Mersana Therapeutics, Inc. (MRSN) came out with a quarterly loss of $0.09 per share versus the Zacks Consensus Estimate of a loss of $0.18. This compares to loss of $0.35 per share a year ago. These figures are adjusted for non-recurring items.This quarterly report represents an earnings surprise of 50%. A quarter ago, it was expected that this company would post a loss of $0.18 per share when it actually produced a loss of $0.20, delivering a surprise of -11.11%.Over the last four quarters, the company has ...