Altimmune, Inc. (NASDAQ:ALT – Get Free Report) shot up 6.5% during trading on Monday . The stock traded as high as $7.37 and last traded at $7.36. 1,032,095 shares traded hands during mid-day trading, a decline of 81% from the average session volume of 5,444,214 shares. The stock had previously closed at $6.91. Analyst Upgrades […]