IHTM30215 - Transfers on death: shares and securities
The remaining four categories of qualifying property are concerned with shares and securities. Of the four categories, only the first, control holdings (IHTM30217), makes instalments available for quoted securities. The remaining three categories are confined to unquoted shares or securities (IHTM30216).
As many unquoted shares or securities will qualify for Business Relief (IHTM25131) at 100%, you are unlikely to have to consider these instructions very often.