Atara Biotherapeutics, Inc. (ATRA)

Last Closing Price: 4.54 (2026-01-16)

Historical Volatility (Close-to-Close) (150-Day)

Historical Volatility (Close-to-Close): The past volatility of the security over the selected time frame, calculated using the closing price on each trading day.

Atara Biotherapeutics, Inc. (ATRA) had 150-Day Historical Volatility (Close-to-Close) of 1.6527 for 2026-01-16.