As of February 2026 Atara Biotherapeutics has a market cap of โน3.55 Billion. This makes Atara Biotherapeutics the world's 9835th 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 27th, 2026 the market cap of Atara Biotherapeutics was reported to be: