"Maybe there is a Big One, who's collecting all the shares he can buy cheap"
This is not normal trading or normal valuation for a company like GTCB at this time in it's history and promising future. Either we are being manipulated down by some big players that are collecting shares on the cheap as you surmise, or there is a nasty cockroach somewhere that we investors are clueless about and some big knowledgeable seller is relentlessly unloading. Let us hope it is the former because the nasty cockroach theory could prove to be quite nasty.
As for Dew and the others that think these conspiracy theories are delusional, you are a lot more gullable than you think if you still believe this is normal trading for GTCB...