ALKS: Leadership change

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers. On May 20, 2026, at the 2026 annual general meeting of shareholders (the “Annual Meeting”) of Alkermes plc (the “Company”), the Company’s shareholders approved amendments to the Alkermes plc 2018 Stock Option and Incentive Plan to, among other things, increase the number of the Company’s ordinary shares authorized for issuance thereunder by 5,900,000 (the plan as so amended, the “2018 Plan”). The principal features of the 2018 Plan are summarized on pages 57-61 of the Company’s definitive proxy statement for the Annual Meeting filed with the U.S. Securities and Exchange Commission on April 6, 2026. That summary and the foregoing description are not intended to be complete and are qualified in their entirety by reference to the full text of the 2018 Plan, a copy of which is filed as Exhibit 10.1 to this Current Report on Form 8-K. Item 5.07 Submission of Matters to a Vote of Security Holders. On May 20, 2026, the Company held its Annual Meeting. The final voting results for the Annual Meeting are as follows: 1. By separate resolutions, shareholders elected the following directors, each to serve on the Company’s board of directors (the “Board”) for a one-year term until the Company’s 2027 annual general meeting of shareholders, with the votes cast as follows: For: Against: Abstain: Broker Non-Votes: Shane M. Cooke 135,495,689 5,523,691 150,595 7,911,628 Richard B. Gaynor, M.D. 139,207,401 1,903,354 59,220 7,911,628 Cato T. Laurencin, M.D., Ph.D. 139,953,548 1,159,431 56,996 7,911,628 Nancy S. Lurker 133,906,559 6,588,027 675,389 7,911,628 Brian P. McKeon 136,233,419 4,722,973 213,583 7,911,628 Richard F. Pops 139,164,