I've been following those sales addresses previously discussed for some time now, and they do all funnel into maybe 20-30 addresses that seem to be contained within maybe 5-6 wallets. You can tell from things like key sweeps that wallets are clustered, and from the central "node" addresses (like 13p5iQkqBEVgKmPeJqEL2LBRS44PjX1dZL), a number of txs with nice, round amounts get shuffled through and around to new smaller addresses, but occasionally lump to quite large sums.
If these are indeed friedcat/AM's wallets, then damn, he shuffles the funds often and holy hell, AM has a lot of BTC on the books right now. Granted, nothing's appearing in the self-mining addy or in the shareholder payout. And again, I don't expect a large part of what's on the books to be paid out as divs (divs were way, way too large last time, imo).
He is most likely scaling up as much as he can. Achieving 10% should be the minimum goal in my opinion. He needs to take every income he makes with the current mining power and invest it into new gear, and parts of it of course in gen 4. It is essential that gen 4 is completely funded.