whats the sum?
3,189,354.44
thx for doing some mental arithmetic

but holy cow, thats 27% of all coins.
And how many persons holds those 250 adresses? I would guess very few.
At least one is an Mt. Gox cold storage address, of which at least 1 million
BTC are estimated to be in. Many, many people hold a share of those cold storage addresses.