The bonehead scalpelnutphuck compared VLBT to ACAD, look at the institutional ownership of ACAD and compare it to VBLT. The nutphuck does not own ACAD he only plays pump and dump worthless stocks.
It is called a warrant scam. Unscupulous cos sell shares to Investor, but the money is made not from shares but from warrants. The co does announce that the investor was issued warrants at say .02 for millions of warrants that are convertible if the price of the shares goes down a specified amount. Say in the case of VBLT the price is 2.50 or even 3.00 Well as you said the investors immediately begin shorting the stock to get the price down to the exercise price to cash out of the warrants to make millions and dilute the float even further as the warrants are converted into common shares.
This is you?