As of December 2025 X4 Pharmaceuticals has a market cap of โน28.62 Billion. This makes X4 Pharmaceuticals the world's 7859th 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 X4 Pharmaceuticals was reported to be: