Toward the end of the trading day on Tuesday, the challenger bank put out a trading update, confirming that Henderson would be leaving the firm by the end of April.
However, it said he will remain a director of parent company Arbuthnot Banking Group until 31 August 2018 to provide assistance with the transition.
Immediately following the announcement, shares in Arbuthnot Banking Group fell 6% from 1490p to 1400p but were back up to 1475p by close of day.
Henderson had not been in the role very long, joining the board of directors as CEO in April 2016 from Arbuthnot’s subsidiary, Secure Trust Bank, where he was head of strategic business development and CEO of personal lending mortgages.
Sir Henry Angest, chairman and chief executive of the challenger bank, said in a statement:
“I would like to thank Ian for the work he has done as chief executive officer of Arbuthnot Latham & Co, Limited. The Bank has grown significantly during his time here both in its size and in diversity of business and we are grateful for his contribution and wish him well for the future.”
This year, Arbuthnot Latham has added a number of appointees to key posts in its investment and wealth management arms, including Coutts & Co alumni Colin MacKenzie and Dean Moore.
At the time of its final results for 2017, the challenger bank had £1.04bn in assets under management.
