They paid more.
https://www.timesofisrael.com/israel-will-reportedly-pay-mor...
So Israel probably didn't really compete with the US for it.
>Israel will pay a premium price for the millions of COVID-19 vaccines it has ordered from US-based pharmaceutical company Pfizer, over 40 percent more than the US government or the European Union, Channel 13 news reported Sunday.
So Israel probably didn't really compete with the US for it.