As of January 2026 Gossamer Bio has a market cap of C$0.98 Billion. This makes Gossamer Bio the world's 6561th 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 31st, 2025 the market cap of Gossamer Bio was reported to be: