Coinspeaker Moderna (MRNA) Stock Price Up 4% as Trump Talks about Possible COVID-19 Vaccine This YearModerna (MRNA) stock price is up as U.S. President Donald Trump has indicated that there could be a working COVID-19 vaccine by the end of the year.Moderna (MRNA) Stock Price Up 4% as Trump Talks about Possible COVID-19 Vaccine This Year