Alkermes (ALKS) CEO Pops logs 149,580-share award and 62,230-share sale

Rhea-AI Filing Summary

Alkermes plc Director and CEO Richard F. Pops reported two transactions in ordinary shares. On February 5, 2026, he acquired 149,580 ordinary shares at no cost from the vesting of performance-based restricted stock units granted in February 2023 after a three-year performance period.

On the same date, he disposed of 62,230 ordinary shares at $33.55 per share. Following these transactions, Pops beneficially owned 1,377,740 ordinary shares directly.

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

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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^*

POPS RICHARD F

(Last) (First) (Middle)

CONNAUGHT HOUSE

1 BURLINGTON ROAD

(Street)

DUBLIN 4 IRELAND

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Alkermes plc. [ ALKS ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

X	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	Director and CEO, Alkermes plc

3. Date of Earliest Transaction (Month/Day/Year)
02/05/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	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
Ordinary Shares	02/05/2026		A		149,580	A	(1)	1,439,970	D
Ordinary Shares	02/05/2026		F		62,230	D	$33.55	1,377,740	D

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

Explanation of Responses:

1. 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 23, 2023 with a three-year performance period that ended on December 31, 2025 (the "2023 PRSUs"). The vesting of this portion of the 2023 PRSUs was triggered by the determination of achievement of certain pre-specified performance goals and application of a relative total shareholder return modifier and represents the final vesting event under the 2023 PRSUs.

	/s/ Shantale Greenson, attorney-in-fact for Richard F. Pops	02/06/2026
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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FAQ

What insider transactions did Alkermes (ALKS) CEO Richard F. Pops report?

Richard F. Pops reported acquiring 149,580 Alkermes ordinary shares at no cost and disposing of 62,230 shares at $33.55 per share on February 5, 2026. After these transactions, he directly held 1,377,740 ordinary shares in Alkermes plc.

How many Alkermes (ALKS) shares does CEO Richard F. Pops own after this Form 4?

After the reported transactions, Richard F. Pops beneficially owned 1,377,740 Alkermes ordinary shares directly. This figure reflects the net position following the acquisition of 149,580 shares from vested performance-based RSUs and the disposition of 62,230 shares on February 5, 2026.

Why did Richard F. Pops receive 149,580 Alkermes (ALKS) ordinary shares?

He received 149,580 ordinary shares due to vesting of performance-vesting restricted stock units granted on February 23, 2023. These units vested after a three-year performance period ending December 31, 2025, based on achievement of pre-specified performance goals and a relative total shareholder return modifier.

What does the performance period for Alkermes (ALKS) 2023 PRSUs cover?

The 2023 performance-vesting restricted stock units had a three-year performance period ending December 31, 2025. Vesting depended on meeting specified performance goals and applying a relative total shareholder return modifier, and this transaction reflects the final vesting event under those 2023 PRSUs.

At what price were some of Richard F. Pops’ Alkermes (ALKS) shares disposed?

In the reported transaction, 62,230 Alkermes ordinary shares were disposed of at a price of $33.55 per share on February 5, 2026. This sale occurred after the vesting-related share acquisition recorded in the same Form 4 filing for Richard F. Pops.