not sure of the terms assume millions of shares and warrants assume warrants are worthless unless they become in the money (which usually is (much) higher than the current price)
i would be afraid if the big buyers were buying the shares and warrants, and selling the shares - meaning they got the warrants for free ... but there has been very little volume - certainly not millions of shares ... plus assume the shares have to be held for a given period of time (the usual way private placements work)
i'll repeat - i don't know the terms of the private placements
but it sounds to me "big buyers" would know more than me ... and are still buying these private placements - and not selling the shares