Stratrix
On the Record · Alkermes plc.

Alkermes plc. subsidiaries, as it lists them

The subsidiaries Alkermes plc. lists in its latest annual report, with the jurisdiction of each, linked to the filing.

Subsidiaries it lists

SubsidiaryJurisdiction
Alkermes Ireland Holdings LimitedIreland
Alkermes Pharma Ireland LimitedIreland
Daravita Pharma Ireland LimitedIreland
Alkermes Finance Ireland (No 3) LimitedIreland
Alkermes Science Four LimitedIreland
Alkermes Science Five LimitedIreland
Alkermes, Inc.Pennsylvania
Alkermes US Holdings, Inc.Delaware
Rodin Therapeutics, Inc.Delaware
Alkermes Finance LLCDelaware
Avadel Pharmaceuticals plcIreland
Flamel Ireland LimitedIreland
Avadel Finance Ireland Designated Activity CompanyIreland
Avadel US Holdings, LLCDelaware
Avadel Management, LLCDelaware
Avadel CNS Pharmaceuticals, LLCDelaware
Avadel France Holding SASFrance
Avadel Research SASFrance
Avadel Investment Company LimitedCayman Islands
Avadel Finance Cayman LimitedCayman Islands

From Exhibit 21 of the 10-K for 2025. Companies must list their significant subsidiaries there and may leave out smaller ones, so this is the company’s own list, not every entity it owns.

Read from Alkermes plc.’s annual reports (10-K for 2025, 10-K for 2024, 10-K for 2023) and the financial data it files with the SEC, as of 2026-02-25. Every quotation is word for word from the filing linked beside it; how these pages are built and checked. The full record is in its company data sheet.