Upstream Bio, Inc. (NASDAQ:UPB) plunged 47.2% in today's trading, closing at $14.69.
The Healthcare stock traded 8,829,301 shares, 20.2x its average daily volume of 437,049 shares.
Upstream Bio, Inc. has a market capitalization of $1.5B. The stock has gained 0.0% year-to-date.