On the Record · Alnylam Pharmaceuticals
Alnylam Pharmaceuticals subsidiaries, as it lists them
The subsidiaries Alnylam Pharmaceuticals lists in its latest annual report, with the jurisdiction of each, linked to the filing.
Subsidiaries it lists
| Subsidiary | Jurisdiction |
|---|---|
| Alnylam U.S., Inc. | Delaware |
| Alnylam U.S. Holdings, Inc. | Delaware |
| Alnylam UK Holdings Ltd. | United Kingdom |
| Alnylam Securities Corporation | Massachusetts |
| Sirna Therapeutics, Inc. | Delaware |
| Alnylam Australia Pty Ltd. | Australia |
| Alnylam Austria GmbH | Austria |
| Alnylam Belgium SPRL/BVBA | Belgium |
| Alnylam Brasil Farmaceutica Ltda. | Brazil |
| Alnylam (Bermuda) Ltd. | Bermuda |
| Alnylam Canada ULC | Canada |
| Alnylam France SAS | France |
| Alnylam Europe AG | Germany |
| Alnylam Germany GmbH | Germany |
| Alnylam Italy Srl | Italy |
| Alnylam Japan KK | Japan |
| Alnylam Netherlands BV | Netherlands |
| Alnylam Pharmaceuticals Spain SL | Spain |
| Alnylam Sweden AB | Sweden |
| Alnylam Switzerland GmbH | Switzerland |
| Alnylam Taiwan Co. Ltd. | Taiwan |
| ALNYPT Unipessoal LDA | Portugal |
| Alnylam UK Ltd. | United Kingdom |
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 Alnylam Pharmaceuticals’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 2026-02-12. 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.