As of December 2025 Alnylam Pharmaceuticals has a market cap of โน5.440 Trillion. This makes Alnylam Pharmaceuticals the world's 379th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Dec 7th, 2025 the market cap of Alnylam Pharmaceuticals was reported to be: