Alkermes (NASDAQ: ALKS) insider sells common stock via Form 144

Rhea-AI Filing Summary

Alkermes plc submitted a Form 144 reporting an intended sale of Common Stock on 03/02/2026 in connection with NASDAQ‑listed shares. The filing lists restricted stock unit vestings from 03/03/2017 (322 shares) and 02/17/2018 (1,712 shares) as sources of the shares.

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
Common Stock	Merrill Lynch 225 Liberty Street Floor 37 New York NY 10281	2034	59575.86	166649934	03/02/2026	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 *
Common Stock	03/03/2017	Vesting of restricted stock unit award	Alkermes plc.			322	03/03/2017	Granted as part of issuer equity compensation plan
Common Stock	02/17/2018	Vesting of restricted stock unit award	Alkermes plc.			1712	02/17/2018	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

Nothing to Report

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)

FAQ

What does Alkermes' Form 144 filing mean for ALKS shareholders?

It notifies the SEC of an intended sale of Common Stock by an affiliate or insider. The filing lists vested RSUs of 322 and 1,712 shares as part of the disclosure and the sale is reported on 03/02/2026.

How many shares tied to RSU vesting are listed in the ALKS Form 144?

The filing lists vested restricted stock units totaling 2,034 shares (322 and 1,712). These amounts are shown with vesting dates 03/03/2017 and 02/17/2018 in the excerpt provided.

Does the Form 144 state where Alkermes' shares will be sold?

The filing indicates the shares are NASDAQ‑listed Common Stock. Specific sale methods or brokerage details are not provided in the excerpt beyond a Merrill Lynch address reference.

When was Alkermes' Form 144 dated in the provided excerpt?

The excerpt shows the filing date as 03/02/2026. That date is presented alongside the NASDAQ listing and the securities information in the filing content.