CWBR - CohBar's COO Jon Stern plans to step down from management role May, 13 2020 09:32 AM CohBar Inc. CohBar (NASDAQ:CWBR) COO Jon Stern plans to step down, effective May 31, 2020. Mr. Stern had joined the company in 2012.More news on: CohBar, Inc., Healthcare stocks news, Stocks on the move, Read more ...