Alnylam to Webcast Presentations at Upcoming September Investor Conferences

Alnylam Pharmaceuticals, Inc. (Nasdaq: ALNY), the leading RNAi therapeutics company, announced today that management will present company overviews at the following conferences being held virtually:

• Morgan Stanley 19^th Annual Global Healthcare Conference on Thursday, September 9, 2021 at 3:30 pm ET
• H.C. Wainwright 23^rd Annual Global Investment Conference on Monday, September 13, 2021 at 7:00 am ET
• BofA Global Healthcare Conference on Thursday, September 16, 2021 at 10:05 am ET
• Cantor Virtual Global Healthcare Conference on Tuesday, September 28, 2021 at 10:40 am ET

A live audio webcast of each presentation will be available on the Investors section of the Company's website at www.alnylam.com/events. A replay will be available on the Alnylam website within 48 hours after each event.

About Alnylam
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 people afflicted with rare genetic, cardio-metabolic, hepatic infectious, and central nervous system (CNS)/ocular diseases. Based on Nobel Prize-winning science, RNAi therapeutics represent a powerful, clinically validated approach for the potential treatment of a wide range of severe and debilitating diseases. Founded in 2002, Alnylam is delivering on a bold vision to turn scientific possibility into reality, with a robust RNAi therapeutics platform. Alnylam's commercial RNAi therapeutic products are ONPATTRO^® (patisiran), GIVLAARI^® (givosiran), OXLUMO^® (lumasiran), and Leqvio^® (inclisiran) being developed and commercialized by Alnylam's partner Novartis. Alnylam has a deep pipeline of investigational medicines, including six product candidates that are in late-stage development. Alnylam is executing on its "Alnylam P⁵x25" strategy to deliver transformative medicines in both rare and common diseases benefiting patients around the world through sustainable innovation and exceptional financial performance, resulting in a leading biotech profile. Alnylam is headquartered in Cambridge, MA. For more information about our people, science and pipeline, please visit www.alnylam.com and engage with us on Twitter at @Alnylam, on LinkedIn, or on Instagram.