Coinspeaker Moderna (MRNA) Stock in Mad Scramble: Shares Soared, Stumbled and TankedOn Thursday, Moderna (MRNA) stock was on a wild ride. Just in a few hours, it skyrocketed, continuing its previous growth, then halted, and fell. Now in the pre-market, it has started to gain again.Moderna (MRNA) Stock in Mad Scramble: Shares Soared, Stumbled and Tanked