Stamp duty of transfer interest in a trust

[applix]

If trading Ltd co. shares are held in a trust, with one beneficiary, and that one beneficiary asks the trustees to appoint another related beneficiary to the trust, is there a stamp duty charge? It is legal or beneficial interest which crystalizes the charge or neither? In other words a change in trustee or beneificiary?

[section 44]

What type of trust?

It is legal or beneficial interest

Broadly:
Stamp duty - legal
stamp duty reserve tax - beneficial

[applix]

Hi sorry for delay. COuld you answer the question in the context of both a discretionary trust and a bare trust please. Thank you