Shares of Appian Co. (NASDAQ:APPN – Get Rating) were down 6.2% during mid-day trading on Wednesday . The company traded as low as $48.63 and last traded at $48.76. Approximately 227,573 shares changed hands during trading, a decline of 39% from the average daily volume of 373,682 shares. The stock had previously closed at $51.96. […]