Brief: Day One Biopharmaceuticals to Acquire Mersana Therapeutics
Nov 13 (Reuters) - Mersana Therapeutics Inc MRSN.O: DAY ONE BIOPHARMACEUTICALS TO ACQUIRE MERSANA THERAPEUTICS MERSANA THERAPEUTICS INC - DAY ONE TO BUY MERSANA FOR UP TO $285 MILLION MERSANA THERAPEUTICS INC PROPOSED DEAL FOR $25.00 PER SHARE IN CASH Source text: ID:nGNX7Rxjhf Further company coverage: MRSN.O ((reuters.briefs@thomsonreuters.com;))