The issue
A "no action" clause will appear in almost all English law-governed bond trust deeds.
A no action clause provides that a bondholder (or anyone entitled to payments on the bonds) cannot, initially, proceed directly against the issuer. Instead, the right to bring a cause of action resides with the trustee and it is only if the trustee, having become bound to take action, fails to do so within a reasonable time (with the failure continuing) that a bondholder can then itself proceed directly against the issuer.
Introduction
Towards the end of 2020, while businesses were reeling from the challenges of grappling with a global pandemic, the end of the Brexit transition period and LIBOR transition, the Law Commission published a paper analysing the current law underlying intermediated securities - Intermediated securities: who owns your shares? A Scoping Paper.