Since FINRA delisted the stock and notified your broker that it could no longer be traded at any price, I would check with your broker to see if they are going to include this loss in your end of year statement. That would make sense to me.
If this is the case, then any payout you get could come with a 1099 to report as a gain. I am not sure this is the way it will go but your broker should know because they have seen this happen before. Let everyone know what you find out.
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