[144] Alkermes plc. SEC Filing

Rhea-AI Filing Summary

Alkermes plc insider Craig Hopkinson has filed a notice to sell ordinary shares under Rule 144. The filing covers 9,000 ordinary shares to be sold through Merrill Lynch on NASDAQ, with an aggregate market value of $305,384.28 and 165,117,509 shares outstanding.

The shares come from a broker-assisted cashless exercise of 5,000 employee stock options on 02/02/2026 and vesting of restricted stock unit awards totaling 4,000 shares during February 2025. The form also lists several prior ordinary share sales by Hopkinson over the past three months with disclosed gross proceeds.

Form 144 Filer Information	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933
FORM 144

144: Filer Information

Filer CIK
Filer CCC
Is this a LIVE or TEST Filing?	LIVE TEST
Submission Contact Information
Name
Phone
E-Mail Address

144: Issuer Information

Name of Issuer

SEC File Number

Address of Issuer

Phone

Name of Person for Whose Account the Securities are To Be Sold

See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice.

Relationship to Issuer

144: Securities Information

Title of the Class of Securities To Be Sold	Name and Address of the Broker	Number of Shares or Other Units To Be Sold	Aggregate Market Value	Number of Shares or Other Units Outstanding	Approximate Date of Sale	Name the Securities Exchange
Ordinary shares	Merrill Lynch 225 Liberty St Floor 37 New York NY 10281	9000	305384.28	165117509	02/02/2026	NASDAQ

Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor:

144: Securities To Be Sold

Title of the Class	Date you Acquired	Nature of Acquisition Transaction	Name of Person from Whom Acquired	Is this a Gift?	Date Donor Acquired	Amount of Securities Acquired	Date of Payment	Nature of Payment *
Ordinary shares	02/02/2026	Exercise of employee stock options	Alkermes plc.			5000	02/02/2026	Broker assisted cashless exercise
Ordinary shares	02/06/2025	Vesting of restricted stock unity award	Alkermes plc.			135	02/06/2025	Granted as part of issuer equity compensation plan
Ordinary shares	02/23/2025	Vesting of restricted stock unity award	Alkermes plc.			1000	02/23/2025	Granted as part of issuer equity compensation plan
Ordinary shares	02/26/2025	Vesting of restricted stock unity award	Alkermes plc.			2865	02/26/2025	Granted as part of issuer equity compensation plan

* If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid.

Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold.

144: Securities Sold During The Past 3 Months

Name and Address of Seller	Title of Securities Sold	Date of Sale	Amount of Securities Sold	Gross Proceeds
Craig Hopkinson CONNAUGHT HOUSE 1 BURLINGTON ROAD DUBLIN 4 L2 00000	Ordinary shares	11/03/2025	9000	273441.50
Craig Hopkinson CONNAUGHT HOUSE 1 BURLINGTON ROAD DUBLIN 4 L2 00000	Ordinary shares	12/01/2025	4000	117200.00
Craig Hopkinson CONNAUGHT HOUSE 1 BURLINGTON ROAD DUBLIN L2 00000	Ordinary shares	12/03/2025	3748	112447.26
Craig Hopkinson CONNAUGHT HOUSE 1 BURLINGTON ROAD DUBLIN 4 L2 00000	Ordinary shares	01/02/2026	4000	112000.00
Craig Hopkinson CONNAUGHT HOUSE 1 BURLINGTON ROAD DUBLIN 4 L2 00000	Ordinary shares	01/08/2026	5000	150004.95

144: Remarks and Signature

Remarks

Date of Notice

Date of Plan Adoption or Giving of Instruction, If Relying on Rule 10b5-1

ATTENTION:

The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date.

Signature

ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)