Gaffin David Joseph plan to sell securities of Alkermes plc. under Form 144

Gaffin David Joseph filed Form 144 to notify SEC of plan to sell 2034 units of Alkermes plc. securities around 2026-06-04, with aggregate market value of $87,563.70. The total outstanding units is 166675807.0. The amount planned to be sold represents 0.00% of total outstanding units; Recent transactions in past 3 months include: On 03/02/2026, sold 2034 units for $59575.86; On 03/03/2026, sold 2034 units for $60531.84; On 04/06/2026, sold 2034 units for $70315.38; On 05/04/2026, sold 2034 units for $67528.80;