As of February 2026 X4 Pharmaceuticals has a market cap of โน25.15 Billion. This makes X4 Pharmaceuticals the world's 8090th 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 21st, 2026 the market cap of X4 Pharmaceuticals was reported to be: