THe news yesterday was absolutely what was expected, so there was no impact on SP. It is difficult for me to see what would be the reason for any more short activity than previous. In fact, given the 35+% decline in share price from earlier this year, many of the shorts have covered and my guess is that new shorting is minimal.
THe company has operating funds for a while, a promising product ready for the FDA, and a lower sp. Why would you short it now?