Alkermes plc Acquires Avadel Pharmaceuticals plc

February 12, 2026

Alkermes plc completed its all-cash acquisition of Avadel Pharmaceuticals plc under an Irish High Court‑sanctioned scheme of arrangement, adding Avadel's FDA‑approved product LUMRYZ to Alkermes' commercial portfolio. The deal accelerates Alkermes' entry into the sleep medicine market, is expected to be accretive in 2026, and includes Avadel's clinical candidate valiloxybate.

Buyers
Alkermes plc
Targets
Avadel Pharmaceuticals plc
Sellers
Avadel Pharmaceuticals plc shareholders
Industry
Pharmaceuticals
Location
Ireland
Transaction Type
Buyout

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