I believe the shares you are talking about were restricted shares paid to individuals for services.
But what of the common stock?
Recall that this was to be an exchange. And if the exchange occurred, then how would there be shares of $IMMB left to trade? And shares of $IMMB are most certainly still trading. Per the $ENZC filing:
Moreover, according to the transfer agent, 574,964,967 shares of IMMB are STILL outstanding. How could this be if there was an exchange?