The Grauniad reports that what the EU has had since summer is a “potential purchase agreement” for Moderna’s vaccine.
https://www.theguardian.com/world/20...-covid-vaccine
That’s somewhat less concrete than the firm pre-order HMG has placed with Pfizer. The government has cited higher cost, potential supply chain issues in Europe, and Moderna’s refusal to sign any actual supply contracts outside the USA as reasons for concentrating on Pfizer. It also quite reasonably points out that it therefore has an RNA vaccine in its portfolio. Pfizer’s cooperation with BioNTech on this project also means there will initially be two European manufacturing bases for it so there’s no chance of the US government slapping an export ban on the product to give their own population priority.