As of December 2025 Phathom Pharmaceuticals has a market cap of HK$8.05 Billion. This makes Phathom Pharmaceuticals the world's 5903th 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 Phathom Pharmaceuticals was reported to be: