As of June 2026 Upstream Bio has a market cap of S$0.43 Billion. This makes Upstream Bio the world's 8078th 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 Jun 20th, 2026 the market cap of Upstream Bio was reported to be: