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Alnylam Pharmaceuticals(ALNY) - 2025 Q2 - Quarterly Results

Exhibit 99.1 Contacts: Alnylam Pharmaceuticals, Inc. Christine Akinc (Investors and Media) 617-682-4340 Josh Brodsky (Investors) 617-551-8276 Alnylam Pharmaceuticals Reports Second Quarter 2025 Financial Results and Highlights Recent Period Progress − Generated Q2 2025 Total Net Product Revenues of $672 Million (64% Growth Compared with Q2 2024), Driven Primarily by Total TTR Revenues of $544 Million (77% Growth Compared with Q2 2024) – − Achieved Approximately 1,400 ATTR-CM Patients on AMVUTTRA (vutrisiran ...