Fuzzyjr
They aren't listed. They show up in my brokerage account without a listing, but a reference number and -0- market value. I have not attempted to trade, but why would I if there is no marketable value? IMHO you would be well advised to hold until the aforementioned back-door IPO occurs - who knows what the initial valuation may be - and with a trial to fund this should occur in the not too distant future.
Chicagoest