The answer to question 1 is a combination of the DTCC and his broker, or the relevant company registry for non-traded shares. https://en.wikipedia.org/wiki/Dep

The answer to question 1 is a combination of the DTCC and his broker, or the relevant company registry for non-traded shares. https://en.wikipedia.org/wiki/Depository_Trust_%26_Clearing_Corporation https://en.wikipedia.org/wiki/Depository_Trust_%26_Clearing_...