Oppenheimer Downgrades Prothena Corporation (NASDAQ:PRTA) to Perform from Outperform
Oppenheimer downgraded Prothena Corporation plc (NASDAQ:PRTA) to Perform from Outperform on May 27 without a price target. This rating update…
Tag: Prothena
Jefferies Downgrades Prothena Corporation (PRTA) After Negative Trial Results
On May 27, Jefferies downgraded Prothena Corporation plc (NASDAQ:PRTA) to Hold from Buy and slashed the price target to $6…