Jupiter's non-executive chairman Jamie Dundas is to step down due to ill health.
Dundas, who is also a director, will cease to be a member of the nomination and remuneration committees.
Senior independent non-executive director Liz Airey has replaced Dundas as chairman. She will also chair the nomination committee.
The board has appointed Lorraine Trainer a senior independent director and Jonathon Bond a member of the nomination committee. The firm is also searching for a new non-executive director to chair the audit committee.
He played a key role in leading Jupiter through its IPO
Airey said: "Jamie has provided an invaluable combination of extensive experience, personal wisdom and strong leadership. He played a key role in leading Jupiter through its IPO and its subsequent success as a listed company. Our thoughts are with Jamie at this time, and we hope he continues to make good progress in his recovery."
