the only thing that this link shows is that there are addresses that contain a large amount of bitcoin. and also most of them had these large amounts for a long time now. so your title saying X amount moved in October is wrong on both cases since they are not moved and these are not individuals for instance most of these addresses belong to big businesses such as bitfinex (which is a big exchange service)!
and any new address among them is most probably the same services moving coins to a new address after upgrading their wallet,... that happens pretty commonly.