Immune's case is still not closed, and in a liquidation, if an action is to be taken to cancel the common stock, it would be done at the end. The others you've held had such an order, and it was likely included in a re-organization plan. But, again, I'll be surprised if the trustee even bothers since the stock will never trade again and the company will be shut down. That stock will be your reminder to never invest in companies that are bankrupt. The stock is worthless.
The motion filed today signals that the trustee is actually dispositioning some of those contracts he's studied for the last year or two, recommending abandoning them. Could be he's getting ready to end the proceedings.
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