CAMBRIDGE, Mass.--(BUSINESS WIRE)--Alnylam Pharmaceuticals, Inc. (Nasdaq: ALNY), the leading RNAi therapeutics company, today announced the commencement of an underwritten public offering of 5,000,000 shares of its common stock. In addition, Alnylam has granted the underwriter of the offering a 30-day option to purchase up to an additional 750,000 shares of its common stock solely to cover over-allotments. All of the shares in the offering are to be sold by Alnylam.

Barclays Capital Inc. is acting as sole book-running manager for the offering.

Alnylam intends to use the net proceeds from this offering for general corporate purposes, including clinical trial costs and other research and development expenses, continued growth of its manufacturing, quality, commercial and medical affairs capabilities to support its transition toward a commercial-stage biopharmaceutical company, working capital, capital expenditures and general and administrative expenses.

About Alnylam Pharmaceuticals

Alnylam (Nasdaq: ALNY) is leading the translation of RNA interference (RNAi) into a whole new class of innovative medicines with the potential to transform the lives of patients who have limited or inadequate treatment options. Based on Nobel Prize-winning science, RNAi therapeutics represent a powerful, clinically-validated approach for the treatment of a wide range of debilitating diseases. Founded in 2002, Alnylam is delivering on a bold vision to turn scientific possibility into reality, with a robust discovery platform and deep pipeline of investigational medicines, including three product candidates that are in late-stage development or will be in 2017. Looking forward, Alnylam will continue to execute on its "Alnylam 2020" strategy of building a multi-product, commercial-stage biopharmaceutical company with a sustainable pipeline of RNAi-based medicines.