As of February 2026 Phathom Pharmaceuticals has a market cap of โน80.89 Billion. This makes Phathom Pharmaceuticals the world's 6225th 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 Feb 19th, 2026 the market cap of Phathom Pharmaceuticals was reported to be: