rumourrumours mean very little at this stage. The value of the stock is based upon the science to date and not what a particular broker might think. A broker might be taking a cautious position at this stage and that may be perfectly fine for his or her clients.
We don't need a broker to tell us what the stock is work, what is required is an analysis of the science and potential to date and that has been discussed in detail on this board.
IMHO this stock can go to zero or to the moon, and all will ultimately depend of the success of the trials. At this point 3.00 stock is not a signifcant premium based on the success to date. We certainly don't need a broker or brokerage firm to give us an opinion since the science will ultimately speak for itself.