Alkermes (ALKS) CCO converts 6,407 RSUs, withholds 2,845 shares for tax

Rhea-AI Filing Summary

Alkermes plc senior vice president and chief commercial officer Christian Todd Nichols reported equity compensation activity involving restricted stock units and ordinary shares. On 2/23/2026, 6,407 restricted stock units were exercised into 6,407 ordinary shares at a price of $0.00 per share, reflecting a derivative exercise or conversion. To cover tax obligations, 2,845 ordinary shares were disposed of at $32.19 per share through a tax-withholding transaction. After these movements, Nichols directly owned 112,762 ordinary shares. Each restricted stock unit represents a right to receive one ordinary share, and units vest in four equal annual installments beginning 2/23/2024.

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^*

Nichols Christian Todd

(Last) (First) (Middle)

900 WINTER ST.

(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)
	SVP, Chief Commercial Officer

3. Date of Earliest Transaction (Month/Day/Year)
02/23/2026

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	02/23/2026		M		6,407	A	(1)	115,607	D
Ordinary Shares	02/23/2026		F		2,845	D	$32.19	112,762	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)	02/23/2026		M			6,407	(2)	(2)	Ordinary Shares	6,407	(1)	6,408	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 2/23/2024.

	/s/ Shantale Greenson, attorney-in-fact for Christian Todd Nichols	02/25/2026
	** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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FAQ

What insider transactions did Alkermes (ALKS) executive Christian Todd Nichols report?

Nichols reported equity compensation activity on 2/23/2026, including the exercise of 6,407 restricted stock units into ordinary shares and a separate tax-withholding disposition of 2,845 shares. These movements reflect standard vesting and tax settlement related to his compensation package.

How many Alkermes (ALKS) restricted stock units did Nichols convert to shares?

He converted 6,407 restricted stock units into 6,407 ordinary shares at a price of $0.00 per share. Each restricted stock unit represents a contingent right to receive one ordinary share as part of his equity compensation.

Why did Christian Todd Nichols dispose of Alkermes (ALKS) shares in this Form 4?

He disposed of 2,845 ordinary shares at $32.19 per share under code “F,” which indicates a tax-withholding transaction. This means shares were delivered to satisfy tax obligations, not an open-market discretionary sale.

How many Alkermes (ALKS) shares does Nichols own after these transactions?

Following the reported equity transactions, Christian Todd Nichols directly owned 112,762 ordinary shares of Alkermes plc. This balance reflects the RSU conversion into shares and the tax-withholding disposition executed on 2/23/2026.

How do Christian Todd Nichols’ Alkermes (ALKS) restricted stock units vest?

The restricted stock unit award vests in four equal annual installments, beginning on 2/23/2024. Each vested unit represents a contingent right to receive one ordinary share, which can then be delivered to the executive subject to applicable taxes.

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

Code M indicates an exercise or conversion of a derivative security, here RSUs into ordinary shares. Code F indicates shares used to pay tax liabilities by delivering securities, rather than a discretionary open-market sale.