Hopkinson Craig C. plan to sell securities of Alkermes plc. under Form 144

Hopkinson Craig C. filed Form 144 to notify SEC of plan to sell 9000 units of Alkermes plc. securities around 2026-05-01, with aggregate market value of $300,559.55. The total outstanding units is 166649934.0. The amount planned to be sold represents 0.01% of total outstanding units; Recent transactions in past 3 months include: On 02/02/2026, sold 9000 units for $305384.28; On 03/02/2026, sold 9000 units for $267485.14; On 04/01/2026, sold 9000 units for $319604.00;