A few thoughts... I agree with KayakerBC and Windymere that the drop in price is based in retail investor fear and if, as Windymere said, there was a "leak" that the drop would be much larger and the volume would be huge. "Leaks", as most of us know, don't generally land in the ears of small players. Additionally, the distribution of shares by brokerage would not, to me, indicate that someone knows something that isn't available to everyone else.
In addition to fear I think some investors may be adjusting their holdings from a risk reward standpoint depending on their view of what the future value may be of RVX. I know from this board there were different interpretations of what value remains in RVX as far as future earnings potential in the event of a sale.
Regarding Institutional Investors, I doubt if they will participate in any buying to support the price. Why do so prior to an ASSURE announcement when the price is going their way anyhow. I would more expect that they would participate in the rally should good ASSURE results be released.
As far as the company making a statement regarding the fall in price, I doubt if management will make a statement on its' own accord but you never know. When the share price was on the rise for no apparent reason, RVX was ordered to make a statement by the TSX.
Personally I think the odds are that ASSURE results will be good; As others have said SUSTAIN top line results were good and anything else in that study which would have been materially negative would have had to be released; To my knowledge there was nothing negative published during ASSURE; And, don't forget that when ASSURE was put on hold way back during ASSERT it was because RVX had a clearer view of who their patient population was and as such the recruitment criteria for ASSURE was refined. That bodes well for the outcome.
All of course IMO