Healthcare upgrades and initiations for Friday

|By:, SA News Editor

AstraZeneca (AZN +0.5%) upgraded to Buy at Liberum.

Ligand Pharmaceuticals (LGND +4.4%) upgraded to Hold from Sell at Cantor.

Vivus (VVUS +3.6%) initiated at Hold at WallachBeth.

Synageva BioPharma (GEVA +5.9%) initiated at Buy at Goldman. Price target is $72 (upside of 37% from Thursday's close).