The security trades OTC, which means Over the Counter. A term for a type of security trading that allows people to buy/sell unlisted securities - those not recognised on your typical stock exchange.
The trading of these assets are facilitated by brokers who act as market makers. Due to the absence of an active market, it can be more difficult for efficient price discovery, so as a result the bid/ask spreads tend to be higher to facilitate their costs(& profit). You need to pay the effective bid or ask rate offered by brokers in the market, that are willing to help assist with trading in these markets. The more liquid the stock, the tighter the bid/ask spread as a result of competition.
Least that’s my understanding but probably better wording out there.