Mersana Therapeutics (NASDAQ:MRSN) reported quarterly losses of $(0.11) per share which beat the analyst consensus estimate of $(0.15) by 26.67 percent. This is a 31.25 percent increase over losses of $(0.16) per share from the same period last year. The company reported quarterly sales of $16.36 million which beat the analyst consensus estimate of $7.71 million by 112.20 percent. This is a 52.89 percent increase over sales of $10.70 million the same period last year.