 LONDON--BUSINESS WIRE--Janus Henderson Group plc NYSEASX: JHG, Janus Henderson, the Company announces the appointment of Alison Davis as an Independent Non-Executive Director, effective today. Ms Davis will serve as a member of the Boards Audit Committee, Nominating and Corporate Governance Committee and Risk Committee. Ms Davis, who is based in the US, brings to the Board extensive financial leadership experience as a corporate executive and years of consulting experience as a strate 