As of September 2026 Ionis Pharmaceuticals has a market cap of ยฃ5.54 Billion. This makes Ionis Pharmaceuticals the world's 2483th 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 Sep 15th, 2026 the market cap of Ionis Pharmaceuticals was reported to be: