Sema4 (NASDAQ:SMFR – Get Rating) was upgraded by Zacks Investment Research from a “sell” rating to a “hold” rating in a report released on Wednesday, Zacks.com reports. According to Zacks, “Sema4 Holdings Corp is a patient-centered health intelligence company. It is transforming healthcare by applying AI and machine learning to multidimensional, longitudinal clinical and genomic […]