Suspect that because of the history of the CRLs, there might be a bit of reluctance to jump on the shares. It was sub 25% over a year ago, see its according to Yahoos finance data that its still under 25%.
Actually see this as a 'good thing' for the share price IF this thing is ever approved. Could be a nice demand 'surge' IF the institutions decide they want shares.
Although it may result in a 'muted' spike because there are many shares 'available' (not locked up so to speak)..