As of January 2026 Phathom Pharmaceuticals has a market cap of A$1.59 Billion. This makes Phathom Pharmaceuticals the world's 5882th 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 Jan 9th, 2026 the market cap of Phathom Pharmaceuticals was reported to be: