As of December 2025 Generation Bio has a market cap of ยฃ26.95 Million. This makes Generation Bio the world's 9966th 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 5th, 2025 the market cap of Generation Bio was reported to be: