As of December 2025 Alnylam Pharmaceuticals has a market cap of ยฃ39.14 Billion. This makes Alnylam Pharmaceuticals the world's 445th 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 24th, 2025 the market cap of Alnylam Pharmaceuticals was reported to be: