Alkermes director Whitaker receives stock awards

Both awards are scheduled to vest in three equal annual installments beginning October 7, 2027.

Rhea-AI Filing Summary

Alkermes plc. director Anne Clem Whitaker received 7,239 restricted stock units and options covering 17,998 ordinary shares on October 7, 2026. Each restricted stock unit represents a contingent right to receive one ordinary share. The options have an exercise price of $41.4450 per share and expire October 7, 2036. Both awards vest in three equal annual installments beginning October 7, 2027.

Insider Trade Summary

Grant/Award: 25,237 shares

Grant/Award 2 txns

Insider Whitaker Anne Clem

Role Director

Type	Security	Shares	Price	Value
Grant/Award	Restricted Stock Unit Award F1, F2	7,239	$0.00	$0.00
Grant/Award	Non Qualified Stock Option (Right to Buy) F3	17,998	$0.00	$0.00

Holdings After Transaction: Restricted Stock Unit Award — 7,239 contracts (Direct); Non Qualified Stock Option (Right to Buy) — 17,998 contracts (Direct)

Footnotes (3)

1. F1. Each restricted stock unit represents a contingent right to receive one ordinary share.
2. F2. Shares subject to the restricted stock unit award vest in three equal annual installments commencing on 10/7/2027.
3. F3. Shares subject to the stock option award vest in three equal annual installments commencing on 10/7/2027.

Key Figures

Restricted stock units awarded: 7,239 units Ordinary shares covered by options: 17,998 shares Exercise price: $41.4450 per share +2 more

5 metrics

Restricted stock units awarded 7,239 units Awarded October 7, 2026

Ordinary shares covered by options 17,998 shares Awarded October 7, 2026

Exercise price $41.4450 per share Options awarded October 7, 2026

Award vesting schedule 3 equal annual installments Beginning October 7, 2027; applies to both awards

Option expiration date October 7, 2036 Options awarded October 7, 2026

Key Terms

Restricted Stock Unit Award, Non Qualified Stock Option (Right to Buy), contingent right, three equal annual installments

4 terms

Restricted Stock Unit Award financial

"Shares subject to the restricted stock unit award"

A restricted stock unit award is a promise by a company to give an employee a specified number of company shares at a future date if certain conditions are met, such as staying with the company or hitting performance goals. For investors, these awards matter because they can increase the total number of shares outstanding when converted, diluting existing holders, and they align employees’ incentives with shareholders’ interests much like giving a rising bonus that becomes real only after conditions are satisfied.

Non Qualified Stock Option (Right to Buy) financial

"Non Qualified Stock Option (Right to Buy)"

contingent right financial

"Each restricted stock unit represents a contingent right"

three equal annual installments financial

"vest in three equal annual installments"

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What awards did ALKS director Anne Clem Whitaker receive?

Anne Clem Whitaker, a director of Alkermes plc. (ALKS), received 7,239 restricted stock units and options covering 17,998 ordinary shares on October 7, 2026. Each restricted stock unit represents a contingent right to receive one ordinary share.

What are the terms of Anne Clem Whitaker’s ALKS stock options?

The options cover 17,998 ordinary shares and have an exercise price of $41.4450 per share. They vest in three equal annual installments beginning October 7, 2027, and expire October 7, 2036.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Available on EDGAR 10/09/2026 - 06:16 PM Accepted by SEC EDGAR 10/09/2026 - 06:16 PM Learn about SEC filing dates

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^*

Whitaker Anne Clem

(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 ]

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

X	Director		10% Owner
	Officer (give title below)		Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
10/07/2026

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

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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

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
Restricted Stock Unit Award	(1)	10/07/2026		A		7,239		(2)	(2)	Ordinary Shares	7,239	$0	7,239	D
Non Qualified Stock Option (Right to Buy)	$41.445	10/07/2026		A		17,998		(3)	10/07/2036	Ordinary Shares	17,998	$0	17,998	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 three equal annual installments commencing on 10/7/2027.

3. Shares subject to the stock option award vest in three equal annual installments commencing on 10/7/2027.

	/s/ Shantale Greenson, attorney-in-fact for Anne C. Whitaker	10/09/2026
	** 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.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
* Form 4: SEC 1474 (03-26)