And... that's how we prove they're using pre-mined coins to fulfill their PayBase orders...
The blockchain never lies.
So basically you're saying those coins never visited any exchange? Could it be possible that one of those 740 or 370 addresses was an exchange deposit address? I know it's unlikely because it looks to be a fairly neat halving pattern, so it would be an extremely odd coincidence that e.g. a Hashpoint customer moved 740 coins to an exchange then GAW purchased 370 coins and the exchange just happened to send them out from the same deposit wallet. Am I thinking about this right?
No. The two exchange addresses that came up were coins being sent to from the premine. The coins purchased by the tx I dug through were 100% pre-mined coins.
EDIT: If you look at both tx off the "halfing" txs you'll notice that both halves go off to do the same thing.
EDIT2: I made sure to bold the txs where they ended and moved on from the dispersals.