0001104659-22-028171 Sample Contracts

MERSANA THERAPEUTICS, INC. common stock SALES AGREEMENT
Sales Agreement • February 28th, 2022 • Mersana Therapeutics, Inc. • Pharmaceutical preparations • New York

Mersana Therapeutics, Inc. (the “Company”), confirms its agreement (this “Agreement”) with Cowen and Company, LLC (“Cowen”), as follows: