As of December 2025 Gossamer Bio has a market cap of โน71.82 Billion. This makes Gossamer Bio the world's 6359th 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 9th, 2025 the market cap of Gossamer Bio was reported to be: