Atara Biotherapeutics, Inc. (NASDAQ:ATRA) plunged 57.0% in today's trading, closing at $5.88.
The Healthcare stock traded 4,599,744 shares, 64.0x its average daily volume of 71,875.8 shares.
Atara Biotherapeutics, Inc. has a market capitalization of $128,721,212. The stock has gained 0.0% year-to-date.
