From the press reporting it seems that the EU was the source of delay. UK and US had no data sharing. The Israeli data sharing is because both parties want more

From the press reporting it seems that the EU was the source of delay. UK and US had no data sharing. The Israeli data sharing is because both parties want more granular information on the vaccine's effictiveness over time and by age and other health demographics. It has nothing to do with the speed at which the delivery was agreed, as evidenced by the numerous other agreements signed without such programs with US and UK. "Meanwhile, the Commission’s negotiations with producers of mRNA vaccines were dragging on. COVID-19 didn’t just lend urgency to the negotiations: Talks were held virtually, adding an intangible complication. Austria’s Clemens Martin Auer, the chair of the member country steering board for the negotiations, remarked in late August that he had still never actually met Gallina in person — though he was by then a committed fan. Talks with American companies, especially Pfizer and Moderna, proved especially thorny: Both reopened aspects of the contracts that had already been determined when the companies, in the view of the Commission official close to the negotiations, thought they had a bit more leverage." https://www.google.com/amp/s/www.politico.eu/article/europe-coronavirus-vaccine-struggle-pfizer-biontech-astrazeneca/amp/ https://www.google.com/amp/s/www.politico.eu/article/europe-...