The Publicly Traded Securities Conversion Form is used if your NDTCO account holds an investment that was previously a private investment, but the company has since had an IPO and your stock needs to be converted from private to public:
The Publicly Traded Securities Conversion Form is used if your NDTCO account holds an investment that was previously a private investment, but the company has since had an IPO and your stock needs to be converted from private to public: