Good luck with that. But regardless, the old common shares will be cancelled by the Bankruptcy Court next month, and they will be worthless.
You won't be a shareholder as soon as the Plan of Reorganization is confirmed and becomes effective. And creditors, and everyone else, are always ahead of common shareholders in a bankruptcy. Common shareholders are dead last.
And everyone is suing the ex-CEO, so the question is, even if they win, what will they get and how will it be divided? (after the enormous legal fees, of course).