As of December 2025 Aptose Biosciences has a market cap of $4.36 Million USD. This makes Aptose Biosciences the world's 10466th 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 Aptose Biosciences was reported to be: