[vbuterin]

There have been attempts at doing this, eg. https://cointelegraph.com/news/new-analysis-of-top-10k-ether...

I imagine you would have to talk to the analytics firms to get the best-in-class attempts to figure out what the split between individual users is.

[TekMol]

Thanks for the link.

In this linked tweet, it says the top 100 holders hold 26.4M ETH:

https://twitter.com/adamscochran/status/1255332319180840960

That should be roughly 1/4th of all ETH.