I just bought 25,000 shares of CYDY at 0.24/ share

I just bought 25,000 shares of CYDY at 0.24/ share with the order via Schwab being filled in the blink of an eye. There must be a lot of shares available at that price, but why would the sellers not price their shares higher in price to enhance their profits? Perhaps manipulation or simply naked shorting? If naked shorting how am I guaranteed that I will receive valid shares in my account in 2 to 3 days when the sale is completed?
I don't see this kind of action with other stocks but they're not OTC but that shouldn't make any difference.
Just another part of the CYDY puzzle that would be helped by getting the share price up so the company could join NASDAQ which would attract real institutional investors perhaps.