Exhibit 5.1
24 July 2024
To: Board of Directors
Alkermes plc
Connaught House
Burlington Road
Dublin 4
Ireland D04 C5Y6
Re: Alkermes plc - registration statement on Form S-8 in relation to the Alkermes plc 2018 Stock Option and Incentive Plan, as amended
Dear Sirs,
and is subject to the assumptions and qualifications set out below.
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Subject to the assumptions and qualifications set out in this Opinion and to any matters not disclosed to us, we are of the opinion that:
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For the purpose of giving this Opinion, we assume the following without any responsibility on our part if any assumption proves to have been untrue as we have not verified independently any assumption:
The Registration Statement and the Plan
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Authenticity and bona fides
Accuracy of Searches and Warranties
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Solvency and Insolvency
Commercial Benefit
This Opinion is addressed to you in connection with the registration of the Shares with the SEC. We hereby consent to the inclusion of this Opinion as an exhibit to the Registration Statement
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to be filed with the SEC. In giving this consent, we do not thereby admit that we are in a category of persons whose consent is required under Section 7 of the Securities Act.
Yours faithfully,
/s/ Arthur Cox LLP
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SCHEDULE
The Plan Documents
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