I heard a rumor that it was some guy named Martin who's broke and desperate. Martin and Milton sound similar enough and so do their stories. He's selling his shares so he can pay his lawyers. I don't think it will help much if they could get an injunction. Based on his desperation he would probably violate the injunction.
They would only get an injunction if he was illegally selling the shares anyway like if they were restricted for a certain time period. He has no incentive to stop illegally selling them so maybe Mark could get the SEC to seize his brokerage account or even the money he gained from the sales. If that's not possible then it would take too long to remedy the injured shareholders--us.
Now that I think about it, if he has an injunction and his broker knows/is notified, then the brokerage could be liable as an underwriter under the Securities Act. Then we could get some money (hopefully). I'm not 100% about this though.