Before you head off into the less probable scenarios (such as illegal shorting), consider the most obvious and probable. The most obvious source of shares for sale (certainly at these prices) is someone who gets them for free, is not an insider, and whose sales won't show up on the filings. As I asked before (and got no answer), who besides Julios fits that description? Who else (apart from insiders) even has that quantity, much less got that quantity cheaply enough to sell them at these prices?