As of December 2025 Atara Biotherapeutics has a market cap of C$0.15 Billion. This makes Atara Biotherapeutics the world's 9188th 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 8th, 2025 the market cap of Atara Biotherapeutics was reported to be: