Inputs go all the way back to one of the first miners it appears. Granted, I figured there were some large holders of around 3-4% but double digits and constantly rolling 1k vins forward into new masternodes doesn't strike me as incredibly healthy for a currency. I kinda figured Evan had around 200-300k coins presently (after clearing over a million in usd equivalent) with the chunks that went to the exchanges late april to early june but to still have a stockpile of coins this large is a bit shocking.