Alkermes (ALKS) VP exercises RSUs and withholds 808 shares for tax

Rhea-AI Filing Summary

Alkermes plc vice president of finance Samuel Joseph Parisi reported equity transactions involving restricted stock units and ordinary shares. On February 26, 2026, he acquired 2,747 ordinary shares through the exercise/conversion of a restricted stock unit award, with each unit representing one ordinary share. Following this, a separate transaction disposed of 808 ordinary shares at $30.73 per share to cover tax obligations, leaving him with 14,607 ordinary shares held directly. The underlying restricted stock unit award vests in four equal annual installments beginning on February 26, 2025.

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^*

Parisi Samuel Joseph

(Last) (First) (Middle)

900 WINTER STREET

(Street)

WALTHAM MA 02451

(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)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	VP, Finance (Interim PAO)

3. Date of Earliest Transaction (Month/Day/Year)
02/26/2026

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	02/26/2026		M		2,747	A	(1)	15,415	D
Ordinary Shares	02/26/2026		F		808	D	$30.73	14,607	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
Restricted Stock Unit Award	(1)	02/26/2026		M			2,747	(2)	(2)	Ordinary Shares	2,747	(1)	5,493	D

Explanation of Responses:

1. Each restricted stock unit represents a contingent right to receive one ordinary share.

2. Shares subject to the restricted stock unit award vest in four equal annual installments, commencing on 2/26/2025.

	/s/ Shantale Greenson, attorney-in-fact for Samuel Joseph Parisi	02/27/2026
	** 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).
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FAQ

What insider transaction did Alkermes (ALKS) report for Samuel Joseph Parisi?

Alkermes reported that VP of Finance Samuel Joseph Parisi exercised a restricted stock unit award into 2,747 ordinary shares and had 808 shares withheld to satisfy tax obligations, all in directly held accounts.

How many Alkermes (ALKS) shares does Samuel Joseph Parisi hold after this Form 4?

After these transactions, Samuel Joseph Parisi directly holds 14,607 ordinary shares of Alkermes plc. This reflects both the conversion of 2,747 RSUs into shares and the tax-withholding disposition of 808 shares reported on the same date.

What type of equity award did Samuel Joseph Parisi exercise at Alkermes (ALKS)?

He exercised a Restricted Stock Unit Award, where each unit represents a contingent right to receive one ordinary share. The award vests in four equal annual installments, beginning on February 26, 2025, according to the disclosed vesting schedule.

Was the Alkermes (ALKS) insider transaction a market sale of shares?

The filing shows a tax-withholding disposition of 808 shares at $30.73 per share, coded "F". This represents shares delivered to cover taxes rather than an open-market sale initiated for investment purposes.

What do the transaction codes M and F mean in the Alkermes (ALKS) Form 4?

Code M indicates an exercise or conversion of a derivative security, here restricted stock units converting into ordinary shares. Code F indicates shares were disposed of to pay the exercise price or related tax liabilities.

Does Samuel Joseph Parisi hold Alkermes (ALKS) shares directly or indirectly after these transactions?

All reported positions are listed as direct ownership. The Form 4 shows the "D" ownership code and does not reference any trusts, partnerships, or other entities, indicating the shares are held directly by Samuel Joseph Parisi.