, Director	CONNAUGHT HOUSE, 1 BURLINGTON ROAD, DUBLIN 4 IRELAND	/s/ Shantale Greenson, attorney-in-fact for Richard F. Pops	04 Mar 2026	0001126490

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	Award		+88,843		$0.000000^*	88,843	02 Mar 2026	Ordinary Shares	88,843		Direct	F1, F2

* 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 full on 12/31/2026 in connection with the Company's previously announced leadership transition.