You would need legal standing within the lawsuit - meaning that shareholders must file a separate lawsuit much like Deirdre Leane to be included in the settlement but it must be done before a settlement - that is a TRO.
Carter was very deliberate in his plan to exclude shareholders - that is why he never communicated with shareholders - he never made any promises - he never pumped the stock to encourage investors that they would share in a settlement.
If the company is inactive or Dissolved by the state there is another hurdle to cross.