Coinspeaker MRNA Stock Lost 6.80%, Moderna CEO Says COVID-19 Vaccine Won’t Be Enough for the PlanetModerna (MRNA) stock has more than tripled in value since the beginning of the year but has lost 6.80% on Tuesday. Moderna CEO Stephane Bancel said no single manufacturer can make enough coronavirus vaccine doses for the planet.MRNA Stock Lost 6.80%, Moderna CEO Says COVID-19 Vaccine Won’t Be Enough for the Planet