Prothena Corp (NASDAQ:PRTA) reported quarterly losses of $(1.12) per share which missed the analyst consensus estimate of $(0.97) by 15.46 percent. This is a 16.42 percent increase over losses of $(1.34) per share from the same period last year. The company reported quarterly sales of $2.83 million which missed the analyst consensus estimate of $8.05 million by 64.87 percent. This is a 5.56K percent increase over sales of $50.00 thousand the same period last year.