Update should be out tomorrow after the close...as fundamental data goes, 3 days is about as current as you're going to find. As of the last update to May 15th then number was 25,700 which is a big % jump from where it was just one month prior when the number was down to just 7,000.
I realize 25,700 is beyond small at just 0.02% of the outstanding....but consider that's more volume than we've seen in a single day of trading from May 13th to the present, and that includes all the secondary exchanges.
With volumes this thin RVX's PPS can be pushed around like a disc on an air hockey table, and it doesn't take much $$$ to play around.