Bradford-based Yorkshire Building Society announced on Friday that Alasdair Lenman has been appointed as interim chief executive officer with immediate effect and that Robert Purdy has been appointed interim chief finance officer .

Stephen White, who has been acting as interim CEO, will leave the mutual society to take up a new role with Santander.

Yorkshire’s previous CEO Mike Regnier joined Santander UK as CEO last year.

Yorkshire Building Society has assets of £52 billion and nearly three million customers.

Yorkshire Building Society chairman John Heaps said: “Alasdair Lenman has 23 years’ experience in finance and has worked in financial services for 15 years, most recently as our chief finance officer.

“He has played a leading role in the development of our existing strategy, which has yielded some of our strongest financial results in our history.

“The process to appoint the next permanent Chief Executive Officer is well advanced and will conclude as planned later this year.”

Lenman said: “Yorkshire Building Society is enjoying its strongest trading performance in its over 150-year history.

“This is enabling us to reward our members with market leading savings rates and invest in the transformation of our business so we can deliver even further value to our customers.

“I look forward to supporting the society until the process for appointing a permanent chief executive officer concludes.”