Directors and managers at Jupiter Asset Management, led by chief executive Edward Bonham Carter, are poised to offload £80m worth of stock in the company, which floated a year ago, and crystallise a 55% gain on its value.

The other senior staff members selling stock include chief investment officer John Chatfeild Roberts; chief financial officer Philip Johnson; non-executive director Matteo Perruccio; chief operating officer Adrian Creedy, marketing director Chris Crawford, income manager Anthony Nutt and absolute return manager Philip Gibbs .