It would be cool if we could hear a bit about private investors, how many joined and what kind of investors these are
Maybe Vitalik Buterin is investing in eHealth too? Who knows

The existence of private investors should be notified to the public to maintain openness. Maybe they'll tell us later.
Hold on there a bit longer, the end of the private sale is close, I'm sure they gonna disclose some information after it ends. Hope for some big news.