Shares of Cassava Sciences, Inc. (NASDAQ:SAVA – Get Rating) rose 4.7% on Wednesday . The company traded as high as $25.92 and last traded at $25.91. Approximately 343,126 shares were traded during mid-day trading, a decline of 65% from the average daily volume of 972,789 shares. The stock had previously closed at $24.74. Wall Street […]