It seems highly unlikely to me that he's been told to close down by the SEC or any LE.  Were that to have happened then closure would have been more of a case of pulling the plug out than the gradual winding down that has been announced.  This feels far more like being told to stop by his own lawyers than a cease-and-desist or seizure by some government agency - they don't give you a month to sort things out in, they want immediate cessation of activity.