Some years ago a stupidly bought some shares in a US company capital raise. It’s traded on OTCQB (pink).
I only ever had have had a physical share cert. and I think I have lost these. They also have some sort of restriction on them and I’m told I need a “Green Medallion Guarantee Stamp” to do anything with then.
The shares are now worth less than $14 and I want to know if there is any way to write this off as an unsalable share parcel and realize the tax loss?