A spokesman for the network said Cupis’ decision to resign was reached with senior management “by mutual agreement” although his leaving date has not yet been confirmed.
Stephen Gazard has been appointed managing director and will lead SBG’s support for advisers across wealth and mortgages.
Lisa Martin, currently director of operations and sales, takes on an expanded role as director of mortgages across Sesame, PMS and Bankhall.
Head of member and customer support Stuart Davies, who has worked in the industry for over 20 years, takes on a wider remit as director of network operations working alongside Martin.
Cupis joined the network in 2007 and had been responsible for leading the mortgage business since then.
In early 2014 former chief executive George Higginson also stepped down following a failed attempt to do a management buy out of the firm.
The SBG board continues to be led by executive chairman, John Cowan, working alongside non-executive directors Diana Miller and Nick Criticos.
Following the retirement of Jim Newman, David Burlison has been appointed to the SBG board as strategic implementation director, subject to approval by the Financial Conduct Authority. Burlison has 20 years industry experience and is a partner at KPMG.
John Cowan, SBG executive chairman, said: “John's decision to leave Sesame simply follows a reshuffle of our senior team. He has just decided he would like to do something else. On behalf of the group I would like to thank Jim Newman, John Cupis, Jon Dear and Pan Andreas for their valuable contribution during their time with the business. We wish them well for the future.
“We are pleased to welcome David to the board. His expertise will be valuable to us as we simplify our business model and implement the group’s new strategy.
“In addition, the creation of several new expanded roles within our leadership team reflects the depth of experience and expertise we have within our business, and will ensure that we remain focused on delivering the best possible support to advisers.
“I am excited to be leading this strong and talented management team and we look forward to delivering quality services to both wealth and mortgage advisers.
“The outlook for both our markets and our profession is incredibly positive, so a key objective for us is to ensure that we continue to place customers at the centre of all our activities as we implement our plan to continue to build a successful and sustainable business.”
