Well first off, yes PREMs has removed many worthless securities from brokerage accounts at the brokers request if the ticker shows on the PREMs list. The reason for that is that after 6 years of no activity, the security is incurring a monthly management fee of $11 for the brokerage to maintain their certificate for that ticker. May not seem a lot of money but when you have hundreds of dead tickers and over many years, it adds up.
You are not a DTCC "Client", you don't exist to the DTCC. The DTCC client they refer to are the brokerages and clearing firms with their accounts along with transfer agents.
Normally its an annual process, the DTCC issues a new list of tickers eligible for destruction. A company shows up on that date with a giant shredder, the DTCC and company perform a shredding process for all of the certificates requested to be destroyed. It did not happen last year due to COVID, don't know if it will happen this year.
Your broker will send an email or an alert that the shares will be removed from your account. What recourse do you have? None, they are worthless securities that have no active business associated with them. The CUSIP and the active business have been gone for 6 years at least. Unless you can prove an active registered business still exists to your broker the shares are gone. No cares about Internet rumors of being private or "dormant".. no such statutory term.
Essentially the lesson learned is, stop buying shitty stock, take the tax loss and move on, it ain't ever coming back, there isnt a single occurence of shares being added back into an account.
