https://money.cnn.com/quote/quote.html?symb=UBER
https://finance.yahoo.com/quote/uber/holders/
Seems like pocket change compared to Alphabet’s other investments.
I think they sold it in 2019 when their lockup expired, but I can only find "they're thinking of doing it" news (https://techcrunch.com/2019/10/03/ceo-david-krane-suggests-g...) and not an announcement.
Also: I don't give a damn if the business isn't publicly traded either. If they're that big they have enough influence over any given market that the public should have the right to know what they're up to.
> Alphabet has a large stake in Uber.
Since Uber is a publicly listed company, its top owners are public information. Which show Alphabet to not have a significant portion of ownership in Uber.