SAVA stock looks poised to regain YTD decline as investors see potential of biopharma's Alzheimer's disease treatment Shares of Austin, Texas-based neuroscience biopharma company Cassava Sciences Inc (NASDAQ:SAVA) surged 11.73% in extended trading after a Form 4 filing disclosed an independent board director made a significant purchase in the post-fourth quarter results trading window. Q4 […]