SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
	Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person* Jackson Blair Curtis (Last) (First) (Middle) CONNAUGHT HOUSE 1 BURLINGTON ROAD (Street) DUBLIN 4 IRELAND (City) (State) (Zip) IRELAND (Country)	2. Issuer Name and Ticker or Trading Symbol Alkermes plc. [ ALKS ] Foreign Trading Symbol	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director 10% Owner Officer (give title below) Other (specify below) President & CEO, Alkermes plc
	3. Date of Earliest Transaction (Month/Day/Year) 08/05/2026
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Employee Stock Option (Right to Buy)	$49.61	08/05/2026		A(1)		93,229		(2)	08/05/2036	Ordinary Shares	93,229	$0	93,229	D
Employee Stock Option (Right to Buy)	$49.61	08/05/2026		A(1)		124,305		(3)	08/05/2036	Ordinary Shares	124,305	$0	124,305	D

Explanation of Responses:

1. This award was granted in connection with the reporting person's appointment as President and Chief Executive Officer.

2. Shares underlying the stock option vest and become exercisable in four equal annual installments, commencing on 8/5/2027.

3. Shares underlying the stock option shall vest and become exercisable, if at all, in two tranches based upon the closing price of an ordinary share of Alkermes plc, as reported by the Nasdaq Global Select Market or another national securities exchange on which Alkermes plc's ordinary shares are listed, trading at certain pre-specified levels for 30 consecutive trading days, subject in each case to the reporting person's completion of two years of continuous service (or less, in the event of a change in control) in the role of President and Chief Executive Officer. This award expires ten years from the date of grant.

	/s/ Shantale Greenson, attorney-in-fact for Blair C. Jackson	08/07/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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