Author Bio A Fool since 2019, Prosper's writing focuses primarily on the healthcare sector. Passionate about teaching and learning, he enjoys helping others make better decisions about their finances -- and enjoys it just as much when they return the favor. In his free time, you'll find him curling up with a good book or doing math. What happened? After more than doubling on Monday, Morphic Holding's (NASDAQ:MORF) shares are taking a beating on Tuesday. As of 11:10 a.m. EST, the biopharmaceutical company's stock is down by 13.6%. There are two likely explanations for Morphic Holding's losses on the stock market today. First, it could be that some investors are choosing to cash in on their shares following yesterday's furious rally. Second, the drugmaker announced a proposed public offering of common stock.