I suspect the billion shares will be held by the company so that no one can perform a hostile takeover. If someone managed to buy more than 51% of the company the group holding those shares could create enough shares so they had 51% of the company and they can retain control of their own corporation. It’s an issue for penny stocks especially because their MCs are often so small and they are so volatile that a $50m company can easily have their price drop to a million dollars on a bad trading day. If they didn’t have insurance like this some corporate raider could easily grab 51% of the shares for next to nothing and steal the company’s assets.
I do believe that filing describes the purchase of SYSX.