As a young child, my parents bought some St George shares in trust for me. Initially they purchased 100 shares, and through a dividend reinvestment plan over the next 20 years I accumulated a total of around 320. These were recently converted to around 500 Westpac shares worth around $10,000. I am considering getting a margin loan over them, and in order to do this, I understand I have to do an off market transfer so they are held only in my name (instead of in trust). Will this trigger a CGT event for my parents? I also have no paper records for the DRP transactions between 1987 and 1992, so am unable to accurately calculate a cost base for CGT purposes. What can I do about this?