Investor Resources

Investor FAQs

For easy reference, we list below answers to many of the questions we hear most often. Click on a question below to display the answer.

  1. Where is Alkermes incorporated?
    Alkermes plc is incorporated in Ireland.
  2. What exchange is Alkermes stock listed on? What is Alkermes' stock symbol?
    Alkermes is listed on the Nasdaq Global Select Market under the ticker symbol ALKS.
  3. What is Alkermes' CUSIP #?
    The CUSIP # for Alkermes' ordinary shares is G01767 105
  4. Where is Alkermes' headquarters?
    Alkermes plc is headquartered in Dublin, Ireland. The company also has a research and development (R&D) center in Waltham, Massachusetts; an R&D facility in Athlone, Ireland; and a manufacturing facility in Wilmington, Ohio.
  5. Can I purchase shares directly from the company?
    No. Alkermes does not have a direct stock purchase plan. You may purchase shares of Alkermes through a broker.
  6. Who is Alkermes' transfer agent?
    Alkermes' transfer agent is Computershare Trust Company, N.A. You can reach Computershare at:

    P.O. Box 43006
    Providence RI 02940-3078
    Phone: 866-281-3760
  7. I've lost my stock certificates; how can I replace them?
    Alkermes plc ordinary shares are issued in "book entry" form without physical stock certificates. Some Alkermes shareholders may have physical stock certificates representing common stock of Alkermes, Inc. that is exchangeable for Alkermes plc ordinary shares. In the event that you hold, but have lost, any such physical stock certificates, you should contact our transfer agent, Computershare Trust Company, N.A. You can reach Computershare at:

    Computershare
    P.O. Box 505000
    Louisville, KY 40233
    Phone: 866-281-3760
  8. I'm a shareholder; who should I notify of a change in my address?
    If you hold your shares through a bank or broker and you change your address, please contact your bank or broker. If you hold your shares in registered form and you change your address, you should contact our transfer agent, Computershare Trust Company, N.A. You can reach Computershare at:

    Computershare
    P.O. Box 505000
    Louisville, KY 40233
    Phone: 866-281-3760
  9. What is Alkermes' fiscal year?
    Alkermes' fiscal year begins January 1 and ends December 31 each year. The quarterly breakdown is as follows:
    • Q1 January 1- March 31
    • Q2 April 1 – June 30
    • Q3 July 1 - September 30
    • Q4 October 1 – December 31

Separation and Distribution of Mural Oncology Shares

In November 2023, Alkermes plc (Alkermes) separated its oncology business into Mural Oncology plc (Mural), an independent publicly-traded company. In connection with the separation, shareholders of Alkermes received a pro-rata distribution of shares of Mural.

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  1. What happened to my Alkermes shares? How many do I own of each company?
    • You still hold the same number of Alkermes ordinary shares as you held prior to the separation and distribution.
    • Upon the distribution effective time, you received one ordinary share of Mural (MURA) for every ten ordinary shares of Alkermes that you held as of the close of business on November 6, 2023, the record date for the distribution.
  2. What happened to fractional shares of Mural Oncology plc that resulted from application of the distribution ratio?
    • Shareholders will receive cash in lieu of any fractional ordinary shares of Mural that they would have received after application of the distribution ratio.
  3. What are the material U.S. federal income tax consequences of the distribution?
    • The separation and distribution were structured to qualify as a tax-free distribution (except for cash received in lieu of fractional shares of Mural) to Alkermes’ shareholders and the company and its affiliates for U.S. federal income tax purposes.
    • It was a condition to the distribution that Alkermes receive a private letter ruling from the U.S. Internal Revenue Service (the IRS) and an opinion from Goodwin Procter LLP, together confirming that the separation and the distribution, in relevant part and together with certain related transactions, subject to certain caveats, are tax-free for U.S. federal income tax purposes under Sections 355 and 368(a)(1)(D) of the Internal Revenue Code of 1986, as amended (the Code).
    • If the separation and distribution, in relevant part and together with certain related transactions, subject to certain caveats, so qualify as a transaction that is tax-free, then for U.S. federal income tax purposes, subject to the discussion below regarding cash in lieu of fractional ordinary shares, no gain or loss will be recognized by shareholders of Alkermes who received shares of Mural in the distribution and no amount will be included in such shareholders’ income upon receipt of ordinary shares of Mural pursuant to the distribution. Such shareholders will, however, recognize a gain or loss for U.S. federal income tax purposes with respect to cash received in lieu of a fractional ordinary share of Mural.
    • Shareholders should consult their tax advisors as to the particular consequences of the distribution to them, including the applicability and effect of any U.S. federal, state and local tax laws, as well as non-U.S. tax laws. For more information regarding the material U.S. federal income tax consequences of the distribution, please see the Registration Statement on Form 10 filed by Mural on October 26, 2023 (as amended) and declared effective by the U.S. Securities and Exchange Commission on October 31, 2023 (the Form 10).
  4. What are the material Irish tax consequences of the separation and distribution?
    • The separation and distribution will not give rise to Irish taxes for Alkermes shareholders (except, for Alkermes shareholders that are otherwise subject to Irish taxes, with respect to any cash received in lieu of fractional shares of Mural). Irish stamp duty may be payable in respect of transfers outside the Depository Trust Company (DTC) of Mural ordinary shares after the distribution. Shareholders should consult their tax advisors as to the particular tax consequences applicable to them. For more information regarding the material Irish tax consequences of the separation and distribution, please see the Form 10.
  5. If I sold my shares of Alkermes after the record date but before the distribution date, did I receive the dividend?
    • If Alkermes shares were sold on the “regular way” trading market (i.e., under the ticker “ALKS”, such shares were traded together with their accompanying entitlement to receive shares of Mural in the distribution.
    • If Alkermes shares were sold on the temporary “ex-distribution” trading market (i.e., under the ticker “ALKSV”), such shares were traded without their accompanying entitlement to receive shares of Mural in the distribution.
  6. How do I determine my adjusted tax basis for U.S. federal income tax purposes in my Alkermes ordinary shares and the tax basis for U.S. federal income tax purposes in the Mural ordinary shares I received in the distribution?
    • For U.S. federal income tax purposes, generally, a shareholder’s aggregate basis in the ordinary shares held in Alkermes and the new Mural ordinary shares received in the distribution (including any fractional interest in Mural ordinary shares for which cash is received) will equal the aggregate basis in the Alkermes ordinary shares held immediately before the distribution, allocated between the Alkermes ordinary shares and Mural ordinary shares (including any fractional interest in Mural ordinary shares for which cash is received) received in the distribution in proportion to the relative fair market value of each.
    • Please click here for a copy of the completed IRS Form 8937, which includes a general summary regarding the application of certain U.S. federal income tax laws and regulations relating to the effects of the Mural distribution on the tax basis of Alkermes stock and the allocation of tax basis between the stock of Alkermes and Mural following the Mural distribution. The information contained herein does not constitute tax advice and does not purport to be complete or to describe the consequences that may apply to any particular shareholder. Neither Alkermes nor Mural provides tax advice to its shareholders. Shareholders should consult their tax advisors as to the particular consequences of the Mural distribution to them, including the application of the tax basis allocation rules and the application of state, local and non-U.S. tax laws.
  7. How do I determine my tax basis for Irish tax purposes?
    • For Irish tax purposes, Alkermes shareholders will be treated as having acquired their shares in Mural at the same time and for the appropriate portion of the original base cost as they acquired their original shares in Alkermes, and the base cost of their original shares in Alkermes will be reduced accordingly. Alkermes shareholders that are not Irish residents and do not hold their shares in an Irish taxable branch or permanent establishment are not subject to Irish tax on any gain in Alkermes shares. Shareholders should consult their tax advisors as to the particular consequences of the separation and distribution to them, including the application of the tax basis allocation rules and the application of Irish tax law.
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Alkermes plc is followed by the analysts listed. Please note that any opinions, estimates or forecasts regarding Alkermes plc's performance made by these analysts are theirs alone and do not represent opinions, forecasts or predictions of Alkermes plc or its management. Alkermes plc does not by its reference or distribution imply its endorsement of or concurrence with such information, conclusions or recommendations.